# Equities Lab Operators

Below, you will find a list of all of our operators. To find out how operators work read our Operators Overview

## *

x * y
The multiply operator enables you multiply any number of values.
 Net Income 1Q * 4

returns a number

## **

x ** y
The power operator allows you to take x to the power of y. For example 2 ** 3 equals 8.
returns a number

## +

x + y
The Plus operator adds together multiple properties or terms together.
 Net_Inc_1Q + Net_Inc_2Q > 0.0 returns a number

## –

x – y
The Subtract operator subtracts a term or field from another.
 Close – (Close as of 3.0 days ago) > 0.0 returns a number

## /

x / y
The divide operator enables you to divide one term by another.
 Net Income 1Y / Total Employee Number> 1.02

returns a number

## <

x < y
The less than operator allows you to test whether one term is less than another term.
 Close < (Close as of 3.0 days ago)

returns a true/false

## <=

x ≤ y
The less than or equal to operator allows you to test whether one term is less than or equal to another term.
 Close <= (Close as of 3.0 days ago)

returns a true/false

## >>

x > y
The greater than operator allows you to test whether one term is greater than another term.
 Close > (Close as of 3.0 days ago)

returns a true/false

## =>>=

x ≥ y
The greater than or equal to operator allows you to test whether one term is greater than or equal to another term.
 Close >= (Close as of 3.0 days ago)

returns a true/false

## abs

abs x
The absolute value operator returns the absolute value of its argument.
 abs (change of Open over 1.0 days)

returns a number

## abs-ratio

absrat x
The Absolute Ratio Operator returns the absolute ratio of the term you enter into it. Since it is giving a ratio the value will always be over 1. For instance, if a stock lost 5% in a day than the Absolute Ratio of the Close/(Close as of 1 day ago) would be 1.05.
 abs ratio (Close ÷ Open) > 1.02

returns a number

## always-since

always X since mm/dd/yyyy
The always since operator tests if a condition is always true since a date in the past. For instance one could check if a company’s sales growth was always positive since 2004.
 always (EPS_1Q > 0.0) since Thu Jan 01 2004

returns a true/false

## always-within

always X within last n days
The always within operator tests if a condition is always true within X trading days. For instance, one could check if a company’s sales growth was always positive within 251 trading days.
 always (Close > Open) within 3.0 days

returns a true/false

## and

a and b
The and operator requires all conditions to be true. You can also click the green + symbol to add another clause.
 Net_Inc_T12M > Net_Inc_1Y and Close > (Close as of 5.0 days ago)

returns a true/false

## as_of

X as_of n days ago
The as of operator allows you retrieve a value as of X trading days ago. So Net Income as of 251 trading days ago(1 year) would give you the previous year’s net income.
 Close as of 8.0 days ago < Close

## at

X at mm/dd/yyyy
The at Operator returns the term’s value on a desired date in the past.
 Close > (Close at Jan 01 2011)

## average

average x, y, …
The average operator returns the average of its arguments.
To add another value simply press Control + Shift + A.
 average of Sales_Gwth_5Q_to_1Q, Sales_Gwth_6Q_to_2Q, Sales_Gwth_7Q_to_3Q, Sales_Gwth_8Q_to_4Q

returns a number

## average-across

average X across
The average across operator returns the average of a value across any set of stocks such as industry, sector, or the entire market.
After across specify which set of stocks to have the average calculated on.
After where define constraints that a stock must pass in order to be included in the average.
 (average of Market Cap across Industry where (Market_Cap > 10b))

returns a number

## average-since

average X since mm/dd/yyyy
The average since operator takes the average of a value pertaining to a stock since a date in the past such as yield. (Average yield since 01/01/2010)
 Close > (average Close since Tue Jan 01 2008)

returns a number

## average-within

average X within n days
The average within operator returns the average of a value within X number of trading days such as the average closing price within 10 trading days.
 average Close within 4.0 days > (average Close within 9.0 days)

returns a number

## average-yearly

average X yearly
The average yearly operator takes the average of a given property over the past X number of years. For instance, average-yearly of market cap over 2 years will net the average value for market cap over the past 2 years.
returns a number

## backtest

backtest
The Backtest Operator will return a multiple that represents the backtest return since 2003 of whatever term you put in the operator. So Backtest of (Market Cap > 100,000) = 2 means that since 2003, the starting backtest value had doubled which represents a 100% back test return.
 backtest of classify as Technology > (backtest of classify as Technology as of 5.0 days ago) returns a number

## change-over

change
The change over operator returns the % change of a value within X trading days
 change of Close over 10.0 days > (change of SPY:Close over 10.0 days)

returns a number

## choose-range

choose from x to y step z
The Choose Range operator enables you test a range of values in a trading model and use the value that gives the best return. For instance you could test what the best month of the year is to hold the S&P 500.
 Buy When Month_of_Year = choose from 1.0 to 12.0 returns a number

## choose-set

choose one of x,y,z
The Choose Set operator enables you test a set of values in a trading model and use the value that gives the best return.
 Close > (Close as of chooseSet days ago) choose-set of 10.0 20.0 28.0

## classify-as

classify as
The classify as operator allows you to indicate the industry, sector, exchange, etc. of the stock.
To add another field within the operator press control + Shift + A. Multiple fields act as or terms. In the example below classify as would return true if the stock was either classified as Technology or Airlines.
 classify as Technology, Airlines

returns a true/false

## correlation-since

correlation of X with Y since mm/dd/yyyy
The correlation-since operator gives the correlation of two properties since a given date.
Correlation is a dimensionless value that ranges between -1 and 1, which indicates how closely a change of one property is related to a change in another. 1 is the strongest possible positive correlation, -1 is the strongest possible negative correlation. 0 implies no relationship at all.
Because correlation is dimensionless, different correlation values derived from different variables may be compared to one another. For the same reason, one can use different values of correlation to gauge relative strength of correlation.

returns a number

## correlation-within

correlation of x with Y within last n days
The correlation-within operator gives the correlation of two properties within X trading days.
Correlation is a dimensionless value that ranges between -1 and 1, which indicates how closely a change of one property is related to a change in another. 1 is the strongest possible positive correlation, -1 is the strongest possible negative correlation. 0 implies no relationship at all. Because correlation is dimensionless, different correlation values derived from different variables may be compared to one another. For the same reason, one can use different values of correlation to gauge relative strength of correlation.

returns a number

## count

count of x,y,z…
The count operator counts the number of conditions that are true.
For example, if we had count A,B,C:
If B and C are true, count would return 2.
If only B was true, count would return 1.
 count of (Close > average Close within 20.0 days ) (Net_Inc_1Q > Net_Inc_2Q) (Sales_1Q > Sales_5Q)

returns a number

## count-across

count-across
The count across operator returns the number of times the condition was true across any set of stocks, such as industry, sector, or the entire market.
After across in the operator you will specify which set of stocks are included.
After where in the operator you will define constraints that a stock must pass in order to be included.
 count of (Close > (Close as of 1.0 days ago)) across (Market_Cap > 500m) where (Market_Cap > 500m)

returns a number

## count-since

count of X since mm/dd/yyyy
The count since operator returns the number of times the condition has been true since a date in the past.
For instance, the operator could tell you how many times a stock has increased over 4% in a day since the start of 2014.
 count ( RawClose > RawClose as of 1.0 days ago) since Jan 01 2014

returns a number

## count-within

count of X within last n days
The Count Within operator returns the number of terms that pass the conditions you entered into the operator within X number of days. For instance, the operator could tell you how many times a stock has increased over 4% in a day within 50 trading days.
 count (Close > (Close as of 2.0 days ago)) within 10.0 days

returns a number

## covariance-since

covariance of X with Y since mm/dd/yyyy
The covariance since operator takes the covariance of two properties since a given date. Covariance of x and y is a value with units of x*y, which measures the degree to which y changes when x changes.
A positive covariance indicates positive change of x with a positive change of y, and a negative covariance indicates a negative change of x with a positive change of y. Unlike correlation, one covariance value cannot be compared to another due to the different units of each covariance value. As a result, covariance values cannot be used to show relative strength of covariance.

returns a number

## covariance-within

covariance of x with Y within last n days
The covariance-with operator takes the covariance of 2 variables within X number of days.
Covariance of x and y is a value with units of x*y, which measures the degree to which y changes when x changes. A positive covariance indicates positive change of x with a positive change of y, and a negative covariance indicates a negative change of x with a positive change of y. Unlike correlation, one covariance value cannot be compared to another due to the different units of each covariance value. As a result, covariance values cannot be used to show relative strength of covariance.

returns a number

## decreasing-over

decreasing x over n days
The decreasing over operator looks for companies where the given term is decreasing over the specified time period..
 decreasing Market Cap over 252 days

returns a true/false

## ema

ema of X over n days
The Exponential Moving Averages operator reduces the lag of a simple Moving Average by applying more weight to recent prices. The weighting applied to the most recent price depends on the number of periods in the moving average.
 ema of Close over 4.0 days

returns a number

## equals

x equals y
The equals operator determines whether two conditions are equal to one another.
 PE = (PE as of 5.0 days ago)

returns a true/false

## ever-since

ever X since mm/dd/yyyy
The ever since operator tests if the condition you enter has ever been true since a date in the past.
For instance, has a stock ever had a day with 3 times its normal volume since 2010.
 ever 1 > 3.0) since Fri Jan 01 2010

returns a true/false

## ever-within

ever X within last n days
The Ever Within operator tests if the condition you enter into the operator has ever been true within X number of trading days. For instance, has a stock ever had a quarterly surprise greater than 20% within 251 trading days.
 ever 2 > 1.15) within 10.0 days

returns a true/false

## future

X in the future n days
The future operator allows you retrieve a value that is X trading days in the future. THIS ONLY WORKS IN THE PAST! Equities Lab CANNOT predict the future! Net Income future 251 trading days(1 year) would give you the next year’s net income. If this were asked in 2010, it would give you 2011’s income. Asked 6 months ago, it gives you Undefined.

## growth-yearly

growth of X yearly
The growth-yearly operator measures how much a property has increased from one year to the next, over X number of years.
 growth of Market Cap over 2 years > 0

returns a number

has x, y, …

## if

if cond then A else B
The if operator returns one of two values depending on if it’s condition evaluates to true or false.
• if true then Close else Open -> Close
• if false then Close else Open -> Open
 if (EPS_1Q > 0.0) then (average Close within 25.0 days) else (average Close within 80.0 days) > (average Close within 100.0 days)

returns a number

## increasing-over

increasing x over n days
The increasing over operator when applied to X returns those companies whose X has been increasing over so many days.
 increasing Market Cap over 252 days

returns a true/false

## logarithm

logarithm of x
The logarithm operator takes the natural logarithm of a number. Like all logarithms, it will return an undefined value if the input is less than or equal to zero.
returns a number

## market-rank

market-rank
The market rank operator ranks stocks according to the percentile value of the given property. For instance, the example below shows all stocks in the 90th percentile of market cap.
market rank of Market Cap > 90
returns a number

## max

max x, y, …
The max operator returns the maximum of a set of terms you enter into it. To add another box you simply press control + Shift + A, or input a comma into the previous box.
returns a number

## max-across

max-across
The max across Operator returns the maximum of X across a set of stocks such as the entire market or an industry.
• After across in the operator you will specify which set of stocks are include
• After where in the operator you will define constraints that a stock must pass in order to be included.
 max of Rel_Strength_MR_T1M across Industry where (Market_Cap > 1000.0)

returns a number

## max-since

max X since mm/dd/yyyy
The max since operator takes the maximum of the value since a date in the past, such as the maximum closing price since 01/01/2014
 Close ÷ (max Close since Tue Jan 01 EST 2008)

returns a number

## max-within

max X within n days
The max within operator takes the maximum of the value within X trading days such as the maximum closing price within 180 trading days.
 max Close within 180.0 days

returns a number

## median-across

median x across
The median across operator returns the median value across a range of stocks.
• After across in the operator you will specify which set of stocks are included in the calculation
• After where in the operator you will define constraints that a stock must pass in order to be included.
 median of Market Cap across Industry where (Market Cap > 1m)

returns a number

## min

min x, y, …
The min operator returns the minimum of a set of terms you enter into it.
To add another box you simply press control + Shift + A, or input a comma into the previous box.

returns a number

## min-across

min-across
The min across operator takes the minimum value across any set of stocks including industry or sector.
• After across in the operator you will specify which set of stocks are included
• After where in the operator you will define constraints that a stock must pass in order to be included.
 min of Market Cap across Industry where (Market Cap > 1m)

returns a number

## min-since

min X since mm/dd/yyyy
The min since operator takes the minimum of value since a date in the past such as the minimum closing price since 01/01/2014
 min Close since Tue Jan 01 EST 2014

returns a number

## min-within

min X within n days
The min within operator takes the minimum of the value within X trading days. For example, the minimum closing price within 30 days.
 min Close within 30 days

returns a number

## monte-carlo-range

monte carlo x to y

The Monte Carlo Range operator enables you enter a range of inputs for a Monte Carlo Simulation.

For Stock Screeners, a random Monte Carlo run will be returned.

For Backtests:

• the backtest will be run up to 50 times

monte_carlo_runs=number of run to override the default.

• the 10%, 50%, and 90% percentiles will be returned.

monte_carlo_percentiles = x + y + z overrides the default.

example: monte_carlo_percentiles = 30 + 40 + 70 return the 30th,40th, and 70th percentile returns.

• Backtests of Monte Carlo simulations can consume a tremendious number of resources, so it can be 30+ minutes to compute your results. Each subsiquent call to the backtest will return the cached result, so change the number of runs if you actually want to rerun the entire simulation

returns a number

## monte-carlo-set

monte carlo {x,y,z}
The Monte Carlo Range operator enables you enter a range of inputs for a Monte Carlo Simulation. For Stock Screeners, a random Monte Carlo run will be returned. For Backtests:
• the backtest will be run up to 50 times.
monte_carlo_runs=number of run to override the default.
• the 10%, 50%, and 90% percentiles will be returned.
monte_carlo_percentiles = x + y + z overrides the default.
example: monte_carlo_percentiles = 30 + 40 + 70 return the 30th,40th, and 70th percentile returns.
• Backtests of Monte Carlo simulations can consume a tremendious number of resources, so it can be 30+ minutes to compute your results. Each subsiquent call to the backtest will return the cached result, so change the number of runs if you actually want to rerun the entire simulation

## not

not x
The n ot operator enables you to require that a condition is not true.
 not classify Transportation

returns a true/false

## not_equals

x not equal to y
The not equals operator is used to determine whether two conditions equal or not equal each other.
 PE != PE as of 5.0 days ago

returns a true/false

## odds

odds of x,y,z…
The odds operator returns the percentage odds between 0% and 100% to which the values that you enter into the operator are true. If 2 out of the 5 values are true then the odds operator would return 40%.
 odds of (Piotroski F Score T12M > 6) 3 across 4 within 28.0 days

returns a number

## or

a or b
The or operator enables you to require that a stock passes at least one of X conditions you specify.
 match any of the following Close > (Close as of 5.0 days ago) or PE > (PE as of 5.0 days ago)

returns a true/false

## percentile-across

percentile across
The percentile across operator gives the value at the Nth percentile across any set of stocks including industry or the entire market.
• After across you will specify which set of stocks are compared against to get the percentile
• After where you will define constraints that a stock must pass in order to be included.
 Net Income at 50.0 percentile across Industry where 5 < 10

returns a number

## predict

predict x, y, …
The predict operator predicts the field named goal_something using the attributes specified. It filters the input set based on the galaxy_something variable, and uses the variable train_something to determine the training set.
returns a number

## rank

rank of w in (x,y,z…)
The rank operator returns the rank (0-100) of the property or term pertaining to a stock compared to other property or term pertaining to a stock. For instance, you could find stocks whose current closing price ranks the highest out of its 12, 24, and 50 day moving average.
 rank of Close in (average Close within 5.0 days) (average Close within 12.0 days) =100.0

returns a number

## rank-across

rank-across
The rank across operator returns the rank (0-100%) of the property or term across any set of stocks such as its industry or sector or mid caps. Take the following example:
 rank of PE across Industry where 6
This will give you the stock’s rank within its own industry, including only stocks with a Market Cap greater than 500m. So if a stock has a P/E in the 33rd percentile it would have a rank of 33.
Try modifying this Stock Screener to give you the top 25% rather than the bottom 25%

returns a number

## rank-bottom

rank X is in the bottom y%
Is the rank of a term in the bottom n%?
For example, the following example would be false for a stock with a P/E of 100 and true for stock with P/E of 1.
` rank P/E is in bottom 1% Keywords: rank-bottom quartile`

returns a true/false

## rank-since

rank of X since mm/dd/yyyy
The rank since operator sorts out all values since XX/YY/ZZZZ from least to greatest and puts them in a ranking from 0 to 100. It then allows you to specify where the current value ranks in that order. For instance, you could specify that the stock’s closing price currently ranks in the highest decile since 01/01/2014.
 rank Close since Fri Jan 01 2010 > 85.0

returns a number

## rank-top

rank X is in the top y%
Ranks stocks from least to greatest according to a given property, then returns all stocks that score in the top X% of that property.
returns a true/false

## rank-within

rank of X within last n days
The Rank Within operator sorts out all values within N days from least to greatest and puts them in a ranking from 0 to 100. It then allows you to specify where the current value ranks in that order. For instance, you could specify that the stock’s closing price currently ranks in the highest decile compared to its closing prices within 251 trading days.

returns a number

## round

x round to nearest multiple of y
The round operator enables you to round terms.
 (Market_Cap round to nearest multiple of 100000.0)

returns a number

## round-power

x round to nearest power of y
The round power operator will round any property or term you desire to the nearest power of X. So if you say round Market Cap to the nearest power of 5 it will round the market cap to the value nearest a power of five, such as 5, 25, 125, 625, 3125, 15,625, 78,125, Etc..
 (Market_Cap round to nearest power of 2.0)

returns a number

## skewness-across

skewness X across
The skewness across operator returns the skewness of a value across any set of stocks such as industry, sector, or the entire market.
Skewness can be defined as a measure of how positively or negatively-biased a given dataset is from a normal distribution.
• A skewness of >0 implies a median value greater than the mean (positive bias)
• A skewness of 0 implies a median value less than the mean (negative bias).
 skewness of Relative Strength across Industry where ( Market Cap > 100m) > 0.5
1. After across you will specify which set of stocks to have the skewness calculated on.
2. After where you will define constraints that a stock must pass in order to be included in the skewness.

returns a number

## stddev

stddev x, y, …
The standard deviation operator returns the standard deviation its terms.
Press Control + Shift + A to add another box to add another property or value.
 standard deviation of Close, Open, High, & Low > 0.1

returns a number

## stddev-across

stddev X across
The standard deviation across operator returns the standard deviation of a value across any set of stocks such as industry, sector, or the entire market.
1. After across in the operator you will specify which set of stocks to have the standard deviation calculated on
2. After where in the operator you will define constraints that a stock must pass in order to be included in the standard deviation.

returns a number

## stddev-since

stddev X since mm/dd/yyyy
The standard deviation since operator takes the standard deviation of a value pertaining to a stock since a date in the past, such as yield.
stddev Relative Strength since Jan 1, 2018

returns a number

## stddev-within

stddev X within n days
The standard deviation within operator takes the standard deviation of a value pertaining to a stock within a certain number of trading days, such as yield.
stddev Relative Strength within 30 days

returns a number

## sum-since

sum of X since mm/dd/yyyy
The sum since operator takes the sum of its term since a specified date, meaning it adds the property for each day from the specified date up until the current date.
 sum of Net Income since Sun Jan 01 2012

returns a number

## sum-within

sum of X within last n days
The sum within operator takes the sum of a property or term pertaining to a stock within X trading days, meaning it adds its term for each day within X trading days up until today. If the stock’s closing price the past 3 days were 5, 6, and 7 then the sum of the closing price within 3 days = 18.
 sum of (Close – Open) within 5.0 days > 0.0

returns a number

## then-since

X then Y until Z since mm/dd/yyyy
The Then Since operator enables you to test whether a condition was true after another condition was true until another condition is true since a date in the past.
 Close > (Close as of 2.0 days ago) then (Close > (Close as of 2.0 days ago)) until (Close < (Close as of 2.0 days ago)) since Jan 01 2008 returns a true/false

## then-within

X then Y until Z within last n days
The Then Within operator enables you to test whether a condition was true after another condition was true until another condition is true within X Trading Days.
 Close ÷ (Close as of 3.0 days ago) 0.99 then 7 > 1.02) until 7 < 1.0) within 10.0 days returns a true/false

## ticker-is

ticker is
The ticker is operator allows you to specify a ticker for use in a stock screener or trading model. For instance, in a stock screener you could create a condition that says ” Ticker Is AAPL
 ticker GE

returns a true/false

## total-across

total-across
The total across operator calculates and returns the sum a property or term across an entire set of stocks such as industry or market or etc.
 total of ( change of Close over 1.0 days ) across Sector where (Market_Cap > 1m)
1. After across in the operator you will specify which set of stocks are include.
2. After where in the operator you will define constraints that a stock must pass in order to be included.

returns a number

value x, y, …

## variance

variance x, y, …
The variance operator returns the population variance values you enter into it. Variance measures the spread of values in the dataset; a high variance indicates a great distance between values.
Press Control + Shift + A to add an additional term, or input a comma into the entry box.

returns a number

## variance-across

variance X across
The variance across operator returns the variance of a value across any set of stocks such as industry, sector, or the entire market. Variance measures the spread of values in the dataset; a high variance indicates a great distance between values.
1. After across you will specify which set of stocks to have the variance calculated on
2. After where in the operator you will define constraints that a stock must pass in order to be included in the variance.

returns a number

## variance-since

variance X since mm/dd/yyyy
Returns the population variance for a given property since a given date. Variance measures the spread of values in the dataset; a high variance indicates a great distance between values.

returns a number

## variance-within

variance X within n days
Returns the population variance of the given property within n trading days. Variance measures the spread of values in the dataset; a high variance indicates a great distance between values.
returns a number

## weighted-average-across

weighted average of PROPERTY
The weighted average across operator returns an average of a specified value across any set of stocks stock as industry, large-caps, etc. weighted by a specified value.
 weighted average of Relative Strength across Industry weighted by Market Cap where ( P/E > 5)
• After across, specify which set of stocks are included in the average.
• After weighted by, specify what value defies the weight.
• After where, specify the constraints that a stock must pass in order to be included.

returns a number

## when-since

X when Y since mm/dd/yyyy
The When Since Operator returns the value of a property or formula while another condition is true, since a certain date.
 change of Close over 10.0 days when (Net_Income_1Q > 0.0) since Tue Jan 01 2013

returns a number

## when-within

X when Y within last n days
The When Within Operator returns the value of a property or formula while another condition is true, within X number of days.

returns a number

## zscore-across

zscore X across
zscore across returns the zscore of a value across any set of stocks such as industry, sector, or the entire market. The z-score is the number of standard deviations above or below the mean the given value is. After across in the operator you will specify which set of stocks to have the zscore calculated on, and after where in the operator you will define constraints that a stock must pass in order to be included in the zscore.
returns a number

## zscore-since

zscore of X since mm/dd/yyyy
zscore since returns the zscore of a value since a specific date. The z-score is the number of standard deviations above or below the mean the given value is. After since in the operator you will specify the date.
returns a number

## zscore-within

zscore of X within last n days
The zscore within the last n days. The zscore is the number of standard deviations above or below the mean the given value is, using the values within the given span.
returns a number
1. Volume ÷ (average Volume within 20.0 days[]
2. Close ÷ (Close as of 3.0 days ago[]
3. change of Net Income 1Q over 1y days) > 20) ((change of EPS 1Q over 1y days) > 0) (Dividend Yield > 0.05)

returns a number

## odds-across

odds-across
The odds across operator returns the percentage odds that a stock passes a condition that you enter into the operator. For example, odds that a stock in the technology sector has greater sales than it did 1Q ago.
• After across in the operator you will specify which set of stocks are included
• After where in the operator you will define constraints that a stock must pass in order to be included.
 odds of ((average Close within 10.0 days) > (average Close within 21.0 days[↩]Market_Cap > 1000.0) where ((Market_Cap > 1000.0)

returns a number

## odds-since

odds of X since mm/dd/yyyy
The odds since operator returns the odds (from 0 to 100) that the stock passes the condition that you enter into the operator since a date in the past.
 odds (Open > Close) since Fri Jan 01 2010

returns a number

## odds-within

odds of X within last n days
The odds within operator returns the odds (from 0 to 100) that the stock passes the condition that you enter into the operator within X days.
 odds (Close > (Close as of 4.0 days ago[↩]Market_Cap > 10b)

returns a number

## percentile-since

percentile X since mm/dd/yyyy
The percentile since operator gives you the median of the percentile values of a property since a date in the past.
If you put 0, it would give you the minimum, and it would give you the maximum if you put 100. It is useful to measure how values are changing over time or to measure where a property value stands in comparison to other property values in the past.

Close at the 90 percentile since 01/01/2010 < Close

#### Stock Screener Example

Close at the 50 percentile Since 01/01/2010 > Close at the 50 Percentile Since 01/01/2008
returns a number

## percentile-within

percentile X within n days
The percentile within operator gives the value of Xth percentile of whichever property you desire within X number of trading days.

### Example

High at the 50 percentile within 100 days

returns a number

## position-across

position-across
The position across operator returns an integer from 1 to infinity that represents what position the stock is in based on your value across a set of stocks such as industry or sector or mid caps.
For instance, If you want the top 10 market cap companies in each Industry:
 position of Market_Cap across Industry where ((Close > 0.0) and (Market_Cap > 0.0[↩]MarketCap > 500m[↩]Close ÷ (Close as of 3.0 days ago[↩][↩] .is-menu path.search-icon-path { fill: #848484;}body .popup-search-close:after, body .search-close:after { border-color: #848484;}body .popup-search-close:before, body .search-close:before { border-color: #848484;}Search for: