Formulas > =STEYX()

How To Use STEYX() Function in Google Sheets


Calculates the standard error of the predicted y-value for each x in the regression of a dataset.

Common Questions About the STEYX Formula:

• What exactly is the STEYX formula?
• How does the STEYX formula work?
• How can it be used to calculate a stock's return?
• How can it be used to compare the performance of multiple stocks?

How Can The STEYX Formula Be Used Appropriately?
• To calculate the total returns of equities portfolios.
• To estimate the volatility/risk of stocks.
• To analyze the performance of a given portfolio over time.
• As a tool for identifying the optimal portfolio.

How Can The STEYX Formula Be Commonly Mistyped?
• STEYX instead of STDEYX.
• STEYY instead of STDEYX.
• STEXX instead of STDEYX.
• STEY instead of STDEYX.

What Are Some Common Ways the STEYX Formula Is Used Inappropriately?
• Using percentages instead of decimal exposures in the formula.
• Trying to calculate an average return for a portfolio when using STEYX.
• Using the formula to analyze the stock performance of a single company.
• Trying to use the formula to predict future stock performance.

What Are Some Common Pitfalls When Using The STEYX Formula?
• Not correcting for bias due to serial correlation.
• Using the formula without having done other analysis to confirm the logic of the results.
• Not properly accounting for differences in the methods used to calculate returns.
• Not having reliable data for the calculations.

What Are Common Mistakes When Using The STEYX Formula?
• Entering incorrect values for the weights or returns.
• Not taking into account the time frame when doing calculations.
• Not considering dividends and other payouts when calculating returns.
• Entering incorrect information for the number of periods in a portfolio.

What Are Common Misconceptions People Might Have With the STEYX Formula?
• That the STEYX return is the same as the total return of a portfolio. 
• That the STEYX formula is the only way to calculate a portfolio’s risk and return. 
• That the STEYX formula can be used to predict future returns. 
• That the STEYX formula is a guarantee of a portfolio’s performance.

How To Actually Use STEYX() in Sheets

STEYX(data_y, data_x)

Looking for a video tutorial? Members can email me anytime! Check out the blogs below for more info on this formula. Or generate your formula. Find more formulas here at

Learn more about the STEYX() formula:

LINEST, INTERCEPT, SLOPE, STEYX, COVAR, VARP, and Regression Sum of Squares using Google Sheets

LINEST, INTERCEPT, SLOPE, STEYX, COVAR, VARP, and Regression Sum of Squares

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