ImpliedVolatility20d: Retrieve 20-Day Implied Volatility in Excel

The ImpliedVolatility20d function from MarketXLS helps you quickly retrieve the 20-day implied volatility for a given stock symbol. This is particularly useful for traders and investors analyzing the expected fluctuation range of a stock’s price over the coming 20 trading days. By optionally specifying a start date, you can view historical 20-day implied volatilities, enabling deeper trend analyses and strategy refinements.

Why Use This Function?

• Gain immediate insight into a stock’s short-term volatility expectations.
• Enhance options trading strategies by comparing implied volatilities across multiple stocks.
• Evaluate historical implied volatility to detect unusual shifts or consistent seasonal patterns.
• Combine up-to-date market data with your existing analytics, all within Excel for streamlined workflows.
• Useful for risk assessment, hedging strategies, and identifying potential premium pricing in options.

How to Use in Excel

=ImpliedVolatility20d(Symbol, [StartDate])

• Symbol (required): Specify the stock ticker symbol (e.g., "AAPL").
• StartDate (optional): Provide a date to retrieve 20-day implied volatility data as of that specific date. If omitted or less than the year 1978, recent market data is fetched.

1. Open Excel with MarketXLS enabled.
2. In any cell, type the formula =ImpliedVolatility20d("AAPL").
3. Press Enter to get the 20-day implied volatility for AAPL.
4. Optionally, to retrieve historical data from January 20, 2023, use =ImpliedVolatility20d("AAPL", "1/20/2023").

Parameters Explained

Example Usage

Basic Examples

1. Retrieve the current 20-day implied volatility for Apple:
   =ImpliedVolatility20d("AAPL")

2. Retrieve the current 20-day implied volatility for Microsoft:
   =ImpliedVolatility20d("MSFT")

3. Retrieve historical 20-day implied volatility for Apple as of January 20, 2023:
   =ImpliedVolatility20d("AAPL", "1/20/2023")

• These formulas automatically connect to MarketXLS servers and return the 20-day implied volatility.
• If the data is being refreshed, the function may temporarily return "Refreshing."

Advanced Scenarios

• Historical Sweep:

• Create a column of dates in Excel and reference them with the ImpliedVolatility20d function to chart how volatility has changed over time for a given symbol.
• Example: =ImpliedVolatility20d($A$1, B2) where A1 is "AAPL" and B2 is a date in a list of historical dates.

• Strategy Assessment:

• Combine ImpliedVolatility20d with other MarketXLS data (e.g., option greeks) to construct advanced hedging or spread strategies in Excel.
• Example: If you see a spike in implied volatility for a symbol historically on specific dates (e.g., earnings announcements), you can plan volatility-based plays accordingly.

• Integration with Other Excel Functions:

• Use IFERROR or conditional checks alongside ImpliedVolatility20d to manage cases where data may temporarily be unavailable or refreshing.
• Example: =IFERROR(ImpliedVolatility20d("GOOG", "2/15/2023"), "Data Pending")

Common Questions and Troubleshooting

• Why am I getting "NA"?

• The symbol might be invalid. Double-check the ticker.
• Your license might be invalid or expired. Renew or validate your MarketXLS license.
• There could be a temporary server or connectivity issue.

• Why am I seeing "Refreshing"?

• The data is being updated in the background. Wait a few seconds and recalculate or refresh to get updated results.

• Does this function require an internet connection?

• Yes. ImpliedVolatility20d relies on real-time or cached data from MarketXLS servers.

• What if I need historical data for an older date?

• As long as the date is from 1978 onward and is available in the MarketXLS database, pass it as StartDate to retrieve that date’s implied volatility. If data for that date does not exist, “NA” is returned.

Staying informed about implied volatility is essential for projecting market sentiment and risk. Using ImpliedVolatility20d in Excel lets you combine real-time or historical volatility data with your investment logic, providing a powerful toolset for traders and analysts alike.