Implied Move Calculator
Use option chain data (e.g. ATM straddle price) or implied volatility to compute the market's expected price range by expiration. Pure frontend; no data is sent to a server.
Used only when solving IV from straddle price.
Sum of ATM call + ATM put (same expiration).
Implied Volatility
1σ Expected Move
Expected Price Range (1σ)
~68% probability price at expiry is in this range
The 1σ move is computed as Spot × σ × √T. When using the straddle, IV is solved from the ATM straddle (call + put) via Black-Scholes, then converted to this price range.
What Is Implied Move?
Implied move is the market's expected price range for the underlying by option expiration. It is derived from option prices—typically the at-the-money (ATM) straddle (call + put)—and reflects one standard deviation of expected movement. This calculator converts that expectation into a dollar and percentage range so you can plan targets, stops, or volatility trades.
How to Use This Calculator
- Choose input: Use "ATM Straddle Price" if you have option chain data (add ATM call + put mid), or "Implied Volatility" if you already have IV.
- Enter spot and days: Current stock (or underlying) price and days until expiration.
- Risk-free rate: Only used when solving IV from the straddle (e.g. 5%).
- Read the result: Implied volatility, 1σ move in dollars and percent, and the expected price range (low–high).
Why Use Implied Move?
- Earnings and events: See the range the market is pricing in; compare to your view to trade straddles, strangles, or iron condors.
- Targets and stops: Use the 1σ range as reference levels for take-profit or stop-loss.
- Volatility assessment: Compare implied move to historical move to gauge whether options are cheap or expensive.
Disclaimer: This tool is for educational purposes only. The implied move is based on Black-Scholes assumptions (e.g. log-normal returns, constant volatility) and does not guarantee where the price will be at expiration.
Related Tools
Implied Volatility Calculator
Estimate the expected future volatility of a security's price from option prices.
Straddle & Strangle Calculator
Analyze the profit and loss potential of straddle and strangle options strategies.
Black-Scholes Calculator
Calculate European call and put option prices with the Black-Scholes model. Get instant theoretical valuations and all five Greeks — Delta, Gamma, Theta, Vega, Rho.
Options Profit Calculator
Visualize and calculate the maximum profit, loss, and breakeven points for any options strategy.
Volatility Calculator
Measure the historical volatility of a financial instrument.
Turn Expected Move Into Strategy
Use the implied range to size trades and manage risk. Build options strategies and Pine Script indicators with Pineify's AI—straddles, strangles, and volatility plays—in seconds.