Expected move calculator

The expected move is the range the options market is pricing for a stock over a set number of days. Enter the price, the at-the-money implied volatility and the days to see it.

±$16.27
Expected move
$753.73
Low
$786.27
High

±2.11% over 5 trading days. One standard deviation: roughly two outcomes in three land inside it.

Want it already worked out? Every ticker's page has its expected move from the latest close, for example SPY, QQQ and NVDA, or the biggest expected moves today.

Common questions

How is the expected move calculated?

Price × implied volatility × √(trading days ÷ 252). With a $100 stock and 20% IV, the one-day move is about ±$1.26.

What does the expected move mean?

It is a one-standard-deviation range the options market is pricing. Roughly two outcomes in three land inside it; a third land outside.

Which implied volatility should I use?

At-the-money IV for the expiration you care about. Each ticker's page on FlowMonkey shows the at-the-money IV and expected move from the latest close.