State Street SPDR S&P 500 ETF Trust (SPY) IV/HV History

Comparing implied volatility to historical (realized) volatility reveals whether options are priced rich or cheap relative to actual price movement. Persistent gaps can signal trading opportunities.

Snapshot as of Apr 21, 2026.

Spot Price

$703.36

ATM IV

17.3%

Put/Call Ratio

1.23

As of Apr 21, 2026, State Street SPDR S&P 500 ETF Trust (SPY) ATM implied volatility is 17.3%.