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EOD US-equity data for investors and AI agents

Data is end-of-day, not real-time, and not investment advice

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Options · ATO

As of 2026-08-20
Put/Call Volume Ratio
0.89
Neutral
Put/Call OI Ratio
0.82
Cumulative positioning sentiment
Front-month ATM Implied Volatility
18.1%
Market-expected move
Contracts / Expirations
74
3 expirations
CallStrikePut
OIVolIVBidAskStrikeBidAskIVVolOI
–––––150.000.002.1517.1%21
–––––155.000.002.2513.2%01
–––––160.000.001.609.3%011
3019.0%6.408.30165.000.902.5521.0%09
01315.1%3.003.90170.002.553.4018.1%915
6215.1%0.851.90175.004.906.8018.1%03
1020.0%0.101.80180.008.9011.2021.0%01
5011.2%0.002.15185.00–––––
4014.2%0.002.15190.00–––––
Click a call or put in the chain to see its history.

Source: Alpha Vantage options chain EOD (incl. greeks / IV / open interest). Contracts with low liquidity, far expirations (>180 days), and deep out-of-the-money strikes (±50%) are filtered out. P/C ratios are aggregated across the full chain.