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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 · ALSN

As of 2026-08-20
Put/Call Volume Ratio
0.03
Call-dominant · bullish sentiment
Put/Call OI Ratio
0.51
Cumulative positioning sentiment
Front-month ATM Implied Volatility
27.8%
Market-expected move
Contracts / Expirations
93
4 expirations
CallStrikePut
OIVolIVBidAskStrikeBidAskIVVolOI
–––––90.000.002.1545.4%013
–––––95.000.002.2039.5%05
101.5%27.3030.60100.000.001.5533.7%05
401.5%22.2025.70105.000.002.5027.8%03
301.5%17.4020.70110.000.002.3522.0%04
1101.5%12.7015.90115.000.152.4042.5%03
2026.9%9.0011.50120.001.003.4041.5%05
28130.8%6.407.50125.002.455.0039.5%03
73027.8%2.704.80130.004.606.4035.6%01
3626.9%0.753.00135.00–––––
23011.2%0.002.00140.00–––––
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.