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Stockfacts

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 · ALNY

As of 2026-08-20
Put/Call Volume Ratio
0.47
Call-dominant · bullish sentiment
Put/Call OI Ratio
0.69
Cumulative positioning sentiment
Front-month ATM Implied Volatility
46.4%
Market-expected move
Contracts / Expirations
150
4 expirations
CallStrikePut
OIVolIVBidAskStrikeBidAskIVVolOI
2076.6%73.2077.40155.000.003.0047.3%020
–––––160.000.003.6043.4%03
–––––165.000.003.6039.5%022
1062.9%58.3062.50170.000.000.9536.6%113
–––––175.000.001.8533.7%010
–––––180.000.003.8029.8%029
1057.1%44.4048.00185.000.003.9026.9%06
16053.2%39.7043.00190.000.004.1023.9%2088
19051.2%35.1038.40195.000.004.3021.0%0207
884350.3%30.3034.50200.001.102.4544.4%10458
53048.3%22.5026.50210.003.604.7046.4%6199
4091147.3%15.4019.50220.005.609.4046.4%224140
7676446.4%10.8013.30230.0010.8013.5047.3%28555
5091244.4%5.509.20240.0015.5019.5045.4%3265
1,375444.4%2.856.20250.0022.2026.5043.4%2181
190044.4%0.305.00260.0030.8033.6042.5%0151
644020.0%0.003.30270.0039.8042.6042.5%0486
1271823.9%0.002.15280.0049.1052.3044.4%029
283027.8%0.002.00290.0058.4062.7049.3%0600
279031.7%0.002.15300.0068.5072.6055.1%0350
607035.6%0.003.90310.00–––––
241038.6%0.002.50320.00–––––
82141.5%0.002.75330.00–––––
337045.4%0.005.00340.00108.50112.6076.6%0197
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.