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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 · ONTO

As of 2026-08-20
Put/Call Volume Ratio
1.55
Put-dominant · hedging/bearish
Put/Call OI Ratio
0.51
Cumulative positioning sentiment
Front-month ATM Implied Volatility
72.7%
Market-expected move
Contracts / Expirations
159
4 expirations
CallStrikePut
OIVolIVBidAskStrikeBidAskIVVolOI
18099.0%147.40151.40150.000.002.3077.6%034
260108.8%142.70146.60155.000.002.3074.7%07
20099.0%137.50141.60160.000.002.3570.8%0124
150100.0%132.80136.60165.000.002.4067.8%05
2077.6%127.50131.30170.000.002.4563.9%076
112086.4%122.70126.50175.000.002.5061.0%09
64087.3%117.80121.70180.000.101.80101.0%086
53082.5%112.90116.60185.000.151.5594.2%04
2074.7%108.00111.30190.000.001.2552.2%081
9071.7%103.10106.30195.000.350.8079.5%315
40070.8%98.20101.40200.000.453.0093.2%257
84072.7%88.7091.90210.000.302.5580.5%082
21072.7%79.3082.70220.001.152.7577.6%074
133073.7%70.4073.80230.001.354.1074.7%1622
149072.7%61.7065.10240.003.205.5075.6%1629
286070.8%53.5056.40250.005.306.5073.7%489
106070.8%46.0048.80260.007.409.0072.7%0130
96071.7%39.0042.50270.0010.8012.0072.7%1193
57071.7%32.8035.70280.0014.5015.6072.7%167
47070.8%27.1029.90290.0018.8020.2072.7%0116
153070.8%22.2025.10300.0022.9025.2070.8%886
4931469.8%17.9020.40310.0028.9031.8072.7%0547
419170.8%14.8016.70320.0035.5038.3073.7%163
208271.7%11.4014.30330.0042.3044.9072.7%025
3291070.8%9.3010.90340.0048.9052.3071.7%013
110669.8%6.508.90350.0057.0060.2072.7%05
253168.8%4.907.00360.0065.9068.7074.7%085
86069.8%3.605.70370.0073.5077.2072.7%02
138074.7%3.405.60380.0082.8086.1073.7%04
2741274.7%2.554.80390.0092.3095.4075.6%024
269073.7%1.903.50400.00–––––
71076.6%1.203.70410.00111.00114.4078.6%04
126277.6%0.903.20420.00–––––
201075.6%0.851.95430.00–––––
72043.4%0.003.20440.00139.70143.6082.5%01
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.