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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 · GSK

As of 2026-08-20
Put/Call Volume Ratio
1.08
Neutral
Put/Call OI Ratio
0.61
Cumulative positioning sentiment
Front-month ATM Implied Volatility
16.1%
Market-expected move
Contracts / Expirations
174
9 expirations
CallStrikePut
OIVolIVBidAskStrikeBidAskIVVolOI
10217.1%16.5018.9035.00–––––
–––––41.000.000.9564.9%02
–––––42.000.001.1559.0%02
–––––43.000.001.2053.2%04
–––––44.000.000.9547.3%01
–––––45.000.000.1041.5%02
–––––46.000.000.7536.6%02
–––––47.000.000.3030.8%026
2053.2%2.556.1048.00–––––
–––––48.500.000.7522.0%025
1040.5%2.603.9049.000.000.2019.0%214
1053.2%1.904.4049.500.000.2016.1%04
418041.5%2.052.9550.000.100.3529.8%168
148026.9%1.301.5051.000.000.457.3%3113
159419.0%0.151.0552.000.150.8516.1%197
39434.7%0.350.9553.001.051.5522.0%9114
68013.2%0.000.3054.00–––––
39018.1%0.000.2055.001.904.1016.1%01
26023.0%0.000.7556.00–––––
154027.8%0.000.9557.00–––––
1032.7%0.000.0558.005.907.6086.4%01
14036.6%0.000.7559.006.908.6094.2%20
1040.5%0.000.7560.007.709.6096.1%01
–––––61.007.5010.7064.9%201
–––––62.009.7010.7080.5%104
–––––63.0010.8011.3067.8%100
–––––65.0012.9014.00116.6%40
–––––70.0017.9019.60163.4%40
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.