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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 · BIIB

As of 2026-07-09
Put/Call Volume Ratio
0.31
Call-dominant · bullish sentiment
Put/Call OI Ratio
0.73
Cumulative positioning sentiment
Front-month ATM Implied Volatility
62.9%
Market-expected move
Contracts / Expirations
386
10 expirations
CallStrikePut
OIVolIVBidAskStrikeBidAskIVVolOI
–––––100.000.000.10430.7%08
–––––105.000.000.10401.5%02
–––––110.000.000.10374.2%03
–––––115.000.000.10347.8%03
–––––120.000.000.10322.5%02
–––––125.000.000.10298.1%05
–––––130.000.000.10274.7%01
–––––145.000.002.15208.3%022
–––––150.000.002.05187.8%14
–––––170.000.002.15109.8%07
–––––175.000.001.4591.2%03
11123.4%17.6020.90180.00–––––
–––––185.000.001.4055.1%02
–––––187.500.001.2045.4%02
–––––190.000.001.5536.6%01
–––––192.500.002.0026.9%12
11169.8%3.806.70195.000.250.9548.3%8999
–––––197.500.803.1062.9%27
8239.5%0.302.00200.000.703.7038.6%059
3216.1%0.003.10202.502.505.2033.7%028
671067.8%0.101.50205.004.507.401.5%045
2133.7%0.001.75207.507.209.401.5%015
6041.5%0.002.30210.009.3011.901.5%06
214050.3%0.000.35212.5011.7014.501.5%04
85058.1%0.001.00215.0014.2017.601.5%01
466164.9%0.000.05217.50–––––
49072.7%0.001.20220.00–––––
12079.5%0.001.35222.50–––––
8087.3%0.002.15225.00–––––
25094.2%0.001.75227.50–––––
50101.0%0.002.15230.00–––––
10107.8%0.002.15232.50–––––
100113.7%0.002.15235.00–––––
20126.4%0.002.15240.00–––––
10150.8%0.002.15250.00–––––
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.