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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 · BSX

As of 2026-08-20
Put/Call Volume Ratio
0.31
Call-dominant · bullish sentiment
Put/Call OI Ratio
0.47
Cumulative positioning sentiment
Front-month ATM Implied Volatility
37.6%
Market-expected move
Contracts / Expirations
321
10 expirations
CallStrikePut
OIVolIVBidAskStrikeBidAskIVVolOI
60292.2%19.2021.6030.00–––––
–––––33.000.000.20105.9%01
10192.7%14.3015.8035.000.000.7592.2%037
–––––36.000.001.0085.4%018
–––––37.000.000.9578.6%012
50132.2%10.6012.9038.000.000.7571.7%045
20126.4%9.7011.9039.000.000.2564.9%0144
151141.0%9.3011.0040.000.000.3059.0%027
150102.0%7.609.9041.000.000.2053.2%056
15087.3%6.508.9042.000.000.2046.4%0151
26085.4%5.707.9043.000.000.3040.5%0132
13089.3%5.206.9044.000.000.7534.7%020
170078.6%4.305.8045.000.000.7528.8%0170
224057.1%3.404.3046.000.000.5023.0%023
–––––46.500.000.2520.0%221
23063.9%2.554.0047.000.000.3017.1%5116
10062.9%2.153.7047.500.250.4035.6%29
43052.2%1.802.8048.000.350.5033.7%6530
17543.4%1.551.9548.500.501.5048.3%5240
351840.5%1.151.6049.000.701.0035.6%30464
1237.6%0.901.2049.500.952.0049.3%1591,803
18711936.6%0.700.9050.001.201.4533.7%3502,272
958637.6%0.400.6051.001.852.9049.3%33228
41718538.6%0.200.4052.002.502.9529.8%2073
56215222.0%0.000.2553.003.403.9030.8%2720
1806926.9%0.000.2054.004.204.801.5%04
2933631.7%0.000.1555.005.106.3048.3%26
70136.6%0.000.7056.006.206.901.5%620
40040.5%0.000.7557.006.307.801.5%020
181045.4%0.000.1558.007.308.801.5%80
12049.3%0.000.1059.008.309.801.5%40
263153.2%0.000.2060.008.5010.801.5%40
–––––61.0010.3011.801.5%40
–––––62.0011.3014.1088.3%20
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.