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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 · TWST

As of 2026-08-20
Put/Call Volume Ratio
0.23
Call-dominant · bullish sentiment
Put/Call OI Ratio
0.28
Cumulative positioning sentiment
Front-month ATM Implied Volatility
77.6%
Market-expected move
Contracts / Expirations
125
3 expirations
CallStrikePut
OIVolIVBidAskStrikeBidAskIVVolOI
–––––70.000.002.1580.5%0244
101.5%59.3063.6075.00–––––
3098.1%54.9058.8080.000.000.5564.9%02
1090.3%50.0053.8085.000.002.3558.1%14
11103.9%48.5051.4087.500.000.6055.1%01
1098.1%45.9049.0090.00–––––
1082.5%42.5046.7092.500.002.7548.3%01
3084.4%40.4044.3095.000.002.9045.4%04
1085.4%38.2042.0097.50–––––
18091.2%36.7039.80100.000.003.0039.5%054
503289.3%32.4035.40105.000.103.5082.5%010
13388.3%28.3031.40110.000.454.6080.5%0103
8084.4%23.9027.50115.001.854.9078.6%102
7586.4%21.0023.90120.003.005.5073.7%5020
5084.4%17.5020.60125.004.808.5079.5%07
9285.4%14.9017.70130.006.8010.7079.5%460
10383.4%12.0015.20135.009.4012.5077.6%862
281085.4%10.2013.10140.0012.2015.2077.6%62
109287.3%8.7011.20145.0015.4018.3077.6%76
101187.3%7.109.60150.0018.6022.3079.5%26
62083.4%4.608.20155.00–––––
6283.4%3.307.10160.0026.2029.5079.5%2550
1184.4%2.606.10165.00–––––
1285.4%2.005.30170.00–––––
235286.4%2.303.70175.00–––––
03185.4%0.604.10180.00–––––
0189.3%0.753.70185.00–––––
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.