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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 · GRMN

As of 2026-08-20
Put/Call Volume Ratio
0.12
Call-dominant · bullish sentiment
Put/Call OI Ratio
0.68
Cumulative positioning sentiment
Front-month ATM Implied Volatility
26.9%
Market-expected move
Contracts / Expirations
179
4 expirations
CallStrikePut
OIVolIVBidAskStrikeBidAskIVVolOI
–––––185.000.001.4553.2%02
–––––190.000.001.4550.3%03
–––––195.000.001.4547.3%01
–––––200.000.001.4544.4%02
–––––210.000.000.7539.5%02
–––––220.000.000.7534.7%08
–––––240.000.000.9524.9%022
28036.6%43.0046.10250.000.001.7520.0%08
37032.7%33.4036.50260.000.201.4030.8%228
8028.8%24.0027.30270.001.152.0527.8%17
9127.8%16.0019.00280.002.404.1025.9%026
7326.9%9.6012.20290.005.307.9025.9%7113
331226.9%5.007.50300.0010.9013.4026.9%270
16610826.9%2.204.30310.0017.9020.5026.9%093
72026.9%0.552.45320.0026.1029.3027.8%02
147925.9%0.300.85330.0035.5038.1028.8%01
10018.1%0.001.15340.0045.2048.1032.7%01
152121.0%0.000.75350.0055.1058.5039.5%05
3023.9%0.000.75360.00–––––
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.