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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 · ARDX

As of 2026-08-20
Put/Call Volume Ratio
7.83
Put-dominant · hedging/bearish
Put/Call OI Ratio
3.51
Cumulative positioning sentiment
Front-month ATM Implied Volatility
47.3%
Market-expected move
Contracts / Expirations
20
3 expirations
CallStrikePut
OIVolIVBidAskStrikeBidAskIVVolOI
370370.3%1.353.302.000.000.15123.4%03
60447.3%0.050.304.000.150.3038.6%51341
7271,20150.3%0.000.055.000.601.201.5%0130
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.