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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 · ZLAB

As of 2026-08-20
Put/Call Volume Ratio
0.50
Call-dominant · bullish sentiment
Put/Call OI Ratio
4.30
Cumulative positioning sentiment
Front-month ATM Implied Volatility
52.2%
Market-expected move
Contracts / Expirations
40
3 expirations
CallStrikePut
OIVolIVBidAskStrikeBidAskIVVolOI
10119.5%8.9013.5015.000.001.0079.5%054
1089.3%6.4011.0017.500.002.5559.0%0164
16068.8%4.008.5020.000.002.9041.5%0117
2701.5%2.004.3022.500.004.5024.9%06
248152.2%1.302.9025.000.301.2042.5%128
24023.0%0.001.1030.00–––––
14143.4%0.002.3035.006.5011.3047.3%01
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.