OEX Open Interest

OEX has 11 call contracts and 7 put contracts open across all listed expirations — a put/call open interest ratio of 0.64. Open interest counts the contracts currently outstanding at each strike. This page shows where OEX positioning concentrates, which strikes act as walls, and how the totals have trended over the past year.

Data as of Jul 11, 2026, 7:37 AM ET · OPRA data 15 minutes delayed · For information only — not investment advice.

Last close
$3,728.99
52-week range
$3,073.81 – $3,782.93
ATM IV (30d)
29.1%
IV rank
42 / 100
Moderate
Expected move
±$260.03 (±7.0%)
Put/call OI
0.64
Call-heavy
Max pain
$3,500
↓ 6.1% below close

OEX Open Interest by Strike

01.73.35SpotMax painCall wallPut wall29503000330035003600365037003720

OEX open interest by strike, all expirations combined — calls in green, puts in red.

Total call open interest11
Total put open interest7
Put/call OI ratio0.64
Open interest rank (31 day)18 / 100
Call wall (largest call OI)$3,650
Put wall (largest put OI)$3,600

OEX Open Interest Trend

015.330.645.861.1Call OIPut OIFeb '26May '26Jul '26

OEX total call vs. put open interest, past year.

0.000.851.702.553.40Feb '26May '26Jul '26

OEX put/call open interest ratio, past year.

A put/call open interest ratio of 0.64 means meaningfully more calls than puts are outstanding — a call-heavy, typically bullish positioning profile. In total, 11 call contracts and 7 put contracts are open across all listed expirations. The put/call OI ratio has risen from 0.32 in Feb '26 to 0.64 today.

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OEX Options FAQ

What is OEX's put/call ratio?

OEX's put/call open interest ratio is 0.64 as of Jul 11, 2026, with 7 put contracts and 11 call contracts outstanding.

Which OEX strikes have the highest open interest?

As of Jul 11, 2026, the largest call open interest sits at $3,650 (the call wall) and the largest put open interest sits at $3,600 (the put wall). Strikes with heavy open interest often act as reference levels because a lot of hedging activity is anchored to them.

Is OEX open interest unusually high right now?

OEX's total open interest ranks 18 out of 100 versus the past 31 trading days as of Jul 11, 2026 — toward the bottom of its recent range, so positioning is comparatively light.

Methodology. IV rank compares the current 30-day at-the-money implied volatility with its highest and lowest values over the past 52 weeks. Max pain is the strike that minimizes the total payout to option holders at expiration. The call and put walls are the strikes carrying the largest call and put open interest across all expirations. Net gamma exposure (GEX) is measured from the dealer perspective. All statistics are derived from delayed OPRA options data.

Options trading involves significant risk, and losses can exceed your initial investment. Always consult a licensed financial professional before making investment decisions. OptiView does not provide financial advice; all figures on this page are descriptive statistics, not recommendations.