Data through close

RSP gamma max, delta neutral & open interest levels

As of close · rank #295 by open interest · 1,379 sessions of history since Dec 1, 2020

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Close
214.87
prev 213.17
Gamma max
222.05
+3.3% from close
Delta neutral
217.67
+1.3% from close
Gamma neutral
218.86
+1.9% from close
Open interest
333,874
+1.3% vs prev
Contracts listed
572
319 calls · 309 puts

RSP closed 3.3% below its gamma max of 222.05. It is 1.3% below the delta neutral price of 217.67. Total open interest is 333,874, +1.3% versus the previous session. What gamma max means · What delta neutral means

One-year history

2025-092026-09
close delta neutral gamma max

Last 252 sessions

Sessions closed above gamma max3%
Gamma max crosses10
Delta neutral crosses27
Open interest percentile (1y)72th
Open interest change, 5 sessions+0.1%
Open interest change, 21 sessions-2.1%
History availableDec 1, 2020 → Sep 11, 2026

Recent crosses

  1. closed below delta neutral at 216.73 vs 218.18 (-0.7%)
  2. closed above delta neutral at 219.00 vs 218.57 (+0.2%)
  3. closed below delta neutral at 217.61 vs 219.90 (-1.1%)
  4. closed below gamma max at 220.28 vs 222.29 (-0.9%)
  5. closed above gamma max at 222.07 vs 221.83 (+0.1%)
  6. closed below gamma max at 220.79 vs 222.17 (-0.6%)
  7. closed above gamma max at 222.73 vs 222.08 (+0.3%)
  8. closed above delta neutral at 217.11 vs 215.83 (+0.6%)
  9. closed below delta neutral at 215.01 vs 215.68 (-0.3%)
  10. closed above delta neutral at 203.83 vs 203.33 (+0.2%)

In today's screens

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Neighbours by open interest

Questions people ask about RSP

Where is RSP's gamma max today?

As of Sep 11, 2026, the gamma max for RSP is 222.05, +3.3% from the 214.87 close. Gamma max is the underlying price at which the summed gamma of every open contract is largest; how it is computed and why it matters.

Is RSP above or below its delta neutral price?

RSP closed below delta neutral: 214.87 against a delta neutral price of 217.67. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does RSP have?

333,874 contracts of open interest across 572 listed contracts on Sep 11, 2026, +1.3% versus the previous session. What open interest measures.

Levels are recomputed after every trading day from end-of-day options data licensed from HistoricalOptionData.com; only derived aggregates are published. Methodology · Data and licence · Not investment advice.