Data through close

CORN max pain, gamma exposure (GEX) & options open interest

As of close · rank #517 by open interest · 1,404 sessions of history since Dec 1, 2020

CORN's nearest-expiration max pain is 17.00 for 2026-11-20, net GEX is 10,593,321, its put/call open-interest ratio is 0.05. These are whole-chain derived aggregates as of Oct 16, 2026 close.

CORN max pain and GEX snapshot

End-of-day snapshot for . Nearest-expiration max pain uses the expiry shown on its card; GEX uses the whole chain. Missing values are unavailable, not zero.

Nearest-expiration max pain
17.00
-6.5% from close
Expiry: 2026-11-20
GEX flip
–
Net GEX
10,593,321
8,050,921 per 100k OI
Call wall
20.00
+10.0% from close
Put wall
19.00
+4.5% from close
Put/call OI
0.05
6,353 puts / 125,226 calls

Prices are in US dollars per share. Net GEX is modeled dollar-delta change per $1 underlying move. Max pain minimizes aggregate intrinsic payout for that expiration; it is not a closing-price forecast. Signed GEX uses calls positive and puts negative, a model convention rather than observed dealer inventory. The flip is a confirmed zero crossing; walls locate side-specific concentrations, not guaranteed support or resistance.

Learn how to read the max pain payout example, GEX chart, gamma flip and walls, and open interest versus trading volume.

Close
18.19
prev 18.35
Gamma max
19.79
+8.8% from close
Delta neutral
16.79
-7.7% from close
Gamma neutral
18.19
0.0% from close
Open interest
131,579
-1.1% vs prev
Contracts listed
86
82 calls · 26 puts

Advanced options analysis

Public aggregate analysis from the dated chain, normalized where possible for comparison across tickers. Catalyst intensity measures unusual pricing and activity; it does not identify an event, predict direction, or establish that an investment is attractive.

Catalyst intensity
47.3
cross-sectional score / 100
Directional score
36.2
relatively bullish positioning
IV rank
100.0
within trailing 52-week range
Front IV premium
0.0 pp
front minus back volatility difference
25Δ risk reversal
-2.8 pp
put IV minus call IV
IV butterfly
-1.7 pp
front-window smile convexity
Volume / open interest
0.01
1,296 contracts traded
Normalized net delta
0.339
option-holder convention
Modeled dealer delta
-0.332
opposite-side scenario
Vanna / 100k OI
-20
volatility-sensitive delta
Charm / 100k OI
-4,316,926
time-decay-sensitive delta
IV surface range
247.1 pp
aggregate volatility dispersion

Strongest relative signals: IV rank 100

Download the dated aggregate analysis JSON .

CORN closed 8.8% below its gamma max of 19.79. It is 7.7% above the delta neutral price of 16.79. Total open interest is 131,579, -1.1% versus the previous session. Its options catalyst-intensity score is 47.3 out of 100, led by IV rank 100. What gamma max means · What delta neutral means

Call versus put open interest changes

Growth compares outstanding contracts on each side. A positive growth gap favors calls; a negative gap favors puts. Standardized surprises compare each measure with its own prior history. These describe the OI balance, not IV skew or buying direction.

CORN call and put open interest changes
Measure Value
Call OI change, 1 session -1,279 contracts · -1.0%
Put OI change, 1 session -206 contracts · -3.1%
Call minus put OI growth, 1 session +2.1 pp
Call OI change, 5 sessions -7 contracts · -0.0%
Put OI change, 5 sessions -590 contracts · -8.5%
Call minus put OI growth, 5 sessions +8.5 pp
Daily call OI change surprise -0.15σ (252 prior changes)
Daily put OI change surprise -0.48σ (252 prior changes)
Daily call-minus-put growth surprise — (148 prior changes)

History

2025-10 2026-10
close delta neutral gamma max
Full history since 2020: drag to pan, scroll to zoom, hover for values. Open full-screen chart

Analysis visualizations

Daily ticker aggregates through 2026-10-16. The max pain curve pools all listed expirations; individual contracts are outside the public dataset.

Aggregate IV history

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Swipe chart sideways to see the full range.

What followed prior gamma-max crosses?

Each historical path starts at 0% on the cross date and follows the close for ten subsequent trading sessions. Cohorts use the same direction as labelled and require gamma max to be within 10% of the close on both crossing sessions.

Crosses below gamma max 46 completed Day +10 paths · latest Sep 2, 2026
CORN returns after crossing below gamma max Historical close-to-close return paths from Day 0 through Day 10, with the median, middle fifty percent, and a nominal confidence interval for the median. -12.0% -6.0% 0% +6.0% +12.0% Cross on Dec 24, 2020 Cross on Jan 20, 2021 Cross on Jan 22, 2021 Cross on Feb 1, 2021 Cross on Feb 3, 2021 Cross on Feb 5, 2021 Cross on Feb 10, 2021 Cross on Mar 10, 2021 Cross on Mar 25, 2021 Cross on May 12, 2021 Cross on May 24, 2021 Cross on May 28, 2021 Cross on Jun 3, 2021 Cross on Jun 11, 2021 Cross on Aug 17, 2021 Cross on Aug 20, 2021 Cross on Feb 15, 2022 Cross on Feb 17, 2022 Cross on Feb 23, 2022 Cross on Mar 9, 2022 Cross on Mar 29, 2022 Cross on Apr 12, 2022 Cross on May 2, 2022 Cross on May 24, 2022 Cross on Jun 23, 2023 Cross on Sep 15, 2023 Cross on Oct 20, 2023 Cross on Feb 29, 2024 Cross on Mar 14, 2024 Cross on Mar 22, 2024 Cross on May 17, 2024 Cross on Dec 20, 2024 Cross on Jan 31, 2025 Cross on Feb 5, 2025 Cross on Feb 11, 2025 Cross on Feb 14, 2025 Cross on Feb 19, 2025 Cross on Jun 17, 2025 Cross on Nov 14, 2025 Cross on Dec 29, 2025 Cross on Jan 12, 2026 Cross on Mar 9, 2026 Cross on Mar 23, 2026 Cross on Aug 13, 2026 Cross on Aug 18, 2026 Cross on Sep 2, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
CORN historical gamma-max cross outcomes after closing below
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 46 +0.5% -0.4% to +1.0% 63% 0.0% to +0.9% 0.0%
Day +2 46 +0.5% -1.1% to +1.5% 57% -0.5% to +0.8% 0.0%
Day +3 46 +1.0% -1.4% to +2.4% 57% -0.7% to +1.9% 0.0%
Day +4 46 +0.9% -1.5% to +3.1% 61% -0.3% to +2.5% 0.0%
Day +5 46 +0.3% -1.9% to +3.2% 57% -1.0% to +1.8% 0.0%
Day +6 46 +0.8% -1.6% to +3.2% 61% -0.6% to +1.9% 0.0%
Day +7 46 +0.7% -1.6% to +2.9% 61% -1.0% to +1.4% 0.0%
Day +8 46 +1.1% -1.2% to +3.5% 59% -0.2% to +2.1% 0.0%
Day +9 46 +0.9% -1.4% to +4.9% 57% -0.9% to +2.5% 0.0%
Day +10 46 +1.1% -1.8% to +4.4% 61% -0.7% to +2.7% 0.0%
Crosses above gamma max 44 completed Day +10 paths · latest Sep 1, 2026
CORN returns after crossing above gamma max Historical close-to-close return paths from Day 0 through Day 10, with the median, middle fifty percent, and a nominal confidence interval for the median. -12.0% -6.0% 0% +6.0% +12.0% Cross on Dec 28, 2020 Cross on Jan 21, 2021 Cross on Jan 29, 2021 Cross on Feb 2, 2021 Cross on Feb 4, 2021 Cross on Feb 8, 2021 Cross on Feb 16, 2021 Cross on Mar 19, 2021 Cross on Mar 31, 2021 Cross on May 21, 2021 Cross on May 27, 2021 Cross on Jun 1, 2021 Cross on Jun 7, 2021 Cross on Aug 13, 2021 Cross on Aug 19, 2021 Cross on Feb 11, 2022 Cross on Feb 16, 2022 Cross on Feb 18, 2022 Cross on Feb 28, 2022 Cross on Mar 18, 2022 Cross on Mar 30, 2022 Cross on Apr 14, 2022 Cross on May 23, 2022 Cross on Jun 15, 2023 Cross on Sep 13, 2023 Cross on Oct 19, 2023 Cross on Feb 28, 2024 Cross on Mar 8, 2024 Cross on Mar 15, 2024 Cross on Apr 22, 2024 Cross on Dec 19, 2024 Cross on Jan 17, 2025 Cross on Feb 4, 2025 Cross on Feb 7, 2025 Cross on Feb 12, 2025 Cross on Feb 18, 2025 Cross on Nov 13, 2025 Cross on Dec 19, 2025 Cross on Jan 2, 2026 Cross on Mar 5, 2026 Cross on Mar 20, 2026 Cross on Aug 12, 2026 Cross on Aug 14, 2026 Cross on Sep 1, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
CORN historical gamma-max cross outcomes after closing above
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 44 +0.1% -0.7% to +1.1% 57% -0.2% to +0.6% 0.0%
Day +2 44 +0.3% -1.4% to +1.4% 55% -0.5% to +0.6% 0.0%
Day +3 44 +0.7% -0.9% to +1.9% 61% -0.2% to +1.4% 0.0%
Day +4 44 +0.7% -1.0% to +1.8% 61% -0.1% to +1.3% 0.0%
Day +5 44 +0.5% -0.8% to +2.3% 64% +0.1% to +1.6% +0.1%
Day +6 44 +0.5% -1.3% to +2.8% 61% -0.2% to +2.2% 0.0%
Day +7 44 +0.4% -1.5% to +3.7% 57% -0.3% to +1.6% 0.0%
Day +8 44 +0.9% -1.9% to +3.6% 61% -0.6% to +2.5% 0.0%
Day +9 44 +1.1% -1.3% to +3.1% 61% -0.2% to +2.3% 0.0%
Day +10 44 +1.2% -1.6% to +4.2% 66% +0.2% to +2.5% +0.2%

Returns are close-to-close after the labelled number of subsequent trading sessions. The confidence floor is the closest-to-zero bound of the order-statistic median interval; it is zero when that interval spans zero. Its coverage is nominally at least 90% under independent observations. Historical paths can overlap, so the interval and floor are descriptive uncertainty guides rather than formal coverage guarantees. Historical, not a forecast.

Last 252 sessions

CORN trailing historical statistics
Sessions closed above gamma max 8%
Gamma max crosses 16
Delta neutral crosses 0
Prior-year sessions closer to gamma max 85.7% of 252
Prior-year sessions closer to delta neutral 6.3% of 252
Open interest percentile (1y) 55th
Daily open interest change versus prior year -0.16σ (-1,485 contracts; 252 prior changes)
Open interest change, 5 sessions -0.5%
Open interest change, 21 sessions -0.4%
History available Dec 1, 2020 → Oct 16, 2026

Recent crosses

  1. closed below gamma max at 20.22 vs 20.41 (-0.9%)
  2. closed above gamma max at 20.29 vs 20.06 (+1.1%)
  3. closed below gamma max at 18.42 vs 19.04 (-3.4%)
  4. closed above gamma max at 18.26 vs 18.05 (+1.2%)
  5. closed below gamma max at 17.91 vs 18.11 (-1.1%)
  6. closed above gamma max at 18.20 vs 18.09 (+0.6%)
  7. closed below gamma max at 18.51 vs 19.13 (-3.4%)
  8. closed above gamma max at 18.80 vs 18.66 (+0.7%)
  9. closed below gamma max at 18.20 vs 18.89 (-3.8%)
  10. closed above gamma max at 18.19 vs 17.96 (+1.2%)

In today's screens

Neighbours by open interest

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Canonical source: https://halfonadouble.com/stock/CORN

Questions people ask about CORN

What is CORN's max pain for the nearest expiration?

As of Oct 16, 2026 close, nearest-expiration max pain is 17.00 for the 2026-11-20 expiration. It is a payout-minimizing strike for one expiration. An all-expiration pooled value is a different comparison, and neither establishes where the underlying will close. Max pain definition and worked payout example.

Our 2025 max-pain study compares historical Thursday levels with Friday underlying closes and an unchanged-price baseline. Its scope and results are separate from this current ticker snapshot.

What do CORN's gamma exposure and gamma flip show?

Signed net GEX is 10,593,321 as of Oct 16, 2026 close. No confirmed GEX flip is available; this does not imply a zero exposure level. These aggregate model outputs use calls positive and puts negative. Their sign does not identify dealers' actual positions or predict the next move. How to interpret GEX, gamma flip and walls.

Where is CORN's gamma max today?

As of Oct 16, 2026, the gamma max for CORN is 19.79, +8.8% from the 18.19 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 CORN above or below its delta neutral price?

CORN closed above delta neutral: 18.19 against a delta neutral price of 16.79. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does CORN have?

131,579 contracts of open interest across 86 listed contracts on Oct 16, 2026, -1.1% versus the previous session. What open interest measures.

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