Data through close

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

As of close · rank #1220 by open interest · snapshot page

HCA's nearest-expiration max pain is 450.00 for 2026-11-20, its GEX flip is 440.46, net GEX is 564,031, its put/call open-interest ratio is 0.84. These are whole-chain derived aggregates as of Oct 16, 2026 close.

HCA 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
450.00
-1.9% from close
Expiry: 2026-11-20
GEX flip
440.46
-4.0% from close
Net GEX
564,031
1,898,520 per 100k OI
Call wall
480.00
+4.6% from close
Put wall
440.00
-4.1% from close
Put/call OI
0.84
13,579 puts / 16,130 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
458.84
prev 468.50
Gamma max
518.02
+12.9% from close
Delta neutral
434.26
-5.4% from close
Gamma neutral
440.46
-4.0% from close
Open interest
29,709
-24.3% vs prev
Contracts listed
475
315 calls · 240 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
–
cross-sectional score / 100
Directional score
–
IV rank
85.3
within trailing 52-week range
Front IV premium
4.3 pp
front minus back volatility difference
25Δ risk reversal
3.7 pp
put IV minus call IV
IV butterfly
0.2 pp
front-window smile convexity
Volume / open interest
0.04
1,599 contracts traded
Normalized net delta
0.079
option-holder convention
Modeled dealer delta
-0.071
opposite-side scenario
Vanna / 100k OI
2,118
volatility-sensitive delta
Charm / 100k OI
57,486
time-decay-sensitive delta
IV surface range
40.0 pp
aggregate volatility dispersion

Download the dated aggregate analysis JSON .

HCA closed 12.9% below its gamma max of 518.02. It is 5.4% above the delta neutral price of 434.26. That is a fresh cross: the previous close was on the other side of gamma max. Total open interest is 29,709, -24.3% versus the previous session. What gamma max means · What delta neutral means

History

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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In today's screens

Neighbours by open interest

Questions people ask about HCA

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

As of Oct 16, 2026 close, nearest-expiration max pain is 450.00 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 HCA's gamma exposure and gamma flip show?

Signed net GEX is 564,031 as of Oct 16, 2026 close. The confirmed GEX flip is 440.46. 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 HCA's gamma max today?

As of Oct 16, 2026, the gamma max for HCA is 518.02, +12.9% from the 458.84 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 HCA above or below its delta neutral price?

HCA closed above delta neutral: 458.84 against a delta neutral price of 434.26. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does HCA have?

29,709 contracts of open interest across 475 listed contracts on Oct 16, 2026, -24.3% 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.