■ put-side pain■ call-side painTotal payout option writers would owe at each settle price (both sides, all open interest, ×100 shares) — low settles hurt put writers, high settles hurt call writers. The minimum — 21.5 — is the max pain price.
Open interest by strike · Fri, Jul 31
■ calls (up)■ puts (down)GME open contracts per strike for Fri, Jul 31.
Open-interest change — building vs unwinding
Needs two observed snapshot days for this expiration — the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
Volume by strike · Fri, Jul 31
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Jul 31
— call IV— put IVATM ≈ 32.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Jul 31
Net dealer gamma per strike, in dollars per 1% move, assuming the standard convention (dealers long calls, short puts) — an assumption, not an observation. Above the amber flip level hedging tends to dampen moves; below it, to amplify them.
Greeks by strike · Fri, Jul 31
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.99
-0.00
18.5
0.0122
0.00
-0.00
-0.01
0.99
-0.00
19
0.0175
0.00
-0.00
-0.01
0.99
-0.00
19.5
0.0261
0.00
-0.01
-0.01
0.98
-0.01
20
0.0416
0.00
-0.01
-0.02
0.97
-0.01
20.5
0.0741
0.00
-0.01
-0.03
0.94
-0.01
21
0.1562
0.00
-0.01
-0.06
0.84
-0.03
21.5
0.3489
0.01
-0.03
-0.16
0.61
-0.04
22
0.5855
0.01
-0.04
-0.39
0.33
-0.05
22.5
0.5090
0.01
-0.05
-0.67
0.17
-0.03
23
0.3037
0.01
-0.03
-0.83
0.09
-0.02
23.5
0.1743
0.00
-0.02
-0.91
0.06
-0.02
24
0.1080
0.00
-0.02
-0.94
0.04
-0.01
24.5
0.0728
0.00
-0.01
-0.96
0.03
-0.01
25
0.0521
0.00
-0.01
-0.97
0.03
-0.01
25.5
0.0389
0.00
-0.01
-0.97
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 32 are in the CSV. Δ per $1 of underlying · Θ per day · vega per IV point.
Stacked — layer the expirations
Call open interest per strike, stacked across the checked expirations — each color is one expiry. Strikes are pruned to the liquid center of each chain.
Max pain history
History starts accruing now: first snapshot taken 2026-07-28. We chart only days we actually observed — check back as the record builds. The measured hit-rate across all tickers lives on the accuracy ledger.
Max pain is arithmetic, not prophecy: the settle price that would minimize what option writers pay out at expiration, computed from open interest alone. Prices sometimes gravitate toward heavy strikes into expiry — dealer hedging is a real flow — but the evidence that max pain predicts settlement better than chance is mixed, and we are not going to pretend otherwise. Use it as a map of where positioning is stacked, next to the fundamentals and the earnings calendar, not as a target.
Data: Cboe delayed public feed (~15 minutes), refreshed here about every 15 minutes. Open interest itself updates once daily, before the open. Educational information, not investment advice.