■ 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 — 320 — is the max pain price.
Open interest by strike · Mon, Aug 3
■ calls (up)■ puts (down)GOOGL open contracts per strike for Mon, Aug 3.
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 · Mon, Aug 3
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Mon, Aug 3
— call IV— put IVATM ≈ 31.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Mon, Aug 3
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 · Mon, Aug 3
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.88
-0.23
317.5
0.0136
0.09
-0.23
-0.12
0.85
-0.28
320
0.0167
0.10
-0.28
-0.15
0.80
-0.33
322.5
0.0198
0.12
-0.33
-0.20
0.75
-0.38
325
0.0228
0.14
-0.38
-0.25
0.69
-0.42
327.5
0.0255
0.15
-0.42
-0.31
0.62
-0.45
330
0.0275
0.16
-0.45
-0.38
0.55
-0.47
332.5
0.0288
0.17
-0.47
-0.45
0.48
-0.47
335
0.0290
0.17
-0.47
-0.52
0.41
-0.46
337.5
0.0283
0.17
-0.46
-0.59
0.34
-0.43
340
0.0267
0.16
-0.43
-0.66
0.28
-0.39
342.5
0.0244
0.14
-0.39
-0.73
0.22
-0.34
345
0.0216
0.13
-0.35
-0.78
0.18
-0.30
347.5
0.0186
0.11
-0.30
-0.83
0.14
-0.25
350
0.0156
0.10
-0.26
-0.87
0.11
-0.21
352.5
0.0130
0.08
-0.22
-0.90
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 40 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.