■ 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 · Fri, Jul 31
■ calls (up)■ puts (down)TSLA 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 ≈ 54.9% · 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
-0.06
255
0.0010
0.01
-0.07
-0.01
0.95
-0.24
280
0.0057
0.03
-0.24
-0.05
0.92
-0.36
285
0.0087
0.04
-0.36
-0.08
0.87
-0.52
290
0.0129
0.06
-0.53
-0.13
0.80
-0.73
295
0.0179
0.08
-0.74
-0.20
0.70
-0.95
300
0.0226
0.10
-0.95
-0.30
0.57
-1.10
305
0.0253
0.11
-1.10
-0.43
0.51
-1.12
307.5
0.0257
0.11
-1.13
-0.49
0.45
-1.11
310
0.0255
0.11
-1.12
-0.56
0.33
-0.99
315
0.0232
0.10
-1.00
-0.68
0.27
-0.90
317.5
0.0213
0.09
-0.91
-0.73
0.23
-0.80
320
0.0192
0.08
-0.80
-0.78
0.18
-0.69
322.5
0.0169
0.07
-0.69
-0.82
0.15
-0.59
325
0.0146
0.07
-0.59
-0.85
0.12
-0.49
327.5
0.0124
0.06
-0.49
-0.88
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.