■ 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 — 200 — is the max pain price.
Open interest by strike · Wed, Jul 29
■ calls (up)■ puts (down)NVDA open contracts per strike for Wed, Jul 29.
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 · Wed, Jul 29
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Wed, Jul 29
— call IV— put IVATM ≈ 47.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Wed, Jul 29
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 · Wed, Jul 29
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.99
-0.02
180
0.0033
0.00
-0.02
-0.01
0.99
-0.03
182.5
0.0051
0.00
-0.03
-0.01
0.98
-0.05
185
0.0088
0.01
-0.05
-0.02
0.95
-0.10
187.5
0.0164
0.01
-0.10
-0.04
0.91
-0.24
190
0.0311
0.02
-0.24
-0.10
0.81
-0.56
192.5
0.0523
0.03
-0.57
-0.19
0.65
-1.21
195
0.0721
0.04
-1.21
-0.35
0.46
-1.62
197.5
0.0793
0.04
-1.62
-0.54
0.27
-0.81
200
0.0673
0.04
-0.81
-0.73
0.14
-0.35
202.5
0.0443
0.02
-0.35
-0.86
0.07
-0.15
205
0.0251
0.01
-0.16
-0.93
0.04
-0.08
207.5
0.0139
0.01
-0.09
-0.97
0.02
-0.04
210
0.0080
0.01
-0.06
-0.98
0.01
-0.03
212.5
0.0048
0.00
-0.04
-0.99
0.01
-0.02
215
0.0031
0.00
-0.03
-0.99
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 53 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.