Event risk before this expiration:Jobs report Fri, Aug 7 · CPI release Wed, Aug 12 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ 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 — 80 — is the max pain price.
Open interest by strike · Fri, Aug 14
■ calls (up)■ puts (down)GM open contracts per strike for Fri, Aug 14.
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, Aug 14
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 14
— call IV— put IVATM ≈ 34.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 14
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, Aug 14
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.93
-0.04
82
0.0265
0.02
-0.04
-0.07
0.90
-0.05
83
0.0345
0.03
-0.05
-0.10
0.86
-0.06
84
0.0440
0.03
-0.06
-0.14
0.81
-0.07
85
0.0541
0.04
-0.07
-0.19
0.75
-0.09
86
0.0640
0.04
-0.09
-0.25
0.68
-0.10
87
0.0729
0.05
-0.10
-0.32
0.61
-0.10
88
0.0796
0.05
-0.11
-0.40
0.53
-0.11
89
0.0829
0.06
-0.11
-0.48
0.44
-0.11
90
0.0822
0.06
-0.11
-0.56
0.36
-0.10
91
0.0778
0.05
-0.10
-0.64
0.29
-0.09
92
0.0706
0.05
-0.10
-0.71
0.23
-0.08
93
0.0620
0.04
-0.08
-0.77
0.18
-0.07
94
0.0528
0.04
-0.07
-0.82
0.14
-0.06
95
0.0438
0.03
-0.06
-0.87
0.09
-0.05
96.5
0.0321
0.02
-0.05
-0.91
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 43 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 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.