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 — 144 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)PG open contracts per strike for Fri, Aug 28.
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 28
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 28
— call IV— put IVATM ≈ 23.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 28
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 28
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.79
-0.05
136
0.0306
0.12
-0.05
-0.21
0.76
-0.05
137
0.0334
0.13
-0.05
-0.25
0.72
-0.06
138
0.0361
0.13
-0.06
-0.28
0.68
-0.06
139
0.0384
0.14
-0.06
-0.32
0.65
-0.06
140
0.0404
0.15
-0.06
-0.36
0.60
-0.06
141
0.0420
0.15
-0.06
-0.40
0.56
-0.06
142
0.0430
0.16
-0.07
-0.45
0.52
-0.07
143
0.0435
0.16
-0.07
-0.49
0.47
-0.07
144
0.0435
0.16
-0.07
-0.54
0.43
-0.06
145
0.0429
0.16
-0.07
-0.58
0.39
-0.06
146
0.0418
0.15
-0.06
-0.62
0.35
-0.06
147
0.0403
0.15
-0.06
-0.66
0.31
-0.06
148
0.0384
0.14
-0.06
-0.70
0.28
-0.06
149
0.0362
0.13
-0.06
-0.74
0.25
-0.05
150
0.0338
0.13
-0.06
-0.77
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 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.