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 — 111 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)WMT 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 ≈ 34.6% · 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
0.77
-0.06
106
0.0318
0.09
-0.07
-0.23
0.74
-0.07
107
0.0343
0.09
-0.07
-0.27
0.70
-0.07
108
0.0365
0.10
-0.07
-0.31
0.66
-0.08
109
0.0383
0.10
-0.08
-0.34
0.62
-0.08
110
0.0398
0.11
-0.08
-0.38
0.58
-0.08
111
0.0408
0.11
-0.08
-0.42
0.54
-0.08
112
0.0414
0.11
-0.08
-0.47
0.50
-0.08
113
0.0416
0.11
-0.08
-0.51
0.46
-0.08
114
0.0413
0.11
-0.08
-0.55
0.42
-0.08
115
0.0406
0.11
-0.08
-0.59
0.38
-0.08
116
0.0395
0.11
-0.08
-0.63
0.34
-0.08
117
0.0381
0.10
-0.08
-0.67
0.30
-0.07
118
0.0364
0.10
-0.07
-0.70
0.27
-0.07
119
0.0344
0.09
-0.07
-0.73
0.24
-0.07
120
0.0323
0.09
-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 45 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.