Event risk before this expiration: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 — 227.5 — is the max pain price.
Open interest by strike · Fri, Aug 14
■ calls (up)■ puts (down)TSEM 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 ≈ 94.8% · 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
0.73
-0.69
212.5
0.0099
0.11
-0.70
-0.27
0.70
-0.72
215
0.0104
0.12
-0.73
-0.30
0.67
-0.75
217.5
0.0109
0.12
-0.76
-0.33
0.64
-0.78
220
0.0113
0.13
-0.78
-0.36
0.61
-0.79
222.5
0.0116
0.13
-0.80
-0.39
0.58
-0.81
225
0.0119
0.13
-0.81
-0.41
0.55
-0.82
227.5
0.0121
0.14
-0.82
-0.45
0.52
-0.82
230
0.0122
0.14
-0.82
-0.48
0.49
-0.82
232.5
0.0123
0.14
-0.82
-0.51
0.46
-0.82
235
0.0123
0.14
-0.82
-0.54
0.40
-0.79
240
0.0120
0.13
-0.79
-0.60
0.38
-0.77
242.5
0.0118
0.13
-0.77
-0.63
0.35
-0.75
245
0.0115
0.13
-0.75
-0.65
0.32
-0.72
247.5
0.0112
0.12
-0.72
-0.68
0.30
-0.69
250
0.0108
0.12
-0.69
-0.70
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 48 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.