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 — 840 — is the max pain price.
Open interest by strike · Wed, Aug 12
■ calls (up)■ puts (down)MU open contracts per strike for Wed, Aug 12.
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, Aug 12
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Wed, Aug 12
— call IV— put IVATM ≈ 94.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Wed, Aug 12
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, Aug 12
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.73
-2.78
830
0.0028
0.41
-2.79
-0.27
0.72
-2.85
835
0.0029
0.42
-2.87
-0.28
0.70
-2.93
840
0.0030
0.43
-2.94
-0.29
0.67
-3.06
850
0.0031
0.45
-3.07
-0.33
0.66
-3.11
855
0.0032
0.46
-3.12
-0.34
0.64
-3.17
860
0.0032
0.46
-3.17
-0.36
0.61
-3.25
870
0.0033
0.48
-3.26
-0.39
0.59
-3.29
875
0.0034
0.48
-3.29
-0.41
0.57
-3.31
880
0.0034
0.49
-3.32
-0.43
0.54
-3.35
890
0.0035
0.49
-3.35
-0.46
0.52
-3.36
895
0.0035
0.49
-3.36
-0.48
0.50
-3.36
900
0.0035
0.49
-3.36
-0.50
0.49
-3.35
905
0.0035
0.49
-3.36
-0.51
0.47
-3.34
910
0.0035
0.49
-3.35
-0.53
0.45
-3.32
915
0.0035
0.49
-3.33
-0.55
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.