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 — 850 — is the max pain price.
Open interest by strike · Mon, Aug 17
■ calls (up)■ puts (down)MU open contracts per strike for Mon, Aug 17.
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 · Mon, Aug 17
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Mon, Aug 17
— call IV— put IVATM ≈ 86.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Mon, Aug 17
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 · Mon, Aug 17
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.71
-2.03
830
0.0024
0.56
-2.04
-0.29
0.68
-2.10
840
0.0025
0.58
-2.11
-0.32
0.67
-2.14
845
0.0026
0.59
-2.15
-0.33
0.66
-2.17
850
0.0026
0.60
-2.18
-0.34
0.63
-2.23
860
0.0027
0.61
-2.23
-0.37
0.61
-2.25
865
0.0027
0.62
-2.26
-0.39
0.60
-2.27
870
0.0028
0.63
-2.28
-0.40
0.59
-2.29
875
0.0028
0.63
-2.30
-0.41
0.57
-2.31
880
0.0028
0.64
-2.31
-0.43
0.56
-2.32
885
0.0028
0.64
-2.33
-0.44
0.54
-2.33
890
0.0028
0.64
-2.33
-0.46
0.53
-2.33
895
0.0029
0.65
-2.34
-0.47
0.52
-2.34
900
0.0029
0.65
-2.35
-0.49
0.50
-2.34
905
0.0029
0.65
-2.35
-0.50
0.49
-2.34
910
0.0029
0.65
-2.34
-0.51
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.