■ 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 — 29.5 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)DOW 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 ≈ 38.9% · 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
0.95
-0.01
27
0.0384
0.01
-0.01
-0.05
0.91
-0.02
28
0.0669
0.01
-0.02
-0.09
0.88
-0.02
28.5
0.0872
0.01
-0.02
-0.12
0.83
-0.03
29
0.1116
0.01
-0.03
-0.17
0.78
-0.03
29.5
0.1388
0.02
-0.03
-0.23
0.70
-0.03
30
0.1654
0.02
-0.03
-0.30
0.61
-0.04
30.5
0.1862
0.02
-0.04
-0.39
0.52
-0.04
31
0.1959
0.02
-0.04
-0.49
0.42
-0.04
31.5
0.1921
0.02
-0.04
-0.58
0.33
-0.03
32
0.1765
0.02
-0.03
-0.67
0.26
-0.03
32.5
0.1538
0.02
-0.03
-0.75
0.20
-0.03
33
0.1290
0.01
-0.03
-0.81
0.15
-0.02
33.5
0.1053
0.01
-0.02
-0.86
0.12
-0.02
34
0.0846
0.01
-0.02
-0.90
0.09
-0.02
34.5
0.0674
0.01
-0.02
-0.93
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 27 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.