■ 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 — 100 — is the max pain price.
Open interest by strike · Fri, Aug 21
■ calls (up)■ puts (down)CRH open contracts per strike for Fri, Aug 21.
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 21
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 21
— call IV— put IVATM ≈ 36.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 21
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 21
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.90
-0.08
90
0.0270
0.03
-0.08
-0.10
0.86
-0.09
92
0.0390
0.03
-0.09
-0.15
0.83
-0.10
93
0.0472
0.04
-0.10
-0.18
0.79
-0.10
94
0.0570
0.04
-0.11
-0.22
0.73
-0.11
95
0.0682
0.05
-0.11
-0.27
0.67
-0.12
96
0.0795
0.05
-0.12
-0.34
0.59
-0.12
97
0.0884
0.05
-0.13
-0.42
0.54
-0.12
97.5
0.0907
0.06
-0.13
-0.47
0.50
-0.12
98
0.0913
0.06
-0.13
-0.52
0.41
-0.12
99
0.0872
0.05
-0.13
-0.60
0.33
-0.12
100
0.0784
0.05
-0.12
-0.68
0.27
-0.11
101
0.0680
0.05
-0.12
-0.74
0.23
-0.11
102
0.0580
0.04
-0.11
-0.79
0.19
-0.10
103
0.0493
0.04
-0.10
-0.83
0.16
-0.10
104
0.0420
0.03
-0.10
-0.85
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 37 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.