■ 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 — 17.5 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)AG 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 ≈ 62.2% · 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
15.5
0.0415
0.00
-0.01
-0.05
0.93
-0.01
16
0.0577
0.00
-0.01
-0.07
0.90
-0.02
16.5
0.0795
0.01
-0.02
-0.10
0.86
-0.02
17
0.1074
0.01
-0.02
-0.14
0.80
-0.03
17.5
0.1397
0.01
-0.03
-0.20
0.72
-0.03
18
0.1713
0.01
-0.03
-0.28
0.63
-0.04
18.5
0.1944
0.01
-0.04
-0.38
0.53
-0.04
19
0.2028
0.01
-0.04
-0.48
0.43
-0.04
19.5
0.1958
0.01
-0.04
-0.58
0.34
-0.04
20
0.1780
0.01
-0.04
-0.66
0.27
-0.04
20.5
0.1553
0.01
-0.04
-0.73
0.21
-0.03
21
0.1320
0.01
-0.03
-0.79
0.17
-0.03
21.5
0.1106
0.01
-0.03
-0.83
0.14
-0.03
22
0.0919
0.01
-0.03
-0.87
0.11
-0.02
22.5
0.0761
0.01
-0.02
-0.90
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 34 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.