■ 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 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)BEKE 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 ≈ 53.5% · 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
0.94
-0.02
12
0.0304
0.00
-0.02
-0.06
0.93
-0.02
12.5
0.0369
0.00
-0.02
-0.07
0.92
-0.02
13
0.0451
0.01
-0.02
-0.08
0.89
-0.02
14
0.0702
0.01
-0.02
-0.12
0.83
-0.03
15
0.1157
0.01
-0.03
-0.17
0.78
-0.03
15.5
0.1515
0.01
-0.03
-0.22
0.70
-0.03
16
0.1971
0.01
-0.03
-0.30
0.48
-0.03
17
0.2555
0.01
-0.03
-0.53
0.36
-0.03
17.5
0.2289
0.01
-0.03
-0.64
0.28
-0.03
18
0.1893
0.01
-0.03
-0.72
0.23
-0.03
18.5
0.1539
0.01
-0.03
-0.78
0.18
-0.03
19
0.1260
0.01
-0.03
-0.82
0.16
-0.02
19.5
0.1046
0.01
-0.02
-0.85
0.13
-0.02
20
0.0880
0.01
-0.02
-0.87
0.08
-0.02
22
0.0494
0.00
-0.02
-0.92
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 23 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.