■ 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 — 310 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)CME open contracts per strike for Fri, Oct 30.
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, Oct 30
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 30
— call IV— put IVATM ≈ 31.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 30
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, Oct 30
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.98
-0.05
275
0.0052
0.01
-0.06
-0.02
0.97
-0.08
277.5
0.0080
0.02
-0.09
-0.03
0.95
-0.13
280
0.0122
0.03
-0.13
-0.05
0.92
-0.18
282.5
0.0183
0.04
-0.19
-0.08
0.87
-0.27
285
0.0265
0.06
-0.27
-0.13
0.80
-0.36
287.5
0.0367
0.08
-0.37
-0.20
0.70
-0.46
290
0.0469
0.09
-0.46
-0.30
0.57
-0.52
292.5
0.0539
0.10
-0.52
-0.43
0.44
-0.51
295
0.0546
0.10
-0.52
-0.57
0.31
-0.45
297.5
0.0486
0.09
-0.46
-0.70
0.21
-0.35
300
0.0385
0.08
-0.35
-0.81
0.13
-0.25
302.5
0.0281
0.06
-0.25
-0.88
0.08
-0.17
305
0.0193
0.04
-0.17
-0.93
0.05
-0.11
307.5
0.0128
0.03
-0.11
-0.96
0.03
-0.07
310
0.0084
0.02
-0.07
-0.98
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 40 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.