■ 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 — 30 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)BLSH open contracts per strike for Fri, Oct 23.
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 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 23
— call IV— put IVATM ≈ 153.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 23
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 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.99
-0.00
24
0.0083
0.00
-0.01
-0.01
0.98
-0.01
25
0.0200
0.00
-0.01
-0.02
0.96
-0.03
26
0.0471
0.00
-0.03
-0.04
0.93
-0.05
26.5
0.0708
0.00
-0.05
-0.07
0.90
-0.09
27
0.1036
0.00
-0.09
-0.10
0.84
-0.15
27.5
0.1454
0.00
-0.15
-0.16
0.76
-0.24
28
0.1917
0.01
-0.24
-0.24
0.65
-0.38
28.5
0.2323
0.01
-0.38
-0.35
0.53
-0.52
29
0.2536
0.01
-0.52
-0.47
0.40
-0.43
29.5
0.2473
0.01
-0.43
-0.60
0.29
-0.28
30
0.2170
0.01
-0.28
-0.71
0.20
-0.18
30.5
0.1746
0.00
-0.17
-0.80
0.14
-0.11
31
0.1320
0.00
-0.11
-0.86
0.09
-0.07
31.5
0.0960
0.00
-0.07
-0.91
0.06
-0.04
32
0.0682
0.00
-0.05
-0.94
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 47 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.