■ 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, Nov 20
■ calls (up)■ puts (down)BKSY open contracts per strike for Fri, Nov 20.
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, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 94.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
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, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.97
-0.01
12.5
0.0040
0.01
-0.01
-0.03
0.95
-0.01
15
0.0064
0.02
-0.01
-0.06
0.92
-0.01
17.5
0.0095
0.03
-0.01
-0.09
0.88
-0.02
20
0.0131
0.03
-0.02
-0.13
0.82
-0.02
22.5
0.0168
0.04
-0.02
-0.18
0.77
-0.02
25
0.0202
0.05
-0.03
-0.24
0.64
-0.03
30
0.0249
0.06
-0.03
-0.37
0.52
-0.03
35
0.0263
0.06
-0.03
-0.49
0.41
-0.03
40
0.0252
0.06
-0.03
-0.60
0.33
-0.03
45
0.0229
0.06
-0.03
-0.68
0.27
-0.03
50
0.0204
0.05
-0.03
-0.75
0.22
-0.03
55
0.0179
0.05
-0.03
-0.80
0.19
-0.02
60
0.0157
0.04
-0.03
-0.84
0.16
-0.02
65
0.0138
0.04
-0.02
-0.87
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 14 strikes around the money — all 16 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.