■ 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 — 60 — is the max pain price.
Open interest by strike · Fri, Jul 16
■ calls (up)■ puts (down)BTI open contracts per strike for Fri, Jul 16.
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, Jul 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Jul 16
— call IV— put IVATM ≈ 27.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Jul 16
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, Jul 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
1.00
—
30
0.0005
0.00
-0.00
-0.04
0.99
0.00
35
0.0034
0.01
-0.00
-0.06
0.94
-0.00
40
0.0106
0.05
-0.01
-0.11
0.86
-0.01
45
0.0186
0.11
-0.01
-0.19
0.74
-0.01
50
0.0243
0.17
-0.01
-0.30
0.60
-0.01
55
0.0282
0.20
-0.01
-0.43
0.46
-0.01
60
0.0288
0.20
-0.01
-0.56
0.34
-0.01
65
0.0262
0.19
-0.01
-0.67
0.25
-0.01
70
0.0222
0.17
-0.01
-0.76
0.18
-0.01
75
0.0180
0.14
-0.00
-0.83
0.14
-0.01
80
0.0144
0.11
-0.00
-0.88
0.10
-0.00
85
0.0114
0.09
-0.00
-0.91
0.08
-0.00
90
0.0090
0.07
-0.00
-0.94
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. 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.