■ 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 — 265 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)ARM open contracts per strike for Fri, Oct 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, Oct 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 16
— call IV— put IVATM ≈ 89.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 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, Oct 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.99
-0.04
180
0.0006
0.00
-0.05
-0.01
0.99
-0.07
190
0.0011
0.01
-0.07
-0.01
0.99
-0.09
195
0.0015
0.01
-0.10
-0.01
0.98
-0.12
200
0.0022
0.01
-0.13
-0.02
0.96
-0.28
210
0.0051
0.02
-0.28
-0.04
0.88
-0.72
220
0.0120
0.04
-0.72
-0.12
0.81
-1.09
225
0.0168
0.05
-1.09
-0.19
0.71
-1.47
230
0.0215
0.06
-1.47
-0.29
0.59
-1.74
235
0.0246
0.07
-1.75
-0.41
0.47
-1.79
240
0.0253
0.07
-1.80
-0.53
0.35
-1.60
245
0.0236
0.07
-1.62
-0.65
0.29
-1.45
247.5
0.0220
0.06
-1.46
-0.71
0.24
-1.26
250
0.0200
0.06
-1.28
-0.76
0.16
-0.89
255
0.0155
0.04
-0.90
-0.84
0.10
-0.58
260
0.0112
0.03
-0.58
-0.90
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.