■ 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 — 230 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)WM 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 ≈ 20.4% · 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
—
175
0.0015
0.04
-0.01
-0.02
0.98
—
180
0.0021
0.05
-0.01
-0.02
0.97
—
185
0.0029
0.07
-0.01
-0.03
0.96
-0.01
190
0.0041
0.09
-0.02
-0.05
0.94
-0.01
195
0.0058
0.13
-0.02
-0.07
0.91
-0.02
200
0.0079
0.16
-0.03
-0.10
0.81
-0.04
210
0.0140
0.26
-0.04
-0.20
0.64
-0.05
220
0.0204
0.35
-0.06
-0.38
0.43
-0.05
230
0.0216
0.37
-0.06
-0.60
0.25
-0.04
240
0.0168
0.30
-0.04
-0.79
0.14
-0.03
250
0.0110
0.21
-0.02
-0.90
0.07
-0.02
260
0.0067
0.14
-0.01
-0.96
0.04
-0.02
270
0.0041
0.09
-0.09
-1.00
0.03
-0.01
280
0.0025
0.06
-0.11
-1.00
0.02
-0.01
290
0.0016
0.04
-0.11
-1.00
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 24 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.