■ 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 — 185 — is the max pain price.
Open interest by strike · Fri, Sep 4
■ calls (up)■ puts (down)MMM open contracts per strike for Fri, Sep 4.
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, Sep 4
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 4
— call IV— put IVATM ≈ 20.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 4
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, Sep 4
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.98
-0.03
145
0.0022
0.02
-0.03
-0.03
0.98
-0.03
150
0.0030
0.02
-0.03
-0.03
0.96
-0.03
160
0.0060
0.03
-0.04
-0.05
0.95
-0.04
165
0.0093
0.04
-0.04
-0.07
0.92
-0.05
170
0.0158
0.07
-0.05
-0.11
0.83
-0.07
175
0.0281
0.11
-0.07
-0.20
0.66
-0.09
180
0.0410
0.16
-0.09
-0.36
0.45
-0.09
185
0.0439
0.17
-0.09
-0.56
0.25
-0.07
190
0.0347
0.14
-0.07
-0.76
0.13
-0.05
195
0.0219
0.10
-0.05
-0.88
0.09
-0.04
200
0.0138
0.07
-0.04
-0.92
0.06
-0.04
210
0.0074
0.05
-0.04
-0.95
0.04
-0.04
220
0.0048
0.04
-0.04
-0.96
0.04
-0.04
225
0.0040
0.04
-0.04
-0.97
0.03
-0.04
230
0.0034
0.03
-0.04
-0.97
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 31 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.