■ 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 — 143 — is the max pain price.
Open interest by strike · Fri, Sep 11
■ calls (up)■ puts (down)SHOP open contracts per strike for Fri, Sep 11.
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 11
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 11
— call IV— put IVATM ≈ 42.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 11
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 11
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.76
-0.13
142
0.0230
0.10
-0.13
-0.24
0.73
-0.14
143
0.0243
0.10
-0.14
-0.27
0.71
-0.15
144
0.0254
0.11
-0.15
-0.30
0.68
-0.15
145
0.0264
0.11
-0.15
-0.32
0.62
-0.16
147
0.0280
0.12
-0.16
-0.38
0.59
-0.17
148
0.0286
0.12
-0.17
-0.41
0.56
-0.17
149
0.0291
0.12
-0.17
-0.44
0.54
-0.17
150
0.0293
0.13
-0.17
-0.47
0.46
-0.17
152.5
0.0293
0.13
-0.17
-0.54
0.39
-0.16
155
0.0284
0.12
-0.17
-0.61
0.33
-0.15
157.5
0.0266
0.11
-0.15
-0.68
0.27
-0.14
160
0.0242
0.10
-0.14
-0.74
0.21
-0.12
162.5
0.0214
0.09
-0.12
-0.79
0.17
-0.11
165
0.0185
0.08
-0.11
-0.84
0.13
-0.09
167.5
0.0156
0.07
-0.09
-0.88
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 52 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.