■ 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 — 104 — is the max pain price.
Open interest by strike · Fri, Sep 11
■ calls (up)■ puts (down)W 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 ≈ 51.4% · 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
0.77
-0.11
98
0.0278
0.07
-0.11
-0.23
0.74
-0.12
99
0.0296
0.07
-0.12
-0.26
0.70
-0.13
100
0.0313
0.07
-0.13
-0.30
0.67
-0.13
101
0.0328
0.08
-0.13
-0.33
0.64
-0.14
102
0.0340
0.08
-0.14
-0.36
0.60
-0.14
103
0.0349
0.08
-0.14
-0.40
0.56
-0.14
104
0.0356
0.08
-0.15
-0.44
0.53
-0.15
105
0.0359
0.09
-0.15
-0.47
0.49
-0.15
106
0.0359
0.09
-0.15
-0.51
0.46
-0.15
107
0.0356
0.09
-0.15
-0.54
0.42
-0.15
108
0.0351
0.08
-0.15
-0.58
0.39
-0.14
109
0.0343
0.08
-0.14
-0.61
0.36
-0.14
110
0.0332
0.08
-0.14
-0.64
0.33
-0.14
111
0.0321
0.08
-0.14
-0.67
0.30
-0.13
112
0.0307
0.07
-0.13
-0.70
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 59 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.