■ 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 — 50 — is the max pain price.
Open interest by strike · Fri, Sep 18
■ calls (up)■ puts (down)SHAZ open contracts per strike for Fri, Sep 18.
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 18
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 18
— call IV— put IVATM ≈ 107.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 18
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 18
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.98
-0.01
35
0.0017
0.01
-0.01
-0.02
0.96
-0.02
40
0.0032
0.02
-0.03
-0.04
0.93
-0.04
45
0.0052
0.03
-0.04
-0.07
0.89
-0.06
50
0.0077
0.04
-0.07
-0.11
0.83
-0.08
55
0.0103
0.06
-0.09
-0.17
0.76
-0.10
60
0.0126
0.07
-0.11
-0.24
0.68
-0.12
65
0.0144
0.08
-0.12
-0.32
0.60
-0.13
70
0.0154
0.09
-0.13
-0.40
0.52
-0.14
75
0.0158
0.09
-0.14
-0.47
0.45
-0.14
80
0.0155
0.09
-0.14
-0.55
0.39
-0.13
85
0.0149
0.09
-0.13
-0.61
0.33
-0.13
90
0.0139
0.08
-0.12
-0.67
0.28
-0.12
95
0.0128
0.08
-0.11
-0.72
0.24
-0.11
100
0.0117
0.07
-0.10
-0.76
0.20
-0.10
105
0.0105
0.06
-0.09
-0.80
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.