■ 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 — 915 — is the max pain price.
Open interest by strike · Fri, Sep 11
■ calls (up)■ puts (down)COST 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 ≈ 22.8% · 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
0.84
-0.22
880
0.0034
0.73
-0.23
-0.16
0.81
-0.25
890
0.0039
0.83
-0.26
-0.20
0.79
-0.27
895
0.0042
0.88
-0.28
-0.22
0.77
-0.28
900
0.0044
0.93
-0.29
-0.24
0.61
-0.35
930
0.0056
1.15
-0.36
-0.40
0.58
-0.36
935
0.0057
1.17
-0.37
-0.43
0.53
-0.37
945
0.0058
1.20
-0.38
-0.48
0.47
-0.37
955
0.0058
1.19
-0.38
-0.55
0.41
-0.36
965
0.0057
1.17
-0.37
-0.60
0.36
-0.35
975
0.0054
1.12
-0.36
-0.66
0.17
-0.24
1020
0.0036
0.78
-0.26
-0.85
0.03
-0.08
1130
0.0008
0.22
-0.10
-1.00
0.03
-0.07
1135
0.0008
0.21
-0.10
-1.00
0.03
-0.07
1140
0.0007
0.20
-0.10
-1.00
0.02
-0.06
1160
0.0006
0.16
-0.10
-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 35 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.