■ 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 — 1150 — is the max pain price.
Open interest by strike · Fri, Sep 25
■ calls (up)■ puts (down)BLK open contracts per strike for Fri, Sep 25.
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 25
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 25
— call IV— put IVATM ≈ 22.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 25
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 25
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.87
-0.33
1090
0.0028
0.71
-0.33
-0.15
0.84
-0.37
1100
0.0033
0.83
-0.37
-0.18
0.81
-0.41
1110
0.0037
0.90
-0.40
-0.21
0.77
-0.44
1120
0.0041
1.02
-0.43
-0.25
0.68
-0.49
1140
0.0048
1.18
-0.48
-0.33
0.64
-0.50
1150
0.0051
1.26
-0.50
-0.38
0.58
-0.51
1160
0.0053
1.31
-0.51
-0.43
0.53
-0.51
1170
0.0054
1.33
-0.51
-0.48
0.48
-0.51
1180
0.0054
1.33
-0.51
-0.54
0.42
-0.49
1190
0.0053
1.31
-0.50
-0.59
0.37
-0.47
1200
0.0051
1.27
-0.48
-0.64
0.32
-0.45
1210
0.0048
1.21
-0.45
-0.69
0.28
-0.41
1220
0.0045
1.13
-0.42
-0.74
0.24
-0.38
1230
0.0042
1.04
-0.38
-0.78
0.20
-0.35
1240
0.0038
0.95
-0.34
-0.82
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.