■ 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 — 1030 — is the max pain price.
Open interest by strike · Fri, Sep 18
■ calls (up)■ puts (down)BLK 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 ≈ 22.5% · 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
0.91
-0.30
1090
0.0026
0.48
-0.32
-0.12
0.88
-0.35
1100
0.0031
0.59
-0.36
-0.15
0.81
-0.45
1120
0.0043
0.77
-0.45
-0.22
0.77
-0.50
1130
0.0049
0.89
-0.49
-0.26
0.72
-0.54
1140
0.0055
0.99
-0.52
-0.31
0.66
-0.57
1150
0.0060
1.07
-0.55
-0.36
0.60
-0.59
1160
0.0063
1.12
-0.57
-0.42
0.54
-0.59
1170
0.0064
1.15
-0.58
-0.49
0.47
-0.58
1180
0.0064
1.16
-0.57
-0.55
0.35
-0.53
1200
0.0059
1.08
-0.52
-0.67
0.32
-0.51
1205
0.0057
1.05
-0.50
-0.70
0.24
-0.44
1220
0.0049
0.93
-0.44
-0.77
0.17
-0.35
1240
0.0038
0.74
-0.34
-0.85
0.11
-0.26
1260
0.0028
0.56
-0.25
-0.91
0.07
-0.19
1280
0.0020
0.41
-0.17
-0.94
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 56 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.