■ 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 — 700 — is the max pain price.
Open interest by strike · Fri, Sep 18
■ calls (up)■ puts (down)REGN 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 ≈ 26.3% · 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
0.78
-0.31
760
0.0043
0.71
-0.32
-0.22
0.76
-0.32
765
0.0046
0.75
-0.33
-0.24
0.74
-0.33
770
0.0049
0.78
-0.34
-0.27
0.69
-0.35
780
0.0055
0.85
-0.36
-0.32
0.63
-0.37
790
0.0059
0.90
-0.38
-0.38
0.60
-0.38
795
0.0061
0.92
-0.39
-0.41
0.57
-0.38
800
0.0063
0.94
-0.39
-0.44
0.51
-0.39
810
0.0064
0.95
-0.39
-0.50
0.44
-0.38
820
0.0064
0.94
-0.39
-0.57
0.38
-0.37
830
0.0062
0.91
-0.38
-0.63
0.32
-0.35
840
0.0058
0.86
-0.36
-0.69
0.27
-0.32
850
0.0053
0.80
-0.33
-0.74
0.25
-0.31
855
0.0050
0.76
-0.32
-0.77
0.19
-0.27
870
0.0042
0.66
-0.28
-0.83
0.16
-0.25
880
0.0037
0.59
-0.26
-0.86
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.