■ 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 — 720 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)REGN open contracts per strike for Fri, Oct 16.
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, Oct 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 16
— call IV— put IVATM ≈ 27.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 16
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, Oct 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.76
-0.23
750
0.0032
1.01
-0.24
-0.24
0.73
-0.25
760
0.0035
1.08
-0.26
-0.27
0.69
-0.26
770
0.0038
1.15
-0.27
-0.31
0.68
-0.27
775
0.0039
1.18
-0.28
-0.33
0.66
-0.27
780
0.0040
1.20
-0.28
-0.35
0.59
-0.28
795
0.0043
1.27
-0.29
-0.41
0.57
-0.29
800
0.0044
1.28
-0.30
-0.44
0.53
-0.29
810
0.0045
1.30
-0.30
-0.48
0.50
-0.29
815
0.0045
1.30
-0.30
-0.51
0.48
-0.29
820
0.0045
1.30
-0.30
-0.53
0.46
-0.29
825
0.0045
1.30
-0.30
-0.55
0.44
-0.28
830
0.0045
1.29
-0.29
-0.58
0.35
-0.27
850
0.0042
1.22
-0.28
-0.66
0.31
-0.26
860
0.0041
1.16
-0.27
-0.71
0.28
-0.24
870
0.0038
1.10
-0.25
-0.74
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 41 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.