■ 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 — 1040 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)URI open contracts per strike for Fri, Oct 23.
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 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 23
— call IV— put IVATM ≈ 68.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 23
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 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.74
-2.02
990
0.0028
0.54
-2.03
-0.26
0.71
-2.14
1000
0.0030
0.57
-2.15
-0.29
0.68
-2.25
1010
0.0031
0.60
-2.25
-0.32
0.65
-2.33
1020
0.0032
0.63
-2.34
-0.35
0.59
-2.45
1037.5
0.0034
0.65
-2.46
-0.41
0.58
-2.46
1040
0.0034
0.66
-2.47
-0.42
0.54
-2.50
1050
0.0035
0.67
-2.50
-0.46
0.51
-2.51
1060
0.0035
0.67
-2.52
-0.49
0.47
-2.51
1070
0.0035
0.67
-2.51
-0.53
0.46
-2.50
1075
0.0035
0.67
-2.50
-0.54
0.44
-2.48
1080
0.0034
0.66
-2.49
-0.56
0.42
-2.46
1085
0.0034
0.66
-2.47
-0.58
0.41
-2.44
1090
0.0034
0.65
-2.44
-0.59
0.39
-2.41
1095
0.0034
0.65
-2.42
-0.61
0.37
-2.38
1100
0.0033
0.64
-2.38
-0.63
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 45 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.