■ 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 — 50 — is the max pain price.
Open interest by strike · Fri, Jan 15
■ calls (up)■ puts (down)ALGT open contracts per strike for Fri, Jan 15.
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, Jan 15
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Jan 15
— call IV— put IVATM ≈ 63.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Jan 15
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, Jan 15
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.94
-0.01
45
0.0026
0.07
-0.02
-0.06
0.92
-0.01
50
0.0035
0.09
-0.02
-0.08
0.89
-0.02
55
0.0045
0.11
-0.03
-0.11
0.82
-0.03
65
0.0068
0.15
-0.03
-0.18
0.78
-0.03
70
0.0079
0.17
-0.04
-0.23
0.73
-0.04
75
0.0090
0.19
-0.04
-0.28
0.68
-0.04
80
0.0099
0.20
-0.04
-0.33
0.62
-0.04
85
0.0106
0.22
-0.04
-0.39
0.57
-0.04
90
0.0111
0.22
-0.04
-0.45
0.52
-0.04
95
0.0114
0.23
-0.04
-0.50
0.46
-0.04
100
0.0114
0.23
-0.04
-0.56
0.41
-0.04
105
0.0113
0.22
-0.04
-0.61
0.33
-0.04
115
0.0105
0.20
-0.04
-0.70
0.29
-0.04
120
0.0099
0.19
-0.04
-0.74
0.26
-0.04
125
0.0093
0.18
-0.03
-0.78
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 21 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.