■ 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 — 72.5 — is the max pain price.
Open interest by strike · Fri, Jan 15
■ calls (up)■ puts (down)SWKS 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 ≈ 50.9% · 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
0.89
-0.01
50
0.0095
0.10
-0.02
-0.14
0.86
-0.02
52.5
0.0110
0.11
-0.02
-0.17
0.82
-0.02
55
0.0125
0.12
-0.02
-0.21
0.79
-0.02
57.5
0.0140
0.14
-0.02
-0.25
0.75
-0.02
60
0.0152
0.15
-0.03
-0.29
0.70
-0.03
62.5
0.0164
0.16
-0.03
-0.33
0.66
-0.03
65
0.0173
0.16
-0.03
-0.38
0.62
-0.03
67.5
0.0179
0.17
-0.03
-0.42
0.57
-0.03
70
0.0184
0.17
-0.03
-0.47
0.53
-0.03
72.5
0.0186
0.17
-0.03
-0.52
0.49
-0.03
75
0.0186
0.17
-0.03
-0.56
0.45
-0.03
77.5
0.0184
0.17
-0.03
-0.60
0.41
-0.03
80
0.0180
0.17
-0.03
-0.64
0.37
-0.03
82.5
0.0175
0.17
-0.03
-0.68
0.34
-0.03
85
0.0168
0.16
-0.03
-0.72
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 39 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.