■ 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 — 125 — is the max pain price.
Open interest by strike · Fri, Jan 15
■ calls (up)■ puts (down)DD 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 ≈ 31.7% · 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
0.92
-0.01
105
0.0042
0.14
-0.02
-0.08
0.90
-0.01
110
0.0053
0.17
-0.02
-0.10
0.87
-0.02
115
0.0066
0.20
-0.02
-0.14
0.83
-0.02
120
0.0080
0.23
-0.03
-0.17
0.78
-0.03
125
0.0095
0.27
-0.03
-0.22
0.73
-0.03
130
0.0110
0.30
-0.03
-0.28
0.67
-0.03
135
0.0122
0.33
-0.04
-0.34
0.54
-0.04
145
0.0136
0.36
-0.04
-0.47
0.47
-0.04
150
0.0137
0.36
-0.04
-0.54
0.41
-0.04
155
0.0134
0.35
-0.04
-0.61
0.35
-0.03
160
0.0128
0.34
-0.04
-0.67
0.25
-0.03
170
0.0109
0.29
-0.03
-0.78
0.21
-0.03
175
0.0098
0.26
-0.03
-0.83
0.14
-0.02
185
0.0076
0.21
-0.02
-0.91
0.12
-0.02
190
0.0066
0.18
-0.01
-0.93
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.