■ 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 — 100 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)UGA 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 ≈ 40.4% · 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
0.84
-0.04
107
0.0111
0.12
-0.04
-0.15
0.81
-0.04
110
0.0130
0.14
-0.05
-0.19
0.75
-0.05
114
0.0156
0.16
-0.05
-0.25
0.73
-0.05
115
0.0162
0.17
-0.06
-0.27
0.69
-0.06
117
0.0173
0.17
-0.06
-0.30
0.64
-0.06
120
0.0185
0.19
-0.06
-0.36
0.58
-0.07
123
0.0192
0.20
-0.07
-0.42
0.54
-0.07
125
0.0194
0.20
-0.07
-0.46
0.45
-0.07
130
0.0189
0.20
-0.07
-0.55
0.37
-0.07
135
0.0174
0.19
-0.07
-0.63
0.30
-0.07
140
0.0155
0.17
-0.06
-0.70
0.25
-0.06
145
0.0135
0.16
-0.06
-0.75
0.20
-0.06
150
0.0117
0.14
-0.06
-0.80
0.10
-0.04
170
0.0064
0.09
-0.04
-0.91
0.07
-0.03
180
0.0048
0.07
-0.03
-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 30 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.