■ 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 — 135 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)SHOP 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 ≈ 43.4% · 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
0.94
-0.02
115
0.0041
0.06
-0.03
-0.06
0.92
-0.03
120
0.0057
0.09
-0.04
-0.08
0.88
-0.05
125
0.0076
0.11
-0.05
-0.12
0.83
-0.06
130
0.0097
0.14
-0.06
-0.17
0.78
-0.07
135
0.0118
0.17
-0.07
-0.23
0.71
-0.08
140
0.0137
0.19
-0.09
-0.29
0.63
-0.09
145
0.0152
0.21
-0.09
-0.37
0.55
-0.09
150
0.0160
0.22
-0.10
-0.45
0.47
-0.10
155
0.0162
0.22
-0.10
-0.53
0.40
-0.09
160
0.0157
0.22
-0.09
-0.61
0.33
-0.09
165
0.0146
0.20
-0.09
-0.68
0.27
-0.08
170
0.0133
0.18
-0.08
-0.75
0.21
-0.07
175
0.0117
0.16
-0.07
-0.80
0.17
-0.06
180
0.0100
0.14
-0.06
-0.85
0.13
-0.05
185
0.0085
0.12
-0.05
-0.89
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 34 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.