■ 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 — 215 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)BA 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 ≈ 29.7% · 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
0.93
-0.03
180
0.0052
0.11
-0.03
-0.07
0.90
-0.04
185
0.0071
0.14
-0.04
-0.10
0.86
-0.05
190
0.0092
0.18
-0.06
-0.15
0.80
-0.06
195
0.0114
0.22
-0.07
-0.20
0.74
-0.07
200
0.0136
0.26
-0.08
-0.27
0.66
-0.08
205
0.0154
0.29
-0.09
-0.34
0.58
-0.09
210
0.0166
0.31
-0.09
-0.42
0.50
-0.09
215
0.0170
0.32
-0.09
-0.51
0.42
-0.09
220
0.0167
0.31
-0.09
-0.60
0.34
-0.08
225
0.0157
0.29
-0.09
-0.68
0.27
-0.07
230
0.0141
0.26
-0.08
-0.75
0.21
-0.07
235
0.0123
0.23
-0.07
-0.82
0.16
-0.06
240
0.0103
0.20
-0.06
-0.87
0.12
-0.05
245
0.0085
0.16
-0.05
-0.91
0.09
-0.04
250
0.0068
0.13
-0.04
-0.95
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 45 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.