■ 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 — 147 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)GILD 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 ≈ 34.4% · 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
-0.12
144
0.0253
0.01
-0.12
-0.07
0.91
-0.15
145
0.0330
0.02
-0.15
-0.09
0.88
-0.19
146
0.0425
0.02
-0.19
-0.12
0.84
-0.25
147
0.0537
0.03
-0.25
-0.16
0.79
-0.30
148
0.0661
0.04
-0.30
-0.22
0.72
-0.36
149
0.0784
0.04
-0.36
-0.28
0.64
-0.41
150
0.0883
0.04
-0.41
-0.37
0.41
-0.42
152.5
0.0912
0.05
-0.42
-0.59
0.22
-0.30
155
0.0660
0.04
-0.30
-0.78
0.11
-0.17
157.5
0.0388
0.02
-0.17
-0.89
0.05
-0.09
160
0.0211
0.01
-0.09
-0.95
0.03
-0.05
162.5
0.0113
0.01
-0.05
-0.97
0.01
-0.03
165
0.0061
0.00
-0.03
-0.98
0.01
-0.01
167.5
0.0034
0.00
-0.01
-0.99
0.00
-0.01
170
0.0019
0.00
-0.01
-0.99
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 42 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.