■ 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 — 220 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)RMD 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 ≈ 34.7% · 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
1.00
—
180
—
—
—
—
1.00
—
185
—
—
—
—
1.00
—
190
—
—
—
—
1.00
—
195
—
—
—
—
1.00
—
200
—
—
—
—
1.00
—
210
0.0001
0.00
0.00
0.00
0.98
-0.04
220
0.0067
0.01
-0.04
-0.02
0.72
-0.57
230
0.0512
0.06
-0.57
-0.28
0.17
-0.39
240
0.0394
0.05
-0.39
-0.83
0.01
-0.02
250
0.0036
0.00
-0.04
-1.00
0.00
0.00
260
0.0001
0.00
-0.04
-1.00
—
—
270
—
—
-0.04
-1.00
—
—
280
—
—
-0.04
-1.00
—
—
290
—
—
-0.04
-1.00
—
—
300
—
—
-0.04
-1.00
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.