■ 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 — 55 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)CRC 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 ≈ 37.7% · 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
0.98
-0.01
30
0.0032
0.01
-0.01
-0.03
0.93
-0.01
40
0.0136
0.03
-0.01
-0.09
0.89
-0.02
42.5
0.0190
0.04
-0.02
-0.12
0.85
-0.02
45
0.0261
0.05
-0.02
-0.16
0.78
-0.02
47.5
0.0348
0.07
-0.02
-0.23
0.68
-0.02
50
0.0439
0.08
-0.02
-0.32
0.56
-0.03
52.5
0.0500
0.09
-0.03
-0.44
0.44
-0.03
55
0.0499
0.09
-0.03
-0.56
0.34
-0.02
57.5
0.0444
0.08
-0.02
-0.67
0.26
-0.02
60
0.0371
0.07
-0.02
-0.75
0.20
-0.02
62.5
0.0304
0.06
-0.02
-0.81
0.16
-0.02
65
0.0250
0.05
-0.02
-0.85
0.13
-0.02
67.5
0.0207
0.05
-0.02
-0.88
0.11
-0.02
70
0.0173
0.04
-0.02
-0.90
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 14 strikes around the money — all 20 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.