■ 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 — 43 — is the max pain price.
Open interest by strike · Fri, Jan 15
■ calls (up)■ puts (down)BN open contracts per strike for Fri, Jan 15.
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, Jan 15
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Jan 15
— call IV— put IVATM ≈ 25.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Jan 15
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, Jan 15
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.96
-0.00
30
0.0105
0.03
-0.00
-0.05
0.88
-0.01
35
0.0255
0.06
-0.01
-0.13
0.79
-0.01
38
0.0401
0.08
-0.01
-0.23
0.75
-0.01
39
0.0455
0.09
-0.01
-0.27
0.70
-0.01
40
0.0508
0.10
-0.01
-0.32
0.65
-0.01
41
0.0554
0.10
-0.01
-0.38
0.60
-0.01
42
0.0590
0.10
-0.01
-0.44
0.54
-0.01
43
0.0612
0.11
-0.01
-0.51
0.48
-0.01
44
0.0618
0.11
-0.01
-0.58
0.42
-0.01
45
0.0607
0.11
-0.01
-0.64
0.36
-0.01
46
0.0582
0.10
-0.01
-0.71
0.32
-0.01
47
0.0547
0.10
-0.01
-0.77
0.27
-0.01
48
0.0505
0.09
-0.01
-0.82
0.23
-0.01
49
0.0460
0.08
-0.01
-0.87
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 14 strikes around the money — all 18 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.