■ 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 — 450 — is the max pain price.
Open interest by strike · Fri, Jan 15
■ calls (up)■ puts (down)FN 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 ≈ 78.0% · 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
0.71
-0.32
500
0.0012
1.27
-0.33
-0.29
0.69
-0.32
510
0.0012
1.30
-0.33
-0.31
0.68
-0.33
520
0.0012
1.32
-0.34
-0.32
0.67
-0.34
530
0.0012
1.34
-0.34
-0.33
0.66
-0.34
540
0.0013
1.37
-0.35
-0.35
0.64
-0.34
550
0.0013
1.38
-0.35
-0.36
0.63
-0.35
560
0.0013
1.40
-0.36
-0.38
0.61
-0.35
570
0.0013
1.42
-0.36
-0.39
0.60
-0.36
580
0.0013
1.43
-0.36
-0.40
0.58
-0.36
600
0.0014
1.45
-0.37
-0.43
0.56
-0.36
610
0.0014
1.46
-0.37
-0.44
0.55
-0.37
620
0.0014
1.47
-0.37
-0.46
0.54
-0.37
630
0.0014
1.47
-0.38
-0.47
0.53
-0.37
640
0.0014
1.48
-0.38
-0.48
0.51
-0.37
650
0.0014
1.48
-0.38
-0.49
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.