■ 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 — 355 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)BURL open contracts per strike for Fri, Aug 28.
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, Aug 28
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 28
— call IV— put IVATM ≈ 56.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 28
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, Aug 28
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.84
-0.32
320
0.0060
0.18
-0.33
-0.16
0.80
-0.36
325
0.0068
0.20
-0.37
-0.20
0.77
-0.40
330
0.0076
0.22
-0.41
-0.24
0.72
-0.44
335
0.0083
0.24
-0.45
-0.28
0.68
-0.47
340
0.0089
0.26
-0.48
-0.32
0.63
-0.50
345
0.0094
0.27
-0.51
-0.37
0.58
-0.53
350
0.0097
0.28
-0.53
-0.42
0.53
-0.54
355
0.0098
0.29
-0.54
-0.47
0.51
-0.54
357.5
0.0098
0.29
-0.54
-0.49
0.48
-0.54
360
0.0098
0.29
-0.54
-0.52
0.44
-0.54
365
0.0096
0.28
-0.54
-0.56
0.39
-0.53
370
0.0093
0.28
-0.53
-0.61
0.35
-0.52
375
0.0089
0.27
-0.51
-0.65
0.31
-0.50
380
0.0084
0.26
-0.49
-0.69
0.28
-0.47
385
0.0079
0.24
-0.47
-0.73
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.