■ 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 — 535 — is the max pain price.
Open interest by strike · Fri, Sep 4
■ calls (up)■ puts (down)DIA open contracts per strike for Fri, Sep 4.
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, Sep 4
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 4
— call IV— put IVATM ≈ 11.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 4
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, Sep 4
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.71
-0.14
527
0.0232
0.41
-0.15
-0.30
0.69
-0.14
527.5
0.0238
0.42
-0.15
-0.31
0.64
-0.15
530
0.0262
0.45
-0.15
-0.38
0.61
-0.15
531
0.0270
0.46
-0.16
-0.40
0.58
-0.15
532
0.0277
0.46
-0.16
-0.43
0.57
-0.15
532.5
0.0280
0.47
-0.16
-0.44
0.56
-0.15
533
0.0283
0.47
-0.16
-0.46
0.53
-0.15
534
0.0288
0.47
-0.16
-0.49
0.50
-0.15
535
0.0291
0.47
-0.16
-0.52
0.47
-0.15
536
0.0292
0.47
-0.16
-0.55
0.44
-0.15
537
0.0292
0.47
-0.15
-0.58
0.41
-0.14
538
0.0290
0.46
-0.15
-0.61
0.38
-0.14
539
0.0286
0.45
-0.15
-0.64
0.35
-0.14
540
0.0281
0.44
-0.14
-0.67
0.33
-0.13
541
0.0273
0.43
-0.14
-0.70
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 51 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.