Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 · Jobs report Fri, Dec 4 · FOMC decision Wed, Dec 9 · CPI release Thu, Dec 10 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ 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 — 420 — is the max pain price.
Open interest by strike · Fri, May 21
■ calls (up)■ puts (down)MSGS open contracts per strike for Fri, May 21.
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, May 21
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, May 21
— call IV— put IVATM ≈ 27.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, May 21
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, May 21
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.91
-0.03
300
0.0018
0.47
-0.03
-0.09
0.86
-0.04
320
0.0025
0.65
-0.05
-0.14
0.80
-0.05
340
0.0033
0.83
-0.06
-0.21
0.76
-0.06
350
0.0037
0.91
-0.07
-0.25
0.72
-0.07
360
0.0040
0.99
-0.07
-0.29
0.68
-0.07
370
0.0043
1.06
-0.07
-0.34
0.63
-0.07
380
0.0046
1.11
-0.08
-0.38
0.59
-0.07
390
0.0047
1.15
-0.08
-0.44
0.54
-0.08
400
0.0049
1.17
-0.08
-0.49
0.49
-0.08
410
0.0049
1.18
-0.09
-0.54
0.45
-0.07
420
0.0049
1.17
-0.09
-0.59
0.40
-0.07
430
0.0048
1.14
-0.08
-0.64
0.36
-0.07
440
0.0046
1.10
-0.08
-0.69
0.32
-0.07
450
0.0044
1.06
-0.08
-0.74
0.28
-0.06
460
0.0042
1.00
-0.08
-0.79
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 25 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.