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 — 650 — is the max pain price.
Open interest by strike · Fri, Jan 15
■ calls (up)■ puts (down)TDY 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 ≈ 27.3% · 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
0.93
-0.09
480
0.0011
0.43
-0.09
-0.07
0.91
-0.10
500
0.0015
0.52
-0.10
-0.10
0.65
-0.18
600
0.0043
1.15
-0.18
-0.36
0.60
-0.18
610
0.0045
1.19
-0.19
-0.41
0.56
-0.18
620
0.0047
1.22
-0.19
-0.46
0.51
-0.18
630
0.0049
1.24
-0.19
-0.51
0.46
-0.18
640
0.0049
1.23
-0.19
-0.56
0.41
-0.17
650
0.0048
1.21
-0.18
-0.61
0.37
-0.16
660
0.0047
1.17
-0.18
-0.66
0.32
-0.16
670
0.0045
1.11
-0.17
-0.70
0.25
-0.14
690
0.0039
0.98
-0.15
-0.79
0.21
-0.13
700
0.0036
0.91
-0.15
-0.82
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 12 strikes around the money — all 20 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.