HowThe settle strike with the smallest total payout to option holders for the 2027-01-15 expiration, over 75 strikes carrying 32,905 open contracts. Open interest is published once a day, before the open, so it describes the previous session.
SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 4, 11:48 AM ET
How17,049 put contracts / 15,856 call contracts = 1.08 for the 2027-01-15 expiration. Open interest is published once a day, before the open, so it describes the previous session.
SourceNet gamma exposure from Cboe greeks and open interest
As ofCboe delayed snapshot Nov 4, 11:48 AM ET
HowOver every strike with open interest for the 2027-01-15 expiration: (call gamma × call OI minus put gamma × put OI) × 100 × spot² × 1%, summed. Calls count as positive and puts as negative, a convention about who holds the other side, not a measurement.
Event risk before this expiration: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 — 570 — is the max pain price.
Open interest by strike · Fri, Jan 15
■ calls (up)■ puts (down)MA open contracts per strike for Fri, Jan 15. Showing the 60 largest of 75 strikes by open interest, 97.1% of the total.
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 ≈ 22.5% · 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
0.86
-0.11
600
0.0029
0.67
-0.12
-0.14
0.85
-0.11
605
0.0032
0.71
-0.12
-0.16
0.83
-0.12
610
0.0034
0.76
-0.13
-0.17
0.80
-0.14
620
0.0039
0.85
-0.14
-0.21
0.75
-0.15
630
0.0044
0.94
-0.15
-0.25
0.71
-0.16
640
0.0049
1.02
-0.17
-0.30
0.66
-0.17
650
0.0054
1.09
-0.18
-0.35
0.60
-0.18
660
0.0057
1.15
-0.18
-0.41
0.48
-0.18
680
0.0060
1.18
-0.18
-0.53
0.37
-0.17
700
0.0058
1.12
-0.17
-0.65
0.26
-0.14
720
0.0050
0.97
-0.15
-0.76
0.18
-0.11
740
0.0040
0.78
-0.13
-0.86
0.11
-0.08
760
0.0030
0.59
-0.09
-0.93
0.02
-0.02
840
0.0007
0.16
-0.06
-1.00
0.02
-0.02
860
0.0005
0.12
-0.06
-1.00
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.
Max pain, walls and gamma print only when an expiration holds at least 100 open contracts across 5 strikes, and max pain also needs to stay within 5% of spot when its single heaviest strike is removed. Below that the expiration reads as thin rather than printing a level one trade could move.
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.