SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 3, 6:07 AM ET
How63 put contracts / 26 call contracts = 2.42 for the 2026-12-11 expiration. Open interest is published once a day, before the open, so it describes the previous session.
Too thin to read: 89 open contracts across 14 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
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.
Too thin to read: 89 open contracts across 14 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
Open interest by strike · Fri, Dec 11
■ calls (up)■ puts (down)BITX open contracts per strike for Fri, Dec 11.
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, Dec 11
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Dec 11
— call IV— put IVATM ≈ 85.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Greeks by strike · Fri, Dec 11
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.94
-0.01
12
0.0403
0.01
-0.01
-0.12
0.88
-0.01
13
0.0599
0.01
-0.01
-0.18
0.71
-0.02
15
0.0968
0.02
-0.02
-0.36
0.65
-0.02
15.5
0.1026
0.02
-0.02
-0.41
0.60
-0.02
16
0.1064
0.02
-0.02
-0.46
0.55
-0.02
16.5
0.1082
0.02
-0.02
-0.52
0.50
-0.02
17
0.1081
0.02
-0.02
-0.57
0.45
-0.02
17.5
0.1064
0.02
-0.02
-0.62
0.40
-0.02
18
0.1033
0.02
-0.02
-0.66
0.36
-0.02
18.5
0.0992
0.02
-0.02
-0.71
0.28
-0.02
19.5
0.0889
0.02
-0.02
-0.78
0.25
-0.02
20
0.0831
0.02
-0.01
-0.81
0.20
-0.01
21
0.0711
0.01
-0.01
-0.87
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 13 strikes around the money — all 14 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.