SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 10, 6:51 PM ET
How14 put contracts / 6 call contracts = 2.33 for the 2029-01-19 expiration. Open interest is published once a day, before the open, so it describes the previous session.
Too thin to read: 20 open contracts across 13 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
Event risk before this expiration: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: 20 open contracts across 13 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
Open interest by strike · Fri, Jan 19
■ calls (up)■ puts (down)PRIM open contracts per strike for Fri, Jan 19.
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 19
Implied volatility by strike · Fri, Jan 19
— call IV— put IVATM ≈ 61.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Greeks by strike · Fri, Jan 19
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.91
-0.00
32.5
0.0022
0.16
-0.01
-0.09
0.90
-0.00
35
0.0025
0.18
-0.01
-0.10
0.89
-0.00
37.5
0.0027
0.19
-0.01
-0.11
0.88
-0.00
40
0.0030
0.21
-0.01
-0.13
0.86
-0.00
42.5
0.0032
0.22
-0.01
-0.14
0.85
-0.01
45
0.0035
0.24
-0.01
-0.15
0.82
-0.01
50
0.0039
0.26
-0.01
-0.18
0.70
-0.01
72.5
0.0055
0.35
-0.01
-0.32
0.68
-0.01
77.5
0.0057
0.37
-0.01
-0.35
0.59
-0.01
95
0.0062
0.40
-0.01
-0.46
0.57
-0.01
100
0.0063
0.40
-0.01
-0.49
0.53
-0.01
110
0.0063
0.41
-0.01
-0.54
0.47
-0.01
125
0.0063
0.41
-0.01
-0.61
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. 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.