SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 10, 8:34 PM ET
How7,843 put contracts / 10,201 call contracts = 0.77 for the 2026-11-20 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 10, 8:34 PM ET
HowOver every strike with open interest for the 2026-11-20 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.
Max pain is not shown: without its single heaviest strike it moves 8.2% of spot, more than the 5% we allow, so one strike decides it. Walls and gamma still print.
Max pain is not shown: without its single heaviest strike it moves 8.2% of spot, more than the 5% we allow, so one strike decides it. Walls and gamma still print.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)CAVA open contracts per strike for Fri, Nov 20.
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, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 58.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
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, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.87
-0.06
54
0.0333
0.02
-0.07
-0.13
0.83
-0.08
55
0.0400
0.03
-0.08
-0.17
0.79
-0.09
56
0.0469
0.03
-0.09
-0.21
0.74
-0.10
57
0.0535
0.03
-0.10
-0.27
0.68
-0.11
58
0.0592
0.04
-0.11
-0.32
0.62
-0.12
59
0.0636
0.04
-0.12
-0.39
0.55
-0.12
60
0.0663
0.04
-0.12
-0.45
0.49
-0.12
61
0.0670
0.04
-0.12
-0.52
0.42
-0.12
62
0.0658
0.04
-0.12
-0.59
0.36
-0.11
63
0.0628
0.04
-0.11
-0.65
0.30
-0.10
64
0.0585
0.04
-0.11
-0.71
0.25
-0.10
65
0.0531
0.03
-0.10
-0.76
0.21
-0.09
66
0.0473
0.03
-0.09
-0.80
0.17
-0.07
67
0.0413
0.03
-0.08
-0.84
0.14
-0.07
68
0.0355
0.02
-0.07
-0.88
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 33 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.