CCOI · Cogent Communications Holdings, Inc.

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$12.69 -0.26 (-2.01%) At close · Jul 29

Market Cap

$648.51M

50.08M

Options Chain

15-min delayed Underlying $12.69 · at close Jul 29, 2026 Options Calculator

Positioning

Aug 21, 2026 · 22 days to expiry · 22 contracts

Put / call OI

1.40

Put-heavy positioning

Open interest

8,580

contracts outstanding

Volume

302

traded today

Max pain

$12.50

$0.19 below spot

ATM implied vol

128.4%

market's expected move

Open interest by strike

Calls Puts

2.5

7.5

12.5

17.5

22.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 22d Sep 18 50d Oct 16 78d Dec 18 141d Jan 15 169d Jan 21 540d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	381%	0.986	—		$0.10	—	—	4	6
Call · $2.5 In the money Last — Breakeven — Implied vol 381% Delta 0.986 ≈99% ITM Gamma 0.003 Theta -0.008 Vega 0.001 Open interest 0 Model this call Put · $2.5 Last $0.10 Breakeven $2.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 Model this put
0	—	268.6%	0.958	—		$0.05	—	—	100	133
Call · $5 In the money Last — Breakeven — Implied vol 268.6% Delta 0.958 ≈96% ITM Gamma 0.011 Theta -0.015 Vega 0.003 Open interest 0 Model this call Put · $5 Last $0.05 Breakeven $4.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 133 Model this put
5	2	—	—	$6.05		$0.28	-0.07	166.3%	1	113
Call · $7.5 In the money Last $6.05 Breakeven $13.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 Model this call Put · $7.5 Last $0.28 Breakeven $7.22 Implied vol 166.3% Delta -0.07 ≈7% ITM Gamma 0.026 Theta -0.016 Vega 0.004 Open interest 113 Model this put
26	1	136.3%	0.806	$2.31		$0.62	-0.195	139.4%	10	1.1k
Call · $10 In the money Last $2.31 Breakeven $12.31 Implied vol 136.3% Delta 0.806 ≈81% ITM Gamma 0.065 Theta -0.025 Vega 0.01 Open interest 26 Model this call Put · $10 Last $0.62 Breakeven $9.38 Implied vol 139.4% Delta -0.195 ≈20% ITM Gamma 0.063 Theta -0.027 Vega 0.01 Open interest 1.1k Model this put
763	10	130.2%	0.578	$1.75		$1.60	-0.42	126.6%	98	3.2k
Call · $12.5 In the money Last $1.75 Breakeven $14.25 Implied vol 130.2% Delta 0.578 ≈58% ITM Gamma 0.096 Theta -0.035 Vega 0.012 Open interest 763 Model this call Put · $12.5 Last $1.60 Breakeven $10.90 Implied vol 126.6% Delta -0.42 ≈42% ITM Gamma 0.099 Theta -0.035 Vega 0.012 Open interest 3.2k Model this put
Underlying $12.69
945	33	120.9%	0.34	$0.75		$2.90	-0.654	121.6%	1	334
Call · $15 Last $0.75 Breakeven $15.75 Implied vol 120.9% Delta 0.34 ≈34% ITM Gamma 0.096 Theta -0.03 Vega 0.012 Open interest 945 Model this call Put · $15 In the money Last $2.90 Breakeven $12.10 Implied vol 121.6% Delta -0.654 ≈65% ITM Gamma 0.095 Theta -0.032 Vega 0.012 Open interest 334 Model this put
1.3k	8	116.2%	0.16	$0.40		$6.33	-0.807	125.8%	2	52
Call · $17.5 Last $0.40 Breakeven $17.90 Implied vol 116.2% Delta 0.16 ≈16% ITM Gamma 0.067 Theta -0.02 Vega 0.006 Open interest 1.3k Model this call Put · $17.5 In the money Last $6.33 Breakeven $11.17 Implied vol 125.8% Delta -0.807 ≈81% ITM Gamma 0.068 Theta -0.025 Vega 0.01 Open interest 52 Model this put
90	3	154.8%	0.158	$0.16		$8.89	-0.832	157.6%	2	3
Call · $20 Last $0.16 Breakeven $20.16 Implied vol 154.8% Delta 0.158 ≈16% ITM Gamma 0.05 Theta -0.026 Vega 0.007 Open interest 90 Model this call Put · $20 In the money Last $8.89 Breakeven $11.11 Implied vol 157.6% Delta -0.832 ≈83% ITM Gamma 0.05 Theta -0.028 Vega 0.007 Open interest 3 Model this put
14	4	164.9%	0.114	$0.10		$11.05	-0.823	196%	10	3
Call · $22.5 Last $0.10 Breakeven $22.60 Implied vol 164.9% Delta 0.114 ≈11% ITM Gamma 0.037 Theta -0.022 Vega 0.007 Open interest 14 Model this call Put · $22.5 In the money Last $11.05 Breakeven $11.45 Implied vol 196% Delta -0.823 ≈82% ITM Gamma 0.042 Theta -0.036 Vega 0.007 Open interest 3 Model this put
124	11	230.5%	0.183	$0.05		—	-0.931	160.3%	—	0
Call · $25 Last $0.05 Breakeven $25.05 Implied vol 230.5% Delta 0.183 ≈18% ITM Gamma 0.036 Theta -0.043 Vega 0.007 Open interest 124 Model this call Put · $25 In the money Last — Breakeven — Implied vol 160.3% Delta -0.931 ≈93% ITM Gamma 0.025 Theta -0.015 Vega 0.004 Open interest 0 Model this put
326	2	197.8%	0.064	$0.05		—	—	—	—	0
Call · $30 Last $0.05 Breakeven $30.05 Implied vol 197.8% Delta 0.064 ≈6% ITM Gamma 0.02 Theta -0.017 Vega 0.005 Open interest 326 Model this call Put · $30 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1158324 CUSIP 19239V302 13F (30d) 41 filings 41 filers Visit website Investor relations