CCOI vs. AY

Last updated Apr 2, 2026

Compare and contrast key facts about Cogent Communications Holdings, Inc. (CCOI) and Atlantica Sustainable Infrastructure plc (AY).

Performance

CCOI vs. AY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Cogent Communications Holdings, Inc. (CCOI) and Atlantica Sustainable Infrastructure plc (AY). The values are adjusted to include any dividend payments, if applicable.

CCOI vs. AY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CCOI Cogent Communications Holdings, Inc.	-15.00%	-70.14%	7.19%	41.23%	-17.20%	27.78%	-5.33%	51.98%	4.25%	14.33%
AY Atlantica Sustainable Infrastructure plc	0.00%	0.00%	10.22%	-10.32%	-23.47%	-1.43%	52.41%	44.34%	-1.12%	15.14%

Fundamentals

Total Revenue (TTM) CCOI : $956.56M AY : $1.16B
Gross Profit (TTM) CCOI : $307.09M AY : $895.36M
EBITDA (TTM) CCOI : $179.54M AY : $883.90M

Returns By Period

CCOI

• 1D: -2.81%
• 1M: -17.41%
• YTD: -15.00%
• 6M: -53.07%
• 1Y: -68.73%
• 3Y*: -30.26%
• 5Y*: -18.87%
• 10Y*: -2.85%

AY

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

CCOI vs. AY — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

CCOI

CCOI Risk / Return Rank: 6
CCOI Sharpe Ratio Rank: 6
CCOI Sortino Ratio Rank: 7
CCOI Omega Ratio Rank: 6
CCOI Calmar Ratio Rank: 4
CCOI Martin Ratio Rank: 8

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

CCOI vs. AY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Cogent Communications Holdings, Inc. (CCOI) and Atlantica Sustainable Infrastructure plc (AY). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	CCOI	AY	Difference
Sharpe ratio Return per unit of total volatility	-0.89	—	—
Sortino ratio Return per unit of downside risk	-1.27	—	—
Omega ratio Gain probability vs. loss probability	0.81	—	—
Calmar ratio Return relative to maximum drawdown	-0.96	—	—
Martin ratio Return relative to average drawdown	-1.53	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	CCOI	AY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.89	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.43	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.07	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.06	—	—

Correlation

The correlation between CCOI and AY is 0.18, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

CCOI vs. AY - Dividend Comparison

CCOI's dividend yield for the trailing twelve months is around 11.28%, while AY has not paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CCOI Cogent Communications Holdings, Inc.	11.28%	14.15%	5.09%	4.94%	6.23%	4.33%	4.64%	3.71%	4.69%	3.97%	3.65%	4.21%
AY Atlantica Sustainable Infrastructure plc	0.00%	0.00%	7.08%	8.28%	6.83%	4.80%	4.37%	5.95%	6.79%	4.95%	2.34%	7.41%

Drawdowns

Drawdown Indicators

	CCOI	AY	Difference
Max Drawdown Largest peak-to-trough decline	-96.52%	—	—
Max Drawdown (1Y) Largest decline over 1 year	-71.57%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-78.91%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-78.91%	—	—
Current Drawdown Current decline from peak	-76.80%	—	—
Average Drawdown Average peak-to-trough decline	-59.07%	—	—
Ulcer Index Depth and duration of drawdowns from previous peaks	44.85%	—	—

Volatility

Volatility by Period

	CCOI	AY	Difference
Volatility (1M) Calculated over the trailing 1-month period	21.11%	—	—
Volatility (6M) Calculated over the trailing 6-month period	73.84%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	77.65%	—	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	44.06%	—	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	38.70%	—	—

Financials