TEF.MC vs. CCOI
TEF.MC (Telefonica) and CCOI (Cogent Communications Holdings, Inc.) are both stocks. Both operate in the Telecom Services industry within the Communication Services sector. Over the past 10 years, TEF.MC returned -2.94%/yr vs -4.12%/yr for CCOI. At a 0.18 correlation, their price movements are largely independent.
Performance
TEF.MC vs. CCOI - Performance Comparison
Loading charts...
Different Trading Currencies
TEF.MC is traded in EUR, while CCOI is traded in USD. To make them comparable, the CCOI values have been converted to EUR using the latest available exchange rates.
Returns By Period
In the year-to-date period, TEF.MC achieves a 12.02% return, which is significantly higher than CCOI's -20.24% return. Over the past 10 years, TEF.MC has outperformed CCOI with an annualized return of -2.94%, while CCOI has yielded a comparatively lower -4.12% annualized return.
TEF.MC
- 1D
- -0.66%
- 1M
- 0.00%
- YTD
- 12.02%
- 6M
- 10.31%
- 1Y
- -11.69%
- 3Y*
- 6.14%
- 5Y*
- 6.09%
- 10Y*
- -2.94%
CCOI
- 1D
- -1.88%
- 1M
- 3.54%
- YTD
- -20.24%
- 6M
- -13.14%
- 1Y
- -63.64%
- 3Y*
- -33.49%
- 5Y*
- -21.07%
- 10Y*
- -4.12%
TEF.MC vs. CCOI - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TEF.MC Telefonica | 12.02% | -5.79% | 18.10% | 11.17% | -6.72% | 27.46% | -43.82% | -11.15% | -5.78% | -4.57% |
CCOI Cogent Communications Holdings, Inc. | -20.24% | -73.68% | 14.27% | 37.00% | -12.07% | 37.34% | -13.13% | 55.41% | 9.15% | 0.28% |
Correlation
The correlation between TEF.MC and CCOI is 0.02, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.02 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.06 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.10 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.13 |
Correlation (All Time) Calculated using the full available price history since Aug 29, 2007 | 0.18 |
The correlation between TEF.MC and CCOI shifts across timeframes, from 0.02 (1 year) to 0.18 (all time), reflecting how their relationship changes across market environments.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
TEF.MC vs. CCOI — Risk / Return Rank
TEF.MC
CCOI
TEF.MC vs. CCOI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Telefonica (TEF.MC) and Cogent Communications Holdings, Inc. (CCOI). 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.
| TEF.MC | CCOI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.32 | ||
| Sortino ratioReturn per unit of downside risk | +0.43 | ||
| Omega ratioGain probability vs. loss probability | 0.94 | 0.87 | +0.07 |
| Calmar ratioReturn relative to maximum drawdown | -0.34 | -0.92 | +0.58 |
| Martin ratioReturn relative to average drawdown | -0.60 | -1.35 | +0.75 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| TEF.MC | CCOI | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -0.43 | -0.75 | +0.32 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.28 | -0.44 | +0.73 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | -0.11 | -0.10 | -0.01 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.22 | 0.05 | +0.17 |
Drawdowns
TEF.MC vs. CCOI - Drawdown Comparison
The maximum TEF.MC drawdown since its inception was -77.98%, smaller than the maximum CCOI drawdown of -86.50%. Use the drawdown chart below to compare losses from any high point for TEF.MC and CCOI.
Loading charts...
Drawdown Indicators
| TEF.MC | CCOI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -77.98% | -86.50% | +8.52% |
Max Drawdown (1Y)Largest decline over 1 year | -31.46% | -69.62% | +38.16% |
Max Drawdown (3Y)Largest decline over 3 years | -31.46% | -82.03% | +50.57% |
Max Drawdown (5Y)Largest decline over 5 years | -34.23% | -82.03% | +47.80% |
Max Drawdown (10Y)Largest decline over 10 years | -69.15% | -82.03% | +12.88% |
Current DrawdownCurrent decline from peak | -56.07% | -80.48% | +24.41% |
Average DrawdownAverage peak-to-trough decline | -36.20% | -27.13% | -9.07% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 18.07% | 47.26% | -29.19% |
Volatility
TEF.MC vs. CCOI - Volatility Comparison
The current volatility for Telefonica (TEF.MC) is 7.68%, while Cogent Communications Holdings, Inc. (CCOI) has a volatility of 22.44%. This indicates that TEF.MC experiences smaller price fluctuations and is considered to be less risky than CCOI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| TEF.MC | CCOI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.68% | 22.44% | -14.76% |
Volatility (6M)Calculated over the trailing 6-month period | 17.74% | 68.78% | -51.04% |
Volatility (1Y)Calculated over the trailing 1-year period | 25.16% | 85.44% | -60.28% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 21.15% | 47.60% | -26.45% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 25.55% | 41.15% | -15.60% |
Dividends
TEF.MC vs. CCOI - Dividend Comparison
TEF.MC's dividend yield for the trailing twelve months is around 6.21%, less than CCOI's 6.39% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CCOI Cogent Communications Holdings, Inc. | 6.39% | 14.15% | 5.09% | 4.94% | 6.23% | 4.33% | 4.64% | 3.71% | 4.69% | 3.97% | 3.65% | 4.21% |
TEF.MC Telefonica | 6.21% | 6.96% | 6.17% | 6.88% | 7.13% | 7.28% | 9.66% | 5.20% | 4.41% | 3.99% | 6.80% | 5.84% |
Financials
TEF.MC vs. CCOI - Financials Comparison
This section allows you to compare key financial metrics between Telefonica and Cogent Communications Holdings, Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
Frequently Asked Questions
TEF.MC and CCOI have a correlation of 0.02, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
Find the right allocation for TEF.MC and CCOI
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer