CSCO vs. T
CSCO (Cisco Systems, Inc.) and T (AT&T Inc.) are both stocks. CSCO operates in Communication Equipment (Technology), while T operates in Telecom Services (Communication Services). Over the past 10 years, CSCO returned 19.44%/yr vs 2.70%/yr for T. At a 0.28 correlation, their price movements are largely independent.
Performance
CSCO vs. T - Performance Comparison
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Returns By Period
In the year-to-date period, CSCO achieves a 58.97% return, which is significantly higher than T's -6.13% return. Over the past 10 years, CSCO has outperformed T with an annualized return of 19.44%, while T has yielded a comparatively lower 2.70% annualized return.
CSCO
- 1D
- -0.31%
- 1M
- 0.61%
- YTD
- 58.97%
- 6M
- 56.96%
- 1Y
- 83.94%
- 3Y*
- 37.78%
- 5Y*
- 21.50%
- 10Y*
- 19.44%
T
- 1D
- 3.21%
- 1M
- -9.70%
- YTD
- -6.13%
- 6M
- -4.67%
- 1Y
- -15.59%
- 3Y*
- 20.20%
- 5Y*
- 7.06%
- 10Y*
- 2.70%
CSCO vs. T - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
CSCO Cisco Systems, Inc. | 58.97% | 33.47% | 21.00% | 9.30% | -22.46% | 45.76% | -3.49% | 13.81% | 16.57% | 31.27% |
T AT&T Inc. | -6.13% | 13.97% | 44.08% | -2.74% | 5.76% | -8.09% | -21.37% | 45.55% | -22.25% | -4.01% |
Correlation
The correlation between CSCO and T is -0.07, 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 | -0.07 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.08 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.23 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.28 |
Correlation (All Time) Calculated using the full available price history since Mar 26, 1990 | 0.28 |
The correlation between CSCO and T shifts across timeframes, from -0.07 (1 year) to 0.28 (10 years), reflecting how their relationship changes across market environments.
Fundamentals
CSCO:
$3.00
T:
$3.04
CSCO:
40.42
T:
7.49
CSCO:
33.92
T:
0.31
CSCO:
7.96
T:
1.31
CSCO:
$60.75B
T:
$125.65B
CSCO:
$39.08B
T:
$105.41B
CSCO:
$13.98B
T:
$54.70B
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Return for Risk
CSCO vs. T — Risk / Return Rank
CSCO
T
CSCO vs. T - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Cisco Systems, Inc. (CSCO) and AT&T Inc. (T). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| CSCO | T | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +3.42 | ||
| Sortino ratioReturn per unit of downside risk | +4.18 | ||
| Omega ratioGain probability vs. loss probability | 1.50 | 0.90 | +0.60 |
| Calmar ratioReturn relative to maximum drawdown | 6.22 | -0.66 | +6.88 |
| Martin ratioReturn relative to average drawdown | 16.58 | -1.40 | +17.98 |
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Drawdowns
CSCO vs. T - Drawdown Comparison
The maximum CSCO drawdown since its inception was -89.26%, which is greater than T's maximum drawdown of -64.15%. Use the drawdown chart below to compare losses from any high point for CSCO and T.
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Drawdown Indicators
| CSCO | T | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -89.26% | -64.15% | -25.11% |
Max Drawdown (1Y)Largest decline over 1 year | -13.57% | -23.57% | +10.00% |
Max Drawdown (3Y)Largest decline over 3 years | -20.16% | -23.57% | +3.41% |
Max Drawdown (5Y)Largest decline over 5 years | -36.68% | -32.01% | -4.67% |
Max Drawdown (10Y)Largest decline over 10 years | -41.95% | -42.35% | +0.40% |
Current DrawdownCurrent decline from peak | -6.81% | -20.80% | +13.99% |
Average DrawdownAverage peak-to-trough decline | -40.09% | -15.72% | -24.37% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.08% | 11.14% | -6.06% |
Volatility
CSCO vs. T - Volatility Comparison
Cisco Systems, Inc. (CSCO) has a higher volatility of 11.48% compared to AT&T Inc. (T) at 8.49%. This indicates that CSCO's price experiences larger fluctuations and is considered to be riskier than T based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CSCO | T | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 11.48% | 8.49% | +2.99% |
Volatility (6M)Calculated over the trailing 6-month period | 27.21% | 18.37% | +8.84% |
Volatility (1Y)Calculated over the trailing 1-year period | 30.97% | 22.66% | +8.31% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 24.89% | 24.12% | +0.77% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 25.87% | 23.79% | +2.08% |
Dividends
CSCO vs. T - Dividend Comparison
CSCO's dividend yield for the trailing twelve months is around 1.36%, less than T's 4.87% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CSCO Cisco Systems, Inc. | 1.36% | 2.12% | 2.69% | 3.07% | 3.17% | 2.32% | 3.20% | 2.88% | 2.95% | 2.95% | 3.28% | 3.02% |
T AT&T Inc. | 4.87% | 4.47% | 4.87% | 6.62% | 6.66% | 8.46% | 7.23% | 5.22% | 7.01% | 5.04% | 4.51% | 5.46% |
Financials
CSCO vs. T - Financials Comparison
This section allows you to compare key financial metrics between Cisco Systems, Inc. and AT&T 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
CSCO and T have a correlation of -0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CSCO has higher volatility (11.48%) compared to T (8.49%). In terms of maximum drawdown, CSCO dropped -89.26% vs T's -64.15%.
CSCO currently has the higher Sharpe Ratio (2.73 vs -0.69), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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