T vs. CSCO
T (AT&T Inc.) and CSCO (Cisco Systems, Inc.) are both stocks. T operates in Telecom Services (Communication Services), while CSCO operates in Communication Equipment (Technology). Over the past 10 years, T returned 3.33%/yr vs 18.92%/yr for CSCO. At a 0.28 correlation, their price movements are largely independent.
Performance
T vs. CSCO - Performance Comparison
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Returns By Period
In the year-to-date period, T achieves a -2.96% return, which is significantly lower than CSCO's 58.91% return. Over the past 10 years, T has underperformed CSCO with an annualized return of 3.33%, while CSCO has yielded a comparatively higher 18.92% annualized return.
T
- 1D
- 2.52%
- 1M
- -4.69%
- YTD
- -2.96%
- 6M
- -1.93%
- 1Y
- -12.96%
- 3Y*
- 20.58%
- 5Y*
- 7.38%
- 10Y*
- 3.33%
CSCO
- 1D
- -0.60%
- 1M
- 18.88%
- YTD
- 58.91%
- 6M
- 57.34%
- 1Y
- 90.30%
- 3Y*
- 37.33%
- 5Y*
- 20.60%
- 10Y*
- 18.92%
T vs. CSCO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
T AT&T Inc. | -2.96% | 13.97% | 44.08% | -2.74% | 5.76% | -8.09% | -21.37% | 45.55% | -22.25% | -4.01% |
CSCO Cisco Systems, Inc. | 58.91% | 33.47% | 21.00% | 9.30% | -22.46% | 45.76% | -3.49% | 13.81% | 16.57% | 31.27% |
Correlation
The correlation between T and CSCO 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 | 0.09 |
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 T and CSCO shifts across timeframes, from -0.07 (1 year) to 0.28 (10 years), reflecting how their relationship changes across market environments.
Fundamentals
T:
$3.04
CSCO:
$3.00
T:
7.74
CSCO:
40.40
T:
0.32
CSCO:
33.90
T:
1.35
CSCO:
7.95
T:
$125.65B
CSCO:
$60.75B
T:
$105.41B
CSCO:
$39.08B
T:
$54.70B
CSCO:
$13.98B
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Return for Risk
T vs. CSCO — Risk / Return Rank
T
CSCO
T vs. CSCO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for AT&T Inc. (T) and Cisco Systems, Inc. (CSCO). 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.
| T | CSCO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -3.52 | ||
| Sortino ratioReturn per unit of downside risk | -4.19 | ||
| Omega ratioGain probability vs. loss probability | 0.92 | 1.53 | -0.61 |
| Calmar ratioReturn relative to maximum drawdown | -0.59 | 6.69 | -7.28 |
| Martin ratioReturn relative to average drawdown | -1.22 | 18.37 | -19.59 |
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Drawdowns
T vs. CSCO - Drawdown Comparison
The maximum T drawdown since its inception was -64.15%, smaller than the maximum CSCO drawdown of -89.26%. Use the drawdown chart below to compare losses from any high point for T and CSCO.
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Drawdown Indicators
| T | CSCO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -64.15% | -89.26% | +25.11% |
Max Drawdown (1Y)Largest decline over 1 year | -21.87% | -13.57% | -8.30% |
Max Drawdown (3Y)Largest decline over 3 years | -21.87% | -20.16% | -1.71% |
Max Drawdown (5Y)Largest decline over 5 years | -32.01% | -36.68% | +4.67% |
Max Drawdown (10Y)Largest decline over 10 years | -42.35% | -41.95% | -0.40% |
Current DrawdownCurrent decline from peak | -18.12% | -6.85% | -11.27% |
Average DrawdownAverage peak-to-trough decline | -15.72% | -40.11% | +24.39% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 10.64% | 4.93% | +5.71% |
Volatility
T vs. CSCO - Volatility Comparison
The current volatility for AT&T Inc. (T) is 8.21%, while Cisco Systems, Inc. (CSCO) has a volatility of 17.31%. This indicates that T experiences smaller price fluctuations and is considered to be less risky than CSCO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| T | CSCO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 8.21% | 17.31% | -9.10% |
Volatility (6M)Calculated over the trailing 6-month period | 17.80% | 27.29% | -9.49% |
Volatility (1Y)Calculated over the trailing 1-year period | 22.13% | 30.93% | -8.80% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 24.01% | 24.88% | -0.87% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 23.73% | 25.89% | -2.16% |
Dividends
T vs. CSCO - Dividend Comparison
T's dividend yield for the trailing twelve months is around 4.71%, more than CSCO's 1.36% 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. | 4.71% | 4.47% | 4.87% | 6.62% | 6.66% | 8.46% | 7.23% | 5.22% | 7.01% | 5.04% | 4.51% | 5.46% |
Financials
T vs. CSCO - Financials Comparison
This section allows you to compare key financial metrics between AT&T Inc. and Cisco Systems, 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
T and CSCO 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 (17.31%) compared to T (8.21%). In terms of maximum drawdown, T dropped -64.15% vs CSCO's -89.26%.
CSCO currently has the higher Sharpe Ratio (2.94 vs -0.59), 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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