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 19.37%/yr vs 3.62%/yr for T. At a 0.28 correlation, their price movements are largely independent.
Performance
CSCO vs. T - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, CSCO achieves a 66.00% return, which is significantly higher than T's -3.08% return. Over the past 10 years, CSCO has outperformed T with an annualized return of 19.37%, while T has yielded a comparatively lower 3.62% annualized return.
CSCO
- 1D
- -1.17%
- 1M
- 36.56%
- YTD
- 66.00%
- 6M
- 64.46%
- 1Y
- 101.07%
- 3Y*
- 40.06%
- 5Y*
- 21.97%
- 10Y*
- 19.37%
T
- 1D
- -4.42%
- 1M
- -9.77%
- YTD
- -3.08%
- 6M
- -4.92%
- 1Y
- -12.10%
- 3Y*
- 22.12%
- 5Y*
- 7.39%
- 10Y*
- 3.62%
CSCO vs. T - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
CSCO Cisco Systems, Inc. | 66.00% | 33.47% | 21.00% | 9.30% | -22.46% | 45.76% | -3.49% | 13.81% | 16.57% | 31.27% |
T AT&T Inc. | -3.08% | 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 -0.03, 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 | -0.03 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.10 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.24 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.29 |
Correlation (All Time) Calculated using the full available price history since Mar 27, 1990 | 0.28 |
The correlation between CSCO and T shifts across timeframes, from -0.03 (1 year) to 0.29 (10 years), reflecting how their relationship changes across market environments.
Fundamentals
CSCO:
$3.00
T:
$3.04
CSCO:
42.21
T:
7.73
CSCO:
35.41
T:
0.32
CSCO:
8.31
T:
1.35
CSCO:
$60.75B
T:
$125.65B
CSCO:
$39.08B
T:
$105.41B
CSCO:
$13.98B
T:
$54.70B
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
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.
| CSCO | T | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +3.96 | ||
| Sortino ratioReturn per unit of downside risk | +4.66 | ||
| Omega ratioGain probability vs. loss probability | 1.61 | 0.92 | +0.69 |
| Calmar ratioReturn relative to maximum drawdown | 7.49 | -0.59 | +8.08 |
| Martin ratioReturn relative to average drawdown | 21.00 | -1.20 | +22.20 |
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
| CSCO | T | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 3.40 | -0.56 | +3.96 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.90 | 0.31 | +0.59 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.75 | 0.15 | +0.60 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.61 | 0.38 | +0.23 |
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.
Loading charts...
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% | -20.60% | +7.03% |
Max Drawdown (3Y)Largest decline over 3 years | -20.16% | -20.60% | +0.44% |
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 | -1.17% | -18.23% | +17.06% |
Average DrawdownAverage peak-to-trough decline | -40.14% | -15.72% | -24.42% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.83% | 10.08% | -5.25% |
Volatility
CSCO vs. T - Volatility Comparison
Cisco Systems, Inc. (CSCO) has a higher volatility of 15.37% compared to AT&T Inc. (T) at 6.96%. 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.
Loading charts...
Volatility by Period
| CSCO | T | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 15.37% | 6.96% | +8.41% |
Volatility (6M)Calculated over the trailing 6-month period | 25.85% | 17.27% | +8.58% |
Volatility (1Y)Calculated over the trailing 1-year period | 29.87% | 21.86% | +8.01% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 24.62% | 23.92% | +0.70% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 25.76% | 23.69% | +2.07% |
Dividends
CSCO vs. T - Dividend Comparison
CSCO's dividend yield for the trailing twelve months is around 1.30%, less than T's 4.71% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CSCO Cisco Systems, Inc. | 1.30% | 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
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 -0.03, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CSCO has higher volatility (15.37%) compared to T (6.96%). In terms of maximum drawdown, CSCO dropped -89.26% vs T's -64.15%.
CSCO currently has the higher Sharpe Ratio (3.40 vs -0.56), 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.
Find the right allocation for CSCO and T
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