T vs. STX
T (AT&T Inc.) and STX (Seagate Technology plc) are both stocks. T operates in Telecom Services (Communication Services), while STX operates in Computer Hardware (Technology). Over the past 10 years, T returned 2.10%/yr vs 44.07%/yr for STX. At a 0.22 correlation, their price movements are largely independent.
Performance
T vs. STX - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, T achieves a -7.04% return, which is significantly lower than STX's 192.10% return. Over the past 10 years, T has underperformed STX with an annualized return of 2.10%, while STX has yielded a comparatively higher 44.07% annualized return.
T
- 1D
- 0.64%
- 1M
- 2.62%
- 6M
- -2.84%
- YTD
- -7.04%
- 1Y
- -13.37%
- 3Y*
- 20.93%
- 5Y*
- 7.13%
- 10Y*
- 2.10%
- ALL TIME*
- 9.35%
STX
- 1D
- 1.88%
- 1M
- -24.97%
- 6M
- 146.58%
- YTD
- 192.10%
- 1Y
- 442.73%
- 3Y*
- 143.47%
- 5Y*
- 62.35%
- 10Y*
- 44.07%
- ALL TIME*
- 23.72%
T vs. STX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
T AT&T Inc. | -7.04% | 13.97% | 44.08% | -2.74% | 5.76% | -8.09% | -21.37% | 45.55% | -22.25% | -4.01% |
STX Seagate Technology plc | 192.10% | 225.26% | 4.06% | 69.12% | -51.42% | 87.50% | 10.14% | 62.14% | -2.90% | 16.67% |
Correlation
The correlation between T and STX is -0.21, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | -0.21 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.08 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.09 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.17 |
Correlation (All Time) Calculated using the full available price history since Dec 11, 2002 | 0.22 |
The correlation between T and STX shifts across timeframes, from -0.21 (1 year) to 0.22 (all time), reflecting how their relationship changes across market environments.
Fundamentals
T:
$152.52B
STX:
$179.93B
T:
$3.05
STX:
$10.48
T:
7.19
STX:
76.60
T:
0.30
STX:
0.92
T:
1.25
STX:
16.54
T:
$125.65B
STX:
$11.01B
T:
$105.41B
STX:
$4.57B
T:
$54.70B
STX:
$2.59B
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
T vs. STX — Risk / Return Rank
T
STX
T vs. STX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for AT&T Inc. (T) and Seagate Technology plc (STX). 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 | STX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -6.95 | ||
| Sortino ratioReturn per unit of downside risk | -5.33 | ||
| Omega ratioGain probability vs. loss probability | 0.92 | 1.59 | -0.67 |
| Calmar ratioReturn relative to maximum drawdown | -0.46 | 14.03 | -14.50 |
| Martin ratioReturn relative to average drawdown | -1.03 | 49.15 | -50.19 |
Loading charts...
Drawdowns
T vs. STX - Drawdown Comparison
The maximum T drawdown since its inception was -64.15%, smaller than the maximum STX drawdown of -88.74%. Use the drawdown chart below to compare losses from any high point for T and STX.
Loading charts...
Drawdown Indicators
| T | STX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -64.15% | -88.74% | +24.59% |
Max Drawdown (1Y)Largest decline over 1 year | -28.89% | -31.81% | +2.92% |
Max Drawdown (3Y)Largest decline over 3 years | -28.89% | -40.00% | +11.11% |
Max Drawdown (5Y)Largest decline over 5 years | -32.01% | -56.99% | +24.98% |
Max Drawdown (10Y)Largest decline over 10 years | -42.35% | -56.99% | +14.64% |
Current DrawdownCurrent decline from peak | -21.57% | -26.60% | +5.03% |
Average DrawdownAverage peak-to-trough decline | -15.74% | -26.39% | +10.65% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 12.94% | 9.06% | +3.88% |
Volatility
T vs. STX - Volatility Comparison
The current volatility for AT&T Inc. (T) is 9.59%, while Seagate Technology plc (STX) has a volatility of 27.07%. This indicates that T experiences smaller price fluctuations and is considered to be less risky than STX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| T | STX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 9.59% | 27.07% | -17.48% |
Volatility (6M)Calculated over the trailing 6-month period | 19.91% | 53.95% | -34.04% |
Volatility (1Y)Calculated over the trailing 1-year period | 23.72% | 70.03% | -46.31% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 24.38% | 46.44% | -22.06% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 23.92% | 42.33% | -18.41% |
Dividends
T vs. STX - Dividend Comparison
T's dividend yield for the trailing twelve months is around 6.58%, more than STX's 0.37% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
STX Seagate Technology plc | 0.37% | 1.05% | 3.27% | 3.28% | 5.32% | 2.40% | 4.21% | 4.27% | 6.53% | 6.02% | 6.60% | 6.14% |
T AT&T Inc. | 6.58% | 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. STX - Financials Comparison
This section allows you to compare key financial metrics between AT&T Inc. and Seagate Technology plc. 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 STX have a correlation of -0.21, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
STX has higher volatility (27.07%) compared to T (9.59%). In terms of maximum drawdown, T dropped -64.15% vs STX's -88.74%.
STX currently has the higher Sharpe Ratio (6.39 vs -0.57), 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 T and STX
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