TDC vs. WDC
TDC (Teradata Corporation) and WDC (Western Digital Corporation) are both stocks. Both are in the Technology sector — TDC in Information Technology Services, WDC in Computer Hardware. Over the past 10 years, TDC returned 2.14%/yr vs 34.20%/yr for WDC. At a 0.41 correlation, their price movements are largely independent.
Performance
TDC vs. WDC - Performance Comparison
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Returns By Period
In the year-to-date period, TDC achieves a 14.88% return, which is significantly lower than WDC's 245.04% return. Over the past 10 years, TDC has underperformed WDC with an annualized return of 2.14%, while WDC has yielded a comparatively higher 34.20% annualized return.
TDC
- 1D
- -4.22%
- 1M
- 19.27%
- YTD
- 14.88%
- 6M
- 15.41%
- 1Y
- 57.03%
- 3Y*
- -10.43%
- 5Y*
- -6.42%
- 10Y*
- 2.14%
WDC
- 1D
- 5.51%
- 1M
- 34.30%
- YTD
- 245.04%
- 6M
- 282.33%
- 1Y
- 1,009.68%
- 3Y*
- 169.70%
- 5Y*
- 59.21%
- 10Y*
- 34.20%
TDC vs. WDC - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TDC Teradata Corporation | 14.88% | -2.28% | -28.41% | 29.26% | -20.74% | 89.01% | -16.06% | -30.21% | -0.26% | 41.55% |
WDC Western Digital Corporation | 245.04% | 283.68% | 13.86% | 65.99% | -51.62% | 17.73% | -10.89% | 77.14% | -51.90% | 19.83% |
Correlation
The correlation between TDC and WDC is 0.14, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.14 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.26 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.36 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.39 |
Correlation (All Time) Calculated using the full available price history since Oct 2, 2007 | 0.41 |
Over the past year, the correlation between TDC and WDC has dropped to 0.14 - well below their long-term average of 0.41, suggesting their price drivers have been diverging.
Fundamentals
TDC:
$4.38
WDC:
$23.29
TDC:
7.98
WDC:
25.51
TDC:
0.26
WDC:
0.59
TDC:
1.99
WDC:
14.05
TDC:
$1.69B
WDC:
$11.78B
TDC:
$1.02B
WDC:
$5.35B
TDC:
$167.00M
WDC:
$10.88B
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Return for Risk
TDC vs. WDC — Risk / Return Rank
TDC
WDC
TDC vs. WDC - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Teradata Corporation (TDC) and Western Digital Corporation (WDC). 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.
| TDC | WDC | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -15.17 | ||
| Sortino ratioReturn per unit of downside risk | -5.46 | ||
| Omega ratioGain probability vs. loss probability | 1.26 | 2.05 | -0.79 |
| Calmar ratioReturn relative to maximum drawdown | 1.63 | 49.55 | -47.92 |
| Martin ratioReturn relative to average drawdown | 3.87 | 177.25 | -173.38 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| TDC | WDC | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.95 | 16.12 | -15.17 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.14 | 1.23 | -1.37 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.05 | 0.71 | -0.66 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.04 | 0.21 | -0.17 |
Drawdowns
TDC vs. WDC - Drawdown Comparison
The maximum TDC drawdown since its inception was -75.50%, smaller than the maximum WDC drawdown of -96.20%. Use the drawdown chart below to compare losses from any high point for TDC and WDC.
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Drawdown Indicators
| TDC | WDC | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -75.50% | -96.20% | +20.70% |
Max Drawdown (1Y)Largest decline over 1 year | -35.16% | -20.59% | -14.57% |
Max Drawdown (3Y)Largest decline over 3 years | -66.56% | -49.65% | -16.91% |
Max Drawdown (5Y)Largest decline over 5 years | -67.40% | -60.85% | -6.55% |
Max Drawdown (10Y)Largest decline over 10 years | -67.40% | -70.49% | +3.09% |
Current DrawdownCurrent decline from peak | -52.79% | 0.00% | -52.79% |
Average DrawdownAverage peak-to-trough decline | -40.86% | -52.10% | +11.24% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 14.78% | 5.75% | +9.03% |
Volatility
TDC vs. WDC - Volatility Comparison
The current volatility for Teradata Corporation (TDC) is 15.50%, while Western Digital Corporation (WDC) has a volatility of 17.18%. This indicates that TDC experiences smaller price fluctuations and is considered to be less risky than WDC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TDC | WDC | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 15.50% | 17.18% | -1.68% |
Volatility (6M)Calculated over the trailing 6-month period | 42.35% | 51.44% | -9.09% |
Volatility (1Y)Calculated over the trailing 1-year period | 60.22% | 63.33% | -3.11% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 45.73% | 48.32% | -2.59% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 45.37% | 48.38% | -3.01% |
Dividends
TDC vs. WDC - Dividend Comparison
TDC has not paid dividends to shareholders, while WDC's dividend yield for the trailing twelve months is around 0.08%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
TDC Teradata Corporation | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
WDC Western Digital Corporation | 0.08% | 0.19% | 0.00% | 0.00% | 0.00% | 0.00% | 1.81% | 2.36% | 5.41% | 2.51% | 2.94% | 3.33% |
Financials
TDC vs. WDC - Financials Comparison
This section allows you to compare key financial metrics between Teradata Corporation and Western Digital Corporation. 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
TDC vs. WDC - Profitability Comparison
TDC - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Teradata Corporation reported a gross profit of 276.00M and revenue of 444.00M. Therefore, the gross margin over that period was 62.2%.
WDC - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Western Digital Corporation reported a gross profit of 1.68B and revenue of 3.34B. Therefore, the gross margin over that period was 50.2%.
TDC - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Teradata Corporation reported an operating income of -36.00M and revenue of 444.00M, resulting in an operating margin of -8.1%.
WDC - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Western Digital Corporation reported an operating income of 1.14B and revenue of 3.34B, resulting in an operating margin of 34.0%.
TDC - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Teradata Corporation reported a net income of 335.00M and revenue of 444.00M, resulting in a net margin of 75.5%.
WDC - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Western Digital Corporation reported a net income of 3.21B and revenue of 3.34B, resulting in a net margin of 96.0%.
Frequently Asked Questions
TDC and WDC have a correlation of 0.14, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
WDC has higher volatility (17.18%) compared to TDC (15.50%). In terms of maximum drawdown, TDC dropped -75.50% vs WDC's -96.20%.
WDC currently has the higher Sharpe Ratio (16.12 vs 0.95), 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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