QMCO vs. STX
QMCO (Quantum Corporation) and STX (Seagate Technology plc) are both stocks. Both operate in the Computer Hardware industry within the Technology sector. Over the past 10 years, QMCO returned -20.32%/yr vs 45.44%/yr for STX. Their 0.30 correlation means their historical movements had little consistent relationship.
Performance
QMCO vs. STX - Performance Comparison
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Returns By Period
In the year-to-date period, QMCO achieves a 64.96% return, which is significantly lower than STX's 211.64% return. Over the past 10 years, QMCO has underperformed STX with an annualized return of -20.32%, while STX has yielded a comparatively higher 45.44% annualized return.
QMCO
- 1D
- -5.34%
- 1M
- 4.72%
- 6M
- 71.61%
- YTD
- 64.96%
- 1Y
- 41.30%
- 3Y*
- -23.10%
- 5Y*
- -38.81%
- 10Y*
- -20.32%
- ALL TIME*
- -18.32%
STX
- 1D
- 0.52%
- 1M
- 4.39%
- 6M
- 110.51%
- YTD
- 211.64%
- 1Y
- 457.59%
- 3Y*
- 141.31%
- 5Y*
- 62.43%
- 10Y*
- 45.44%
- ALL TIME*
- 24.03%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $10.63M | $9.59M | $13.73M | |
| $5.18B | $4.59B | $4.10B |
QMCO vs. STX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
QMCO Quantum Corporation | 64.96% | -88.04% | 672.49% | -67.98% | -80.25% | -9.80% | -17.52% | 271.00% | -64.48% | -15.42% |
STX Seagate Technology plc | 211.64% | 225.26% | 4.06% | 69.12% | -51.42% | 87.50% | 10.14% | 62.14% | -2.90% | 16.67% |
Correlation
The correlation between QMCO and STX is 0.38, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.38 |
Correlation (3Y) Balances recent behavior with more history. | 0.26 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.29 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.26 |
Correlation (All Time) Calculated using the full available price history since Dec 11, 2002 | 0.30 |
The correlation between QMCO and STX shifts across timeframes, from 0.26 (3 years) to 0.38 (1 year), reflecting how their relationship changes across market environments.
Fundamentals
QMCO:
$66.49M
STX:
$191.97B
QMCO:
-$7.68
STX:
$13.93
QMCO:
0.50
STX:
16.04
QMCO:
$279.58M
STX:
$12.20B
QMCO:
$103.04M
STX:
$5.56B
QMCO:
-$67.70M
STX:
$4.31B
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Return for Risk
QMCO vs. STX — Risk / Return Rank
QMCO
STX
QMCO vs. STX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Quantum Corporation (QMCO) 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.
| QMCO | STX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -5.97 | ||
| Sortino ratioReturn per unit of downside risk | -3.30 | ||
| Omega ratioGain probability vs. loss probability | 1.15 | 1.58 | -0.43 |
| Calmar ratioReturn relative to maximum drawdown | 0.49 | 14.26 | -13.77 |
| Martin ratioReturn relative to average drawdown | 0.85 | 44.98 | -44.13 |
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Drawdowns
QMCO vs. STX - Drawdown Comparison
The maximum QMCO drawdown since its inception was -99.93%, which is greater than STX's maximum drawdown of -88.74%. Use the drawdown chart below to compare losses from any high point for QMCO and STX.
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Drawdown Indicators
| QMCO | STX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.93% | -88.74% | -11.19% |
Max Drawdown (1Y)Largest decline over 1 year | -67.72% | -31.81% | -35.91% |
Max Drawdown (3Y)Largest decline over 3 years | -93.90% | -40.00% | -53.90% |
Max Drawdown (5Y)Largest decline over 5 years | -98.26% | -56.99% | -41.27% |
Max Drawdown (10Y)Largest decline over 10 years | -98.67% | -56.99% | -41.68% |
Current DrawdownCurrent decline from peak | -99.69% | -21.69% | -78.00% |
Average DrawdownAverage peak-to-trough decline | -88.14% | -26.38% | -61.76% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 38.82% | 10.07% | +28.75% |
Volatility
QMCO vs. STX - Volatility Comparison
The current volatility for Quantum Corporation (QMCO) is 23.03%, while Seagate Technology plc (STX) has a volatility of 29.03%. This indicates that QMCO 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.
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Volatility by Period
| QMCO | STX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 23.03% | 29.03% | -6.00% |
Volatility (6M)Calculated over the trailing 6-month period | 74.53% | 54.41% | +20.12% |
Volatility (1Y)Calculated over the trailing 1-year period | 104.69% | 72.34% | +32.35% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 159.82% | 47.22% | +112.60% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 124.86% | 42.76% | +82.10% |
Dividends
QMCO vs. STX - Dividend Comparison
QMCO has not paid dividends to shareholders, while STX's dividend yield for the trailing twelve months is around 0.34%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
QMCO Quantum 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% |
STX Seagate Technology plc | 0.34% | 1.05% | 3.27% | 3.28% | 5.32% | 2.40% | 4.21% | 4.27% | 6.53% | 6.02% | 6.60% | 6.14% |
Financials
QMCO vs. STX - Financials Comparison
This section allows you to compare key financial metrics between Quantum Corporation 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
QMCO vs. STX - Profitability Comparison
QMCO - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Quantum Corporation reported a gross profit of 27.85M and revenue of 77.99M. Therefore, the gross margin over that period was 35.7%.
STX - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Seagate Technology plc reported a gross profit of 1.90B and revenue of 3.63B. Therefore, the gross margin over that period was 52.3%.
QMCO - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Quantum Corporation reported an operating income of -4.09M and revenue of 77.99M, resulting in an operating margin of -5.2%.
STX - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Seagate Technology plc reported an operating income of 1.54B and revenue of 3.63B, resulting in an operating margin of 42.5%.
QMCO - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Quantum Corporation reported a net income of -9.54M and revenue of 77.99M, resulting in a net margin of -12.2%.
STX - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Seagate Technology plc reported a net income of 1.29B and revenue of 3.63B, resulting in a net margin of 35.7%.
Frequently Asked Questions
QMCO and STX have a correlation of 0.38, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
STX has higher volatility (29.03%) compared to QMCO (23.03%). In terms of maximum drawdown, QMCO dropped -99.93% vs STX's -88.74%.
STX currently has the higher Sharpe Ratio (6.29 vs 0.32), 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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