QMCO vs. STX

Last updated Apr 2, 2026

Compare and contrast key facts about Quantum Corporation (QMCO) and Seagate Technology plc (STX).

Performance

QMCO vs. STX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Quantum Corporation (QMCO) and Seagate Technology plc (STX). The values are adjusted to include any dividend payments, if applicable.

QMCO vs. STX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
QMCO Quantum Corporation	-22.02%	-88.04%	672.49%	-67.98%	-80.25%	-9.80%	-17.52%	271.00%	-64.48%	-15.42%
STX Seagate Technology plc	53.91%	225.26%	4.06%	69.12%	-51.42%	87.50%	10.14%	62.14%	-2.90%	16.67%

Fundamentals

Market Cap QMCO : $68.86M STX : $96.05B
EPS QMCO : -$8.86 STX : $8.81
PS Ratio QMCO : 0.22 STX : 9.41
Total Revenue (TTM) QMCO : $261.28M STX : $10.06B
Gross Profit (TTM) QMCO : $97.87M STX : $3.89B
EBITDA (TTM) QMCO : -$51.03M STX : $2.29B

Returns By Period

In the year-to-date period, QMCO achieves a -22.02% return, which is significantly lower than STX's 53.91% return. Over the past 10 years, QMCO has underperformed STX with an annualized return of -25.56%, while STX has yielded a comparatively higher 34.69% annualized return.

QMCO

• 1D: 5.89%
• 1M: -5.09%
• YTD: -22.02%
• 6M: -53.81%
• 1Y: -64.25%
• 3Y*: -39.75%
• 5Y*: -50.72%
• 10Y*: -25.56%

STX

• 1D: 8.00%
• 1M: 11.68%
• YTD: 53.91%
• 6M: 65.46%
• 1Y: 406.95%
• 3Y*: 90.66%
• 5Y*: 44.50%
• 10Y*: 34.69%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

QMCO vs. STX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

QMCO

QMCO Risk / Return Rank: 11
QMCO Sharpe Ratio Rank: 13
QMCO Sortino Ratio Rank: 14
QMCO Omega Ratio Rank: 16
QMCO Calmar Ratio Rank: 5
QMCO Martin Ratio Rank: 8

STX

STX Risk / Return Rank: 99
STX Sharpe Ratio Rank: 100
STX Sortino Ratio Rank: 98
STX Omega Ratio Rank: 98
STX Calmar Ratio Rank: 99
STX Martin Ratio Rank: 100

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

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.

	QMCO	STX	Difference
Sharpe ratio Return per unit of total volatility	-0.63	6.29	-6.93
Sortino ratio Return per unit of downside risk	-0.81	4.86	-5.68
Omega ratio Gain probability vs. loss probability	0.91	1.66	-0.74
Calmar ratio Return relative to maximum drawdown	-0.94	18.23	-19.16
Martin ratio Return relative to average drawdown	-1.55	50.66	-52.22
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

QMCO vs. STX - Sharpe Ratio Comparison

The current QMCO Sharpe Ratio is -0.63, which is lower than the STX Sharpe Ratio of 6.29. The chart below compares the historical Sharpe Ratios of QMCO and STX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	QMCO	STX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.63	6.29	-6.93
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.32	1.02	-1.34
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.21	0.82	-1.02
Sharpe Ratio (All Time) Calculated using the full available price history	-0.21	0.45	-0.66

Correlation

The correlation between QMCO and STX is 0.30, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

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 0.69%.

	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	0.69%	1.05%	3.27%	3.28%	5.32%	2.40%	4.21%	4.27%	6.53%	6.02%	6.60%	6.14%

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.

Drawdown Indicators

	QMCO	STX	Difference
Max Drawdown Largest peak-to-trough decline	-99.93%	-88.74%	-11.19%
Max Drawdown (1Y) Largest decline over 1 year	-69.17%	-22.19%	-46.98%
Max Drawdown (5Y) Largest decline over 5 years	-98.65%	-56.99%	-41.66%
Max Drawdown (10Y) Largest decline over 10 years	-98.67%	-56.99%	-41.68%
Current Drawdown Current decline from peak	-99.85%	-5.09%	-94.76%
Average Drawdown Average peak-to-trough decline	-88.01%	-26.65%	-61.36%
Ulcer Index Depth and duration of drawdowns from previous peaks	41.84%	7.98%	+33.86%

Volatility

QMCO vs. STX - Volatility Comparison

Quantum Corporation (QMCO) has a higher volatility of 27.28% compared to Seagate Technology plc (STX) at 22.28%. This indicates that QMCO's price experiences larger fluctuations and is considered to be riskier than STX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	QMCO	STX	Difference
Volatility (1M) Calculated over the trailing 1-month period	27.28%	22.28%	+5.00%
Volatility (6M) Calculated over the trailing 6-month period	64.31%	53.83%	+10.48%
Volatility (1Y) Calculated over the trailing 1-year period	101.71%	65.18%	+36.53%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	157.72%	44.03%	+113.69%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	124.19%	42.60%	+81.59%

Financials

QMCO vs. STX - Profitability Comparison

The chart below illustrates the profitability comparison between Quantum Corporation and Seagate Technology plc over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

QMCO - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Quantum Corporation reported a gross profit of 28.93M and revenue of 74.59M. Therefore, the gross margin over that period was 38.8%.

STX - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Seagate Technology plc reported a gross profit of 1.18B and revenue of 2.83B. Therefore, the gross margin over that period was 41.6%.

QMCO - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Quantum Corporation reported an operating income of -1.19M and revenue of 74.59M, resulting in an operating margin of -1.6%.

STX - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Seagate Technology plc reported an operating income of 830.00M and revenue of 2.83B, resulting in an operating margin of 29.4%.

QMCO - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Quantum Corporation reported a net income of -27.84M and revenue of 74.59M, resulting in a net margin of -37.3%.

STX - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Seagate Technology plc reported a net income of 593.00M and revenue of 2.83B, resulting in a net margin of 21.0%.