STX vs. AMAT

Last updated Jun 9, 2026

STX (Seagate Technology plc) and AMAT (Applied Materials, Inc.) are both stocks. Both are in the Technology sector — STX in Computer Hardware, AMAT in Semiconductor Equipment & Materials. Over the past 10 years, STX returned 49.93%/yr vs 36.71%/yr for AMAT. At a 0.47 correlation, their price movements are largely independent.

Performance

STX vs. AMAT - Performance Comparison

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

Returns By Period

In the year-to-date period, STX achieves a 218.93% return, which is significantly higher than AMAT's 91.99% return. Over the past 10 years, STX has outperformed AMAT with an annualized return of 49.93%, while AMAT has yielded a comparatively lower 36.71% annualized return.

STX

• 1D: 3.46%
• 1M: 12.03%
• YTD: 218.93%
• 6M: 208.54%
• 1Y: 599.43%
• 3Y*: 149.84%
• 5Y*: 59.24%
• 10Y*: 49.93%

AMAT

• 1D: 8.64%
• 1M: 13.17%
• YTD: 91.99%
• 6M: 83.99%
• 1Y: 197.34%
• 3Y*: 54.75%
• 5Y*: 30.69%
• 10Y*: 36.71%

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

STX vs. AMAT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
STX Seagate Technology plc	218.93%	225.26%	4.06%	69.12%	-51.42%	87.50%	10.14%	62.14%	-2.90%	16.67%
AMAT Applied Materials, Inc.	91.99%	59.60%	1.13%	67.97%	-37.54%	83.64%	43.29%	89.86%	-34.92%	59.86%

Correlation

The correlation between STX and AMAT is 0.54, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.54
Correlation (3Y) Calculated over the trailing 3-year period	0.53
Correlation (5Y) Calculated over the trailing 5-year period	0.59
Correlation (10Y) Calculated over the trailing 10-year period	0.54
Correlation (All Time) Calculated using the full available price history since Dec 12, 2002	0.47

The correlation between STX and AMAT shifts across timeframes, from 0.47 (all time) to 0.59 (5 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap STX : $199.90B AMAT : $393.24B
EPS STX : $10.58 AMAT : $10.61
PE Ratio STX : 82.87 AMAT : 46.38
PEG Ratio STX : 0.99 AMAT : 5.90
PS Ratio STX : 17.90 AMAT : 13.60
PB Ratio STX : 182.56 AMAT : 16.45
Total Revenue (TTM) STX : $11.01B AMAT : $29.02B
Gross Profit (TTM) STX : $4.57B AMAT : $14.21B
EBITDA (TTM) STX : $2.59B AMAT : $9.92B

Return for Risk

STX vs. AMAT — Risk / Return Rank

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

STX

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

AMAT

AMAT Risk / Return Rank: 96
AMAT Sharpe Ratio Rank: 98
AMAT Sortino Ratio Rank: 94
AMAT Omega Ratio Rank: 95
AMAT Calmar Ratio Rank: 97
AMAT Martin Ratio Rank: 97

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.

STX vs. AMAT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Seagate Technology plc (STX) and Applied Materials, Inc. (AMAT). 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.

	STX	AMAT	Difference
Sharpe ratio: Return per unit of total volatility	9.54	4.15	+5.39
Sortino ratio: Return per unit of downside risk	6.19	3.81	+2.37
Omega ratio: Gain probability vs. loss probability	1.80	1.55	+0.25
Calmar ratio: Return relative to maximum drawdown	28.81	9.29	+19.51
Martin ratio: Return relative to average drawdown	84.36	26.48	+57.88
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

STX vs. AMAT - Sharpe Ratio Comparison

The current STX Sharpe Ratio is 9.54, which is higher than the AMAT Sharpe Ratio of 4.15. The chart below compares the historical Sharpe Ratios of STX and AMAT, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	STX	AMAT	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	9.54	4.15	+5.39
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.34	0.70	+0.63
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	1.19	0.86	+0.33
Sharpe Ratio (All Time) Calculated using the full available price history	0.53	0.43	+0.10

Drawdowns

STX vs. AMAT - Drawdown Comparison

The maximum STX drawdown since its inception was -88.74%, roughly equal to the maximum AMAT drawdown of -85.22%. Use the drawdown chart below to compare losses from any high point for STX and AMAT.

Drawdown Indicators

	STX	AMAT	Difference
Max Drawdown Largest peak-to-trough decline	-88.74%	-85.22%	-3.52%
Max Drawdown (1Y) Largest decline over 1 year	-21.00%	-21.37%	+0.37%
Max Drawdown (3Y) Largest decline over 3 years	-40.00%	-49.88%	+9.88%
Max Drawdown (5Y) Largest decline over 5 years	-56.99%	-55.14%	-1.85%
Max Drawdown (10Y) Largest decline over 10 years	-56.99%	-55.14%	-1.85%
Current Drawdown Current decline from peak	-6.80%	-1.90%	-4.90%
Average Drawdown Average peak-to-trough decline	-26.45%	-38.80%	+12.35%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.16%	7.49%	-0.33%

Volatility

STX vs. AMAT - Volatility Comparison

The current volatility for Seagate Technology plc (STX) is 17.98%, while Applied Materials, Inc. (AMAT) has a volatility of 19.01%. This indicates that STX experiences smaller price fluctuations and is considered to be less risky than AMAT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	STX	AMAT	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.98%	19.01%	-1.03%
Volatility (6M) Calculated over the trailing 6-month period	49.95%	37.52%	+12.43%
Volatility (1Y) Calculated over the trailing 1-year period	63.55%	47.94%	+15.61%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	44.63%	43.93%	+0.70%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	42.18%	42.81%	-0.63%

Dividends

STX vs. AMAT - Dividend Comparison

STX's dividend yield for the trailing twelve months is around 0.33%, less than AMAT's 0.39% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AMAT Applied Materials, Inc.	0.39%	0.69%	0.93%	0.75%	1.05%	0.60%	1.01%	1.36%	2.14%	0.78%	1.24%	2.14%
STX Seagate Technology plc	0.33%	1.05%	3.27%	3.28%	5.32%	2.40%	4.21%	4.27%	6.53%	6.02%	6.60%	6.14%

Financials

STX vs. AMAT - Profitability Comparison

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

STX - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Seagate Technology plc reported a gross profit of 1.45B and revenue of 3.11B. Therefore, the gross margin over that period was 46.5%.

AMAT - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Applied Materials, Inc. reported a gross profit of 3.95B and revenue of 7.91B. Therefore, the gross margin over that period was 49.9%.

STX - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Seagate Technology plc reported an operating income of 982.00M and revenue of 3.11B, resulting in an operating margin of 31.6%.

AMAT - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Applied Materials, Inc. reported an operating income of 2.52B and revenue of 7.91B, resulting in an operating margin of 31.9%.

STX - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Seagate Technology plc reported a net income of 748.00M and revenue of 3.11B, resulting in a net margin of 24.0%.

AMAT - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Applied Materials, Inc. reported a net income of 2.81B and revenue of 7.91B, resulting in a net margin of 35.5%.

Frequently Asked Questions

Can I hold both STX and AMAT in my portfolio?

STX and AMAT have a correlation of 0.54, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, STX or AMAT?

AMAT has higher volatility (19.01%) compared to STX (17.98%). In terms of maximum drawdown, STX dropped -88.74% vs AMAT's -85.22%.

Which has better risk-adjusted returns?

STX currently has the higher Sharpe Ratio (9.54 vs 4.15), 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.