SPYM vs. MU

Last updated Jul 21, 2026

SPYM (State Street SPDR Portfolio S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index, while MU (Micron Technology, Inc.) is a stock. Over the past 10 years, SPYM returned 15.03%/yr vs 52.40%/yr for MU. A 0.52 correlation means they provide meaningful diversification when combined.

Performance

SPYM vs. MU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street SPDR Portfolio S&P 500 ETF (SPYM) and Micron Technology, Inc. (MU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SPYM achieves a 9.47% return, which is significantly lower than MU's 203.41% return. Over the past 10 years, SPYM has underperformed MU with an annualized return of 15.03%, while MU has yielded a comparatively higher 52.40% annualized return.

SPYM

• 1D: -0.14%
• 1M: -0.60%
• 6M: 7.91%
• YTD: 9.47%
• 1Y: 19.65%
• 3Y*: 19.52%
• 5Y*: 12.89%
• 10Y*: 15.03%
• ALL TIME*: 11.15%

MU

• 1D: 1.94%
• 1M: -23.67%
• 6M: 138.72%
• YTD: 203.41%
• 1Y: 657.80%
• 3Y*: 137.11%
• 5Y*: 62.98%
• 10Y*: 52.40%
• ALL TIME*: 17.23%

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

SPYM vs. MU - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SPYM State Street SPDR Portfolio S&P 500 ETF	9.47%	17.79%	25.00%	26.24%	-18.09%	28.78%	18.49%	31.99%	-4.78%	21.30%
MU Micron Technology, Inc.	203.41%	240.24%	-0.96%	71.93%	-45.93%	24.21%	39.79%	69.49%	-22.84%	87.59%

Correlation

The correlation between SPYM and MU 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	0.54
Correlation (5Y) Calculated over the trailing 5-year period	0.58
Correlation (10Y) Calculated over the trailing 10-year period	0.57
Correlation (All Time) Calculated using the full available price history since Nov 15, 2005	0.52

The correlation between SPYM and MU has been stable across timeframes, ranging from 0.52 to 0.58 - a consistent structural relationship.

Return for Risk

SPYM vs. MU — Risk / Return Rank

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

SPYM

SPYM Risk / Return Rank: 64
SPYM Sharpe Ratio Rank: 64
SPYM Sortino Ratio Rank: 62
SPYM Omega Ratio Rank: 63
SPYM Calmar Ratio Rank: 59
SPYM Martin Ratio Rank: 72

MU

MU Risk / Return Rank: 99
MU Sharpe Ratio Rank: 100
MU Sortino Ratio Rank: 99
MU Omega Ratio Rank: 98
MU Calmar Ratio Rank: 100
MU 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.

SPYM vs. MU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street SPDR Portfolio S&P 500 ETF (SPYM) and Micron Technology, Inc. (MU). 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.

	SPYM	MU	Difference
Sharpe ratio: Return per unit of total volatility	1.57	8.69	-7.12
Sortino ratio: Return per unit of downside risk	2.19	5.21	-3.02
Omega ratio: Gain probability vs. loss probability	1.28	1.66	-0.38
Calmar ratio: Return relative to maximum drawdown	2.22	21.93	-19.71
Martin ratio: Return relative to average drawdown	9.63	74.09	-64.47

SPYM vs. MU - Sharpe Ratio Comparison

The current SPYM Sharpe Ratio is 1.57, which is lower than the MU Sharpe Ratio of 8.69. The chart below compares the historical Sharpe Ratios of SPYM and MU, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

SPYM vs. MU - Drawdown Comparison

The maximum SPYM drawdown since its inception was -54.46%, smaller than the maximum MU drawdown of -98.25%. Use the drawdown chart below to compare losses from any high point for SPYM and MU.

Drawdown Indicators

	SPYM	MU	Difference
Max Drawdown Largest peak-to-trough decline	-54.46%	-98.25%	+43.79%
Max Drawdown (1Y) Largest decline over 1 year	-8.90%	-30.28%	+21.38%
Max Drawdown (3Y) Largest decline over 3 years	-18.72%	-57.63%	+38.91%
Max Drawdown (5Y) Largest decline over 5 years	-24.48%	-57.63%	+33.15%
Max Drawdown (10Y) Largest decline over 10 years	-33.87%	-57.63%	+23.76%
Current Drawdown Current decline from peak	-2.01%	-28.67%	+26.66%
Average Drawdown Average peak-to-trough decline	-7.12%	-58.05%	+50.93%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.05%	8.95%	-6.90%

Volatility

SPYM vs. MU - Volatility Comparison

The current volatility for State Street SPDR Portfolio S&P 500 ETF (SPYM) is 3.43%, while Micron Technology, Inc. (MU) has a volatility of 30.97%. This indicates that SPYM experiences smaller price fluctuations and is considered to be less risky than MU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SPYM	MU	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.43%	30.97%	-27.54%
Volatility (6M) Calculated over the trailing 6-month period	10.04%	63.14%	-53.10%
Volatility (1Y) Calculated over the trailing 1-year period	12.60%	76.55%	-63.95%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.90%	55.01%	-38.11%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.00%	50.78%	-32.78%

Dividends

SPYM vs. MU - Dividend Comparison

SPYM's dividend yield for the trailing twelve months is around 1.04%, more than MU's 0.06% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MU Micron Technology, Inc.	0.06%	0.16%	0.55%	0.54%	0.89%	0.21%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SPYM State Street SPDR Portfolio S&P 500 ETF	1.04%	1.13%	1.28%	1.44%	1.69%	1.25%	1.54%	1.79%	2.23%	1.75%	1.97%	1.98%

Frequently Asked Questions

Can I hold both SPYM and MU in my portfolio?

SPYM and MU 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, SPYM or MU?

MU has higher volatility (30.97%) compared to SPYM (3.43%). In terms of maximum drawdown, SPYM dropped -54.46% vs MU's -98.25%.

Which has better risk-adjusted returns?

MU currently has the higher Sharpe Ratio (8.69 vs 1.57), 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.