ALMU vs. AEHR

Last updated Jun 3, 2026

ALMU (Aeluma, Inc) and AEHR (Aehr Test Systems) are both stocks. Both are in the Technology sector — ALMU in Semiconductors, AEHR in Semiconductor Equipment & Materials. Over the past 3 years, ALMU returned 100.40%/yr vs 39.80%/yr for AEHR. At a 0.18 correlation, their price movements are largely independent.

Performance

ALMU vs. AEHR - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Aeluma, Inc (ALMU) and Aehr Test Systems (AEHR). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ALMU achieves a 54.69% return, which is significantly lower than AEHR's 459.68% return.

ALMU

• 1D: 1.34%
• 1M: 3.83%
• YTD: 54.69%
• 6M: 91.08%
• 1Y: 61.66%
• 3Y*: 100.40%
• 5Y*: —
• 10Y*: —

AEHR

• 1D: 20.70%
• 1M: 21.41%
• YTD: 459.68%
• 6M: 403.12%
• 1Y: 1,069.77%
• 3Y*: 39.80%
• 5Y*: 111.82%
• 10Y*: 59.81%

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

ALMU vs. AEHR - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
ALMU Aeluma, Inc	54.69%	124.44%	163.79%	38.10%	5.00%
AEHR Aehr Test Systems	459.68%	21.41%	-37.32%	31.99%	-10.94%

Correlation

The correlation between ALMU and AEHR is 0.36, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.36
Correlation (3Y) Calculated over the trailing 3-year period	0.21
Correlation (All Time) Calculated using the full available price history since Nov 17, 2022	0.18

The correlation between ALMU and AEHR shifts across timeframes, from 0.18 (all time) to 0.36 (1 year), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap ALMU : $460.93M AEHR : $3.47B
EPS ALMU : -$0.36 AEHR : -$0.38
PS Ratio ALMU : 85.87 AEHR : 75.46
PB Ratio ALMU : 11.50 AEHR : 24.99
Total Revenue (TTM) ALMU : $5.20M AEHR : $45.26M
Gross Profit (TTM) ALMU : $2.17M AEHR : $13.90M
EBITDA (TTM) ALMU : -$6.01M AEHR : -$13.56M

Return for Risk

ALMU vs. AEHR — Risk / Return Rank

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

ALMU

ALMU Risk / Return Rank: 64
ALMU Sharpe Ratio Rank: 57
ALMU Sortino Ratio Rank: 67
ALMU Omega Ratio Rank: 64
ALMU Calmar Ratio Rank: 69
ALMU Martin Ratio Rank: 65

AEHR

AEHR Risk / Return Rank: 98
AEHR Sharpe Ratio Rank: 100
AEHR Sortino Ratio Rank: 97
AEHR Omega Ratio Rank: 95
AEHR Calmar Ratio Rank: 100
AEHR Martin Ratio Rank: 99

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.

ALMU vs. AEHR - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Aeluma, Inc (ALMU) and Aehr Test Systems (AEHR). 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.

	ALMU	AEHR	Difference
Sharpe ratio Return per unit of total volatility	0.48	9.15	-8.68
Sortino ratio Return per unit of downside risk	1.64	4.93	-3.29
Omega ratio Gain probability vs. loss probability	1.19	1.58	-0.38
Calmar ratio Return relative to maximum drawdown	1.56	25.63	-24.07
Martin ratio Return relative to average drawdown	2.94	58.16	-55.22
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ALMU vs. AEHR - Sharpe Ratio Comparison

The current ALMU Sharpe Ratio is 0.48, which is lower than the AEHR Sharpe Ratio of 9.15. The chart below compares the historical Sharpe Ratios of ALMU and AEHR, 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

	ALMU	AEHR	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.48	9.15	-8.68
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	1.03	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.63	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.88	0.08	+0.79

Drawdowns

ALMU vs. AEHR - Drawdown Comparison

The maximum ALMU drawdown since its inception was -55.37%, smaller than the maximum AEHR drawdown of -97.98%. Use the drawdown chart below to compare losses from any high point for ALMU and AEHR.

Drawdown Indicators

	ALMU	AEHR	Difference
Max Drawdown Largest peak-to-trough decline	-55.37%	-97.98%	+42.61%
Max Drawdown (1Y) Largest decline over 1 year	-55.37%	-42.31%	-13.06%
Max Drawdown (3Y) Largest decline over 3 years	-55.37%	-87.37%	+32.00%
Max Drawdown (5Y) Largest decline over 5 years	—	-87.37%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-87.37%	—
Current Drawdown Current decline from peak	-15.66%	0.00%	-15.66%
Average Drawdown Average peak-to-trough decline	-23.53%	-79.68%	+56.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	29.35%	18.65%	+10.70%

Volatility

ALMU vs. AEHR - Volatility Comparison

Aeluma, Inc (ALMU) has a higher volatility of 51.32% compared to Aehr Test Systems (AEHR) at 40.03%. This indicates that ALMU's price experiences larger fluctuations and is considered to be riskier than AEHR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ALMU	AEHR	Difference
Volatility (1M) Calculated over the trailing 1-month period	51.32%	40.03%	+11.29%
Volatility (6M) Calculated over the trailing 6-month period	93.23%	86.33%	+6.90%
Volatility (1Y) Calculated over the trailing 1-year period	130.52%	118.12%	+12.40%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	123.73%	109.54%	+14.19%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	123.73%	94.97%	+28.76%

Dividends

ALMU vs. AEHR - Dividend Comparison

Neither ALMU nor AEHR has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both ALMU and AEHR in my portfolio?

ALMU and AEHR have a correlation of 0.36, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ALMU or AEHR?

ALMU has higher volatility (51.32%) compared to AEHR (40.03%). In terms of maximum drawdown, ALMU dropped -55.37% vs AEHR's -97.98%.

Which has better risk-adjusted returns?

AEHR currently has the higher Sharpe Ratio (9.15 vs 0.48), 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.