LFUS vs. ALAB

Last updated Jun 4, 2026

LFUS (Littelfuse, Inc.) and ALAB (Astera Labs, Inc.) are both stocks. Both are in the Technology sector — LFUS in Electronic Components, ALAB in Semiconductors. Over the past year, LFUS returned 130.46% vs 282.31% for ALAB. At a 0.36 correlation, their price movements are largely independent.

Performance

LFUS vs. ALAB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Littelfuse, Inc. (LFUS) and Astera Labs, Inc. (ALAB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, LFUS achieves a 92.36% return, which is significantly lower than ALAB's 118.53% return.

LFUS

• 1D: -0.67%
• 1M: 14.43%
• YTD: 92.36%
• 6M: 89.23%
• 1Y: 130.46%
• 3Y*: 23.73%
• 5Y*: 14.26%
• 10Y*: 16.50%

ALAB

• 1D: 2.19%
• 1M: 80.64%
• YTD: 118.53%
• 6M: 138.39%
• 1Y: 282.31%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

LFUS vs. ALAB - Yearly Performance Comparison

	2026 (YTD)	2025	2024
LFUS Littelfuse, Inc.	92.36%	8.65%	2.11%
ALAB Astera Labs, Inc.	118.53%	25.60%	113.53%

Correlation

The correlation between LFUS and ALAB is 0.35, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.35
Correlation (All Time) Calculated using the full available price history since Mar 21, 2024	0.36

Fundamentals

Market Cap LFUS : $12.32B ALAB : $65.86B
EPS LFUS : -$1.60 ALAB : $1.48
PS Ratio LFUS : 4.88 ALAB : 65.44
PB Ratio LFUS : 4.90 ALAB : 44.08
Total Revenue (TTM) LFUS : $2.49B ALAB : $1.00B
Gross Profit (TTM) LFUS : $952.94M ALAB : $760.99M
EBITDA (TTM) LFUS : $229.35M ALAB : $253.12M

Return for Risk

LFUS vs. ALAB — Risk / Return Rank

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

LFUS

LFUS Risk / Return Rank: 95
LFUS Sharpe Ratio Rank: 96
LFUS Sortino Ratio Rank: 95
LFUS Omega Ratio Rank: 93
LFUS Calmar Ratio Rank: 94
LFUS Martin Ratio Rank: 96

ALAB

ALAB Risk / Return Rank: 89
ALAB Sharpe Ratio Rank: 94
ALAB Sortino Ratio Rank: 88
ALAB Omega Ratio Rank: 87
ALAB Calmar Ratio Rank: 90
ALAB Martin Ratio Rank: 86

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.

LFUS vs. ALAB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Littelfuse, Inc. (LFUS) and Astera Labs, Inc. (ALAB). 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.

	LFUS	ALAB	Difference
Sharpe ratio Return per unit of total volatility	3.57	3.01	+0.55
Sortino ratio Return per unit of downside risk	4.19	3.06	+1.13
Omega ratio Gain probability vs. loss probability	1.52	1.39	+0.13
Calmar ratio Return relative to maximum drawdown	6.64	4.72	+1.92
Martin ratio Return relative to average drawdown	22.90	9.31	+13.59
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

LFUS vs. ALAB - Sharpe Ratio Comparison

The current LFUS Sharpe Ratio is 3.57, which is comparable to the ALAB Sharpe Ratio of 3.01. The chart below compares the historical Sharpe Ratios of LFUS and ALAB, 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

	LFUS	ALAB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.57	3.01	+0.55
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.42	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.47	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.36	1.34	-0.98

Drawdowns

LFUS vs. ALAB - Drawdown Comparison

The maximum LFUS drawdown since its inception was -82.44%, which is greater than ALAB's maximum drawdown of -63.69%. Use the drawdown chart below to compare losses from any high point for LFUS and ALAB.

Drawdown Indicators

	LFUS	ALAB	Difference
Max Drawdown Largest peak-to-trough decline	-82.44%	-63.69%	-18.75%
Max Drawdown (1Y) Largest decline over 1 year	-19.75%	-60.19%	+40.44%
Max Drawdown (3Y) Largest decline over 3 years	-50.68%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-53.29%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-54.18%	—	—
Current Drawdown Current decline from peak	-0.67%	0.00%	-0.67%
Average Drawdown Average peak-to-trough decline	-22.88%	-29.85%	+6.97%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.72%	30.49%	-24.77%

Volatility

LFUS vs. ALAB - Volatility Comparison

The current volatility for Littelfuse, Inc. (LFUS) is 12.84%, while Astera Labs, Inc. (ALAB) has a volatility of 29.16%. This indicates that LFUS experiences smaller price fluctuations and is considered to be less risky than ALAB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	LFUS	ALAB	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.84%	29.16%	-16.32%
Volatility (6M) Calculated over the trailing 6-month period	29.20%	70.78%	-41.58%
Volatility (1Y) Calculated over the trailing 1-year period	37.04%	94.41%	-57.37%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	34.34%	92.55%	-58.21%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	35.04%	92.55%	-57.51%

Dividends

LFUS vs. ALAB - Dividend Comparison

LFUS's dividend yield for the trailing twelve months is around 0.62%, while ALAB has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ALAB Astera Labs, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
LFUS Littelfuse, Inc.	0.62%	1.15%	1.15%	0.93%	1.03%	0.64%	0.75%	0.95%	0.93%	0.71%	0.82%	1.01%

Financials

LFUS vs. ALAB - Profitability Comparison

The chart below illustrates the profitability comparison between Littelfuse, Inc. and Astera Labs, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

LFUS - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Littelfuse, Inc. reported a gross profit of 254.15M and revenue of 656.97M. Therefore, the gross margin over that period was 38.7%.

ALAB - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Astera Labs, Inc. reported a gross profit of 235.14M and revenue of 308.36M. Therefore, the gross margin over that period was 76.3%.

LFUS - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Littelfuse, Inc. reported an operating income of 101.17M and revenue of 656.97M, resulting in an operating margin of 15.4%.

ALAB - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Astera Labs, Inc. reported an operating income of 61.83M and revenue of 308.36M, resulting in an operating margin of 20.1%.

LFUS - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Littelfuse, Inc. reported a net income of 75.15M and revenue of 656.97M, resulting in a net margin of 11.4%.

ALAB - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Astera Labs, Inc. reported a net income of 80.31M and revenue of 308.36M, resulting in a net margin of 26.0%.

Frequently Asked Questions

Can I hold both LFUS and ALAB in my portfolio?

LFUS and ALAB have a correlation of 0.35, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, LFUS or ALAB?

ALAB has higher volatility (29.16%) compared to LFUS (12.84%). In terms of maximum drawdown, LFUS dropped -82.44% vs ALAB's -63.69%.

Which has better risk-adjusted returns?

LFUS currently has the higher Sharpe Ratio (3.57 vs 3.01), 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.