ALAB vs. RBRK

Last updated Jun 13, 2026

ALAB (Astera Labs, Inc.) and RBRK (Rubrik, Inc.) are both stocks. Both are in the Technology sector — ALAB in Semiconductors, RBRK in Software - Infrastructure. Over the past year, ALAB returned 309.17% vs -24.49% for RBRK. At a 0.37 correlation, their price movements are largely independent.

Performance

ALAB vs. RBRK - Performance Comparison

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

Returns By Period

In the year-to-date period, ALAB achieves a 120.70% return, which is significantly higher than RBRK's -10.84% return.

ALAB

• 1D: -0.09%
• 1M: 57.79%
• YTD: 120.70%
• 6M: 146.66%
• 1Y: 309.17%
• 3Y*: —
• 5Y*: —
• 10Y*: —

RBRK

• 1D: -4.56%
• 1M: 6.93%
• YTD: -10.84%
• 6M: -16.36%
• 1Y: -24.49%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

ALAB vs. RBRK - Yearly Performance Comparison

	2026 (YTD)	2025	2024
ALAB Astera Labs, Inc.	120.70%	25.60%	86.58%
RBRK Rubrik, Inc.	-10.84%	17.01%	69.33%

Correlation

The correlation between ALAB and RBRK is 0.30, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.30
Correlation (All Time) Calculated using the full available price history since Apr 25, 2024	0.37

Fundamentals

Market Cap ALAB : $66.51B RBRK : $13.89B
EPS ALAB : $1.48 RBRK : -$1.45
PS Ratio ALAB : 66.09 RBRK : 9.49
Total Revenue (TTM) ALAB : $1.00B RBRK : $1.42B
Gross Profit (TTM) ALAB : $760.99M RBRK : $1.15B
EBITDA (TTM) ALAB : $253.12M RBRK : -$275.30M

Return for Risk

ALAB vs. RBRK — Risk / Return Rank

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

ALAB

ALAB Risk / Return Rank: 91
ALAB Sharpe Ratio Rank: 96
ALAB Sortino Ratio Rank: 90
ALAB Omega Ratio Rank: 89
ALAB Calmar Ratio Rank: 92
ALAB Martin Ratio Rank: 88

RBRK

RBRK Risk / Return Rank: 28
RBRK Sharpe Ratio Rank: 27
RBRK Sortino Ratio Rank: 28
RBRK Omega Ratio Rank: 28
RBRK Calmar Ratio Rank: 29
RBRK Martin Ratio Rank: 29

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.

ALAB vs. RBRK - Risk-Adjusted Trends Comparison

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

	ALAB	RBRK	Difference
Sharpe ratio: Return per unit of total volatility	3.03	-0.37	+3.40
Sortino ratio: Return per unit of downside risk	3.06	-0.16	+3.22
Omega ratio: Gain probability vs. loss probability	1.39	0.98	+0.41
Calmar ratio: Return relative to maximum drawdown	4.84	-0.42	+5.26
Martin ratio: Return relative to average drawdown	9.53	-0.76	+10.29

ALAB vs. RBRK - Sharpe Ratio Comparison

The current ALAB Sharpe Ratio is 3.03, which is higher than the RBRK Sharpe Ratio of -0.37. The chart below compares the historical Sharpe Ratios of ALAB and RBRK, 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

ALAB vs. RBRK - Drawdown Comparison

The maximum ALAB drawdown since its inception was -63.69%, which is greater than RBRK's maximum drawdown of -56.08%. Use the drawdown chart below to compare losses from any high point for ALAB and RBRK.

Drawdown Indicators

	ALAB	RBRK	Difference
Max Drawdown Largest peak-to-trough decline	-63.69%	-56.08%	-7.61%
Max Drawdown (1Y) Largest decline over 1 year	-60.19%	-55.52%	-4.67%
Current Drawdown Current decline from peak	-0.09%	-31.63%	+31.54%
Average Drawdown Average peak-to-trough decline	-29.48%	-18.89%	-10.59%
Ulcer Index Depth and duration of drawdowns from previous peaks	30.50%	30.39%	+0.11%

Volatility

ALAB vs. RBRK - Volatility Comparison

Astera Labs, Inc. (ALAB) has a higher volatility of 32.05% compared to Rubrik, Inc. (RBRK) at 20.37%. This indicates that ALAB's price experiences larger fluctuations and is considered to be riskier than RBRK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ALAB	RBRK	Difference
Volatility (1M) Calculated over the trailing 1-month period	32.05%	20.37%	+11.68%
Volatility (6M) Calculated over the trailing 6-month period	70.52%	44.67%	+25.85%
Volatility (1Y) Calculated over the trailing 1-year period	96.04%	62.64%	+33.40%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	93.49%	64.17%	+29.32%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	93.49%	64.17%	+29.32%

Dividends

ALAB vs. RBRK - Dividend Comparison

Neither ALAB nor RBRK has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

ALAB vs. RBRK - Profitability Comparison

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

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%.

RBRK - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Rubrik, Inc. reported a gross profit of 311.78M and revenue of 387.07M. Therefore, the gross margin over that period was 80.6%.

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%.

RBRK - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Rubrik, Inc. reported an operating income of -52.63M and revenue of 387.07M, resulting in an operating margin of -13.6%.

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%.

RBRK - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Rubrik, Inc. reported a net income of -41.85M and revenue of 387.07M, resulting in a net margin of -10.8%.

Frequently Asked Questions

Can I hold both ALAB and RBRK in my portfolio?

ALAB and RBRK have a correlation of 0.30, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ALAB or RBRK?

ALAB has higher volatility (32.05%) compared to RBRK (20.37%). In terms of maximum drawdown, ALAB dropped -63.69% vs RBRK's -56.08%.

Which has better risk-adjusted returns?

ALAB currently has the higher Sharpe Ratio (3.03 vs -0.37), 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.