ARM vs. HOOD

Last updated Jun 13, 2026

ARM (Arm Holdings plc American Depositary Shares) and HOOD (Robinhood Markets, Inc.) are both stocks. ARM operates in Semiconductors (Technology), while HOOD operates in Capital Markets (Financial Services). Over the past year, ARM returned 180.94% vs 28.36% for HOOD. At a 0.43 correlation, their price movements are largely independent.

Performance

ARM vs. HOOD - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Arm Holdings plc American Depositary Shares (ARM) and Robinhood Markets, Inc. (HOOD). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ARM achieves a 248.38% return, which is significantly higher than HOOD's -17.60% return.

ARM

• 1D: 11.27%
• 1M: 82.07%
• YTD: 248.38%
• 6M: 190.94%
• 1Y: 180.94%
• 3Y*: —
• 5Y*: —
• 10Y*: —

HOOD

• 1D: 1.04%
• 1M: 20.81%
• YTD: -17.60%
• 6M: -22.02%
• 1Y: 28.36%
• 3Y*: 113.32%
• 5Y*: —
• 10Y*: —

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

ARM vs. HOOD - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
ARM Arm Holdings plc American Depositary Shares	248.38%	-11.39%	64.16%	33.95%
HOOD Robinhood Markets, Inc.	-17.60%	203.54%	192.46%	19.96%

Correlation

The correlation between ARM and HOOD is 0.38, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.38
Correlation (All Time) Calculated using the full available price history since Sep 14, 2023	0.43

Fundamentals

Market Cap ARM : $406.71B HOOD : $85.27B
EPS ARM : $0.85 HOOD : $2.07
PE Ratio ARM : 449.79 HOOD : 45.04
PEG Ratio ARM : 15.43 HOOD : 0.00
PS Ratio ARM : 82.64 HOOD : 21.83
PB Ratio ARM : 49.08 HOOD : 8.80
Total Revenue (TTM) ARM : $4.92B HOOD : $3.91B
Gross Profit (TTM) ARM : $4.66B HOOD : $2.86B
EBITDA (TTM) ARM : $1.37B HOOD : $1.80B

Return for Risk

ARM vs. HOOD — Risk / Return Rank

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

ARM

ARM Risk / Return Rank: 90
ARM Sharpe Ratio Rank: 94
ARM Sortino Ratio Rank: 91
ARM Omega Ratio Rank: 90
ARM Calmar Ratio Rank: 90
ARM Martin Ratio Rank: 86

HOOD

HOOD Risk / Return Rank: 55
HOOD Sharpe Ratio Rank: 56
HOOD Sortino Ratio Rank: 57
HOOD Omega Ratio Rank: 55
HOOD Calmar Ratio Rank: 53
HOOD Martin Ratio Rank: 52

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.

ARM vs. HOOD - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Arm Holdings plc American Depositary Shares (ARM) and Robinhood Markets, Inc. (HOOD). 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.

	ARM	HOOD	Difference
Sharpe ratio: Return per unit of total volatility	2.55	0.38	+2.17
Sortino ratio: Return per unit of downside risk	3.16	1.03	+2.13
Omega ratio: Gain probability vs. loss probability	1.40	1.12	+0.28
Calmar ratio: Return relative to maximum drawdown	4.24	0.46	+3.78
Martin ratio: Return relative to average drawdown	8.33	0.83	+7.50

ARM vs. HOOD - Sharpe Ratio Comparison

The current ARM Sharpe Ratio is 2.55, which is higher than the HOOD Sharpe Ratio of 0.38. The chart below compares the historical Sharpe Ratios of ARM and HOOD, 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

ARM vs. HOOD - Drawdown Comparison

The maximum ARM drawdown since its inception was -53.97%, smaller than the maximum HOOD drawdown of -90.21%. Use the drawdown chart below to compare losses from any high point for ARM and HOOD.

Drawdown Indicators

	ARM	HOOD	Difference
Max Drawdown Largest peak-to-trough decline	-53.97%	-90.21%	+36.24%
Max Drawdown (1Y) Largest decline over 1 year	-41.47%	-57.26%	+15.79%
Max Drawdown (3Y) Largest decline over 3 years	—	-57.26%	—
Current Drawdown Current decline from peak	-7.53%	-38.88%	+31.35%
Average Drawdown Average peak-to-trough decline	-21.33%	-60.85%	+39.52%
Ulcer Index Depth and duration of drawdowns from previous peaks	21.07%	31.69%	-10.62%

Volatility

ARM vs. HOOD - Volatility Comparison

Arm Holdings plc American Depositary Shares (ARM) has a higher volatility of 37.22% compared to Robinhood Markets, Inc. (HOOD) at 23.07%. This indicates that ARM's price experiences larger fluctuations and is considered to be riskier than HOOD based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ARM	HOOD	Difference
Volatility (1M) Calculated over the trailing 1-month period	37.22%	23.07%	+14.15%
Volatility (6M) Calculated over the trailing 6-month period	58.04%	50.85%	+7.19%
Volatility (1Y) Calculated over the trailing 1-year period	68.92%	69.33%	-0.41%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	76.58%	74.06%	+2.52%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	76.58%	74.06%	+2.52%

Dividends

ARM vs. HOOD - Dividend Comparison

Neither ARM nor HOOD has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

ARM vs. HOOD - Profitability Comparison

The chart below illustrates the profitability comparison between Arm Holdings plc American Depositary Shares and Robinhood Markets, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

ARM - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Arm Holdings plc American Depositary Shares reported a gross profit of 1.39B and revenue of 1.49B. Therefore, the gross margin over that period was 93.1%.

HOOD - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Robinhood Markets, Inc. reported a gross profit of 0.00 and revenue of 359.00M. Therefore, the gross margin over that period was 0.0%.

ARM - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Arm Holdings plc American Depositary Shares reported an operating income of 440.00M and revenue of 1.49B, resulting in an operating margin of 29.5%.

HOOD - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Robinhood Markets, Inc. reported an operating income of 0.00 and revenue of 359.00M, resulting in an operating margin of 0.0%.

ARM - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Arm Holdings plc American Depositary Shares reported a net income of 313.00M and revenue of 1.49B, resulting in a net margin of 21.0%.

HOOD - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Robinhood Markets, Inc. reported a net income of 346.00M and revenue of 359.00M, resulting in a net margin of 96.4%.

Frequently Asked Questions

Can I hold both ARM and HOOD in my portfolio?

ARM and HOOD have a correlation of 0.38, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ARM or HOOD?

ARM has higher volatility (37.22%) compared to HOOD (23.07%). In terms of maximum drawdown, ARM dropped -53.97% vs HOOD's -90.21%.

Which has better risk-adjusted returns?

ARM currently has the higher Sharpe Ratio (2.55 vs 0.38), 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.