ACLS vs. AMBA

Last updated Apr 1, 2026

Compare and contrast key facts about Axcelis Technologies, Inc. (ACLS) and Ambarella, Inc. (AMBA).

Performance

ACLS vs. AMBA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Axcelis Technologies, Inc. (ACLS) and Ambarella, Inc. (AMBA). The values are adjusted to include any dividend payments, if applicable.

ACLS vs. AMBA - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ACLS Axcelis Technologies, Inc.	15.86%	14.98%	-46.13%	63.42%	6.44%	156.04%	20.83%	35.39%	-37.98%	97.25%
AMBA Ambarella, Inc.	-27.34%	-2.61%	18.68%	-25.47%	-59.47%	120.96%	51.62%	73.13%	-40.46%	8.54%

Fundamentals

Market Cap ACLS : $2.90B AMBA : $2.22B
EPS ACLS : $3.81 AMBA : -$1.78
PS Ratio ACLS : 3.50 AMBA : 5.61
PB Ratio ACLS : 2.80 AMBA : 3.74
Total Revenue (TTM) ACLS : $839.05M AMBA : $390.70M
Gross Profit (TTM) ACLS : $376.85M AMBA : $231.27M
EBITDA (TTM) ACLS : $150.28M AMBA : -$71.46M

Returns By Period

In the year-to-date period, ACLS achieves a 15.86% return, which is significantly higher than AMBA's -27.34% return. Over the past 10 years, ACLS has outperformed AMBA with an annualized return of 23.58%, while AMBA has yielded a comparatively lower 1.48% annualized return.

ACLS

• 1D: 2.93%
• 1M: 12.67%
• YTD: 15.86%
• 6M: -4.67%
• 1Y: 87.40%
• 3Y*: -11.27%
• 5Y*: 14.35%
• 10Y*: 23.58%

AMBA

• 1D: 5.81%
• 1M: -14.69%
• YTD: -27.34%
• 6M: -37.62%
• 1Y: 2.27%
• 3Y*: -12.72%
• 5Y*: -13.33%
• 10Y*: 1.48%

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

Return for Risk

ACLS vs. AMBA — Risk / Return Rank

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

ACLS

ACLS Risk / Return Rank: 84
ACLS Sharpe Ratio Rank: 86
ACLS Sortino Ratio Rank: 81
ACLS Omega Ratio Rank: 79
ACLS Calmar Ratio Rank: 88
ACLS Martin Ratio Rank: 85

AMBA

AMBA Risk / Return Rank: 43
AMBA Sharpe Ratio Rank: 43
AMBA Sortino Ratio Rank: 44
AMBA Omega Ratio Rank: 44
AMBA Calmar Ratio Rank: 42
AMBA Martin Ratio Rank: 43

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.

ACLS vs. AMBA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Axcelis Technologies, Inc. (ACLS) and Ambarella, Inc. (AMBA). 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.

	ACLS	AMBA	Difference
Sharpe ratio Return per unit of total volatility	1.58	0.03	+1.55
Sortino ratio Return per unit of downside risk	2.15	0.54	+1.60
Omega ratio Gain probability vs. loss probability	1.28	1.08	+0.20
Calmar ratio Return relative to maximum drawdown	3.33	0.03	+3.29
Martin ratio Return relative to average drawdown	7.67	0.08	+7.59
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ACLS vs. AMBA - Sharpe Ratio Comparison

The current ACLS Sharpe Ratio is 1.58, which is higher than the AMBA Sharpe Ratio of 0.03. The chart below compares the historical Sharpe Ratios of ACLS and AMBA, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	ACLS	AMBA	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.58	0.03	+1.55
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.27	-0.22	+0.49
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.45	0.03	+0.42
Sharpe Ratio (All Time) Calculated using the full available price history	-0.00	0.30	-0.30

Correlation

The correlation between ACLS and AMBA is 0.47, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

ACLS vs. AMBA - Dividend Comparison

Neither ACLS nor AMBA has paid dividends to shareholders.

Tickers have no history of dividend payments

Drawdowns

ACLS vs. AMBA - Drawdown Comparison

The maximum ACLS drawdown since its inception was -99.34%, which is greater than AMBA's maximum drawdown of -81.65%. Use the drawdown chart below to compare losses from any high point for ACLS and AMBA.

Drawdown Indicators

	ACLS	AMBA	Difference
Max Drawdown Largest peak-to-trough decline	-99.34%	-81.65%	-17.69%
Max Drawdown (1Y) Largest decline over 1 year	-26.20%	-49.06%	+22.86%
Max Drawdown (5Y) Largest decline over 5 years	-78.84%	-81.65%	+2.81%
Max Drawdown (10Y) Largest decline over 10 years	-78.84%	-81.65%	+2.81%
Current Drawdown Current decline from peak	-53.57%	-76.26%	+22.69%
Average Drawdown Average peak-to-trough decline	-72.65%	-48.11%	-24.54%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.37%	20.25%	-8.88%

Volatility

ACLS vs. AMBA - Volatility Comparison

Axcelis Technologies, Inc. (ACLS) has a higher volatility of 16.49% compared to Ambarella, Inc. (AMBA) at 13.61%. This indicates that ACLS's price experiences larger fluctuations and is considered to be riskier than AMBA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ACLS	AMBA	Difference
Volatility (1M) Calculated over the trailing 1-month period	16.49%	13.61%	+2.88%
Volatility (6M) Calculated over the trailing 6-month period	39.36%	46.82%	-7.46%
Volatility (1Y) Calculated over the trailing 1-year period	55.64%	67.07%	-11.43%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	53.88%	61.74%	-7.86%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	52.63%	56.05%	-3.42%

Financials

ACLS vs. AMBA - Profitability Comparison

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

ACLS - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Axcelis Technologies, Inc. reported a gross profit of 111.93M and revenue of 238.33M. Therefore, the gross margin over that period was 47.0%.

AMBA - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Ambarella, Inc. reported a gross profit of 58.16M and revenue of 100.87M. Therefore, the gross margin over that period was 57.7%.

ACLS - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Axcelis Technologies, Inc. reported an operating income of 36.17M and revenue of 238.33M, resulting in an operating margin of 15.2%.

AMBA - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Ambarella, Inc. reported an operating income of -19.65M and revenue of 100.87M, resulting in an operating margin of -19.5%.

ACLS - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Axcelis Technologies, Inc. reported a net income of 34.30M and revenue of 238.33M, resulting in a net margin of 14.4%.

AMBA - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Ambarella, Inc. reported a net income of -16.44M and revenue of 100.87M, resulting in a net margin of -16.3%.