AXTI vs. RMBS

Last updated Apr 2, 2026

Compare and contrast key facts about AXT, Inc. (AXTI) and Rambus Inc. (RMBS).

Performance

AXTI vs. RMBS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AXT, Inc. (AXTI) and Rambus Inc. (RMBS). The values are adjusted to include any dividend payments, if applicable.

AXTI vs. RMBS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
AXTI AXT, Inc.	188.32%	653.46%	-9.58%	-45.21%	-50.28%	-7.94%	120.00%	-0.00%	-50.00%	81.25%
RMBS Rambus Inc.	-2.11%	73.84%	-22.55%	90.54%	21.88%	68.33%	26.75%	79.60%	-46.06%	3.27%

Fundamentals

Market Cap AXTI : $2.11B RMBS : $9.87B
EPS AXTI : -$0.48 RMBS : $2.11
PS Ratio AXTI : 23.51 RMBS : 13.87
PB Ratio AXTI : 7.81 RMBS : 7.23
Total Revenue (TTM) AXTI : $88.33M RMBS : $707.63M
Gross Profit (TTM) AXTI : $11.24M RMBS : $537.56M
EBITDA (TTM) AXTI : -$14.38M RMBS : $307.44M

Returns By Period

In the year-to-date period, AXTI achieves a 188.32% return, which is significantly higher than RMBS's -2.11% return. Over the past 10 years, AXTI has outperformed RMBS with an annualized return of 33.87%, while RMBS has yielded a comparatively lower 20.57% annualized return.

AXTI

• 1D: -17.27%
• 1M: 1.77%
• YTD: 188.32%
• 6M: 860.08%
• 1Y: 2,961.04%
• 3Y*: 127.95%
• 5Y*: 30.81%
• 10Y*: 33.87%

RMBS

• 1D: 4.56%
• 1M: -9.03%
• YTD: -2.11%
• 6M: -12.79%
• 1Y: 72.02%
• 3Y*: 20.62%
• 5Y*: 34.65%
• 10Y*: 20.57%

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

Return for Risk

AXTI vs. RMBS — Risk / Return Rank

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

AXTI

AXTI Risk / Return Rank: 100
AXTI Sharpe Ratio Rank: 100
AXTI Sortino Ratio Rank: 99
AXTI Omega Ratio Rank: 98
AXTI Calmar Ratio Rank: 100
AXTI Martin Ratio Rank: 100

RMBS

RMBS Risk / Return Rank: 74
RMBS Sharpe Ratio Rank: 74
RMBS Sortino Ratio Rank: 72
RMBS Omega Ratio Rank: 71
RMBS Calmar Ratio Rank: 76
RMBS Martin Ratio Rank: 78

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.

AXTI vs. RMBS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AXT, Inc. (AXTI) and Rambus Inc. (RMBS). 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.

	AXTI	RMBS	Difference
Sharpe ratio Return per unit of total volatility	24.28	1.03	+23.25
Sortino ratio Return per unit of downside risk	6.31	1.72	+4.59
Omega ratio Gain probability vs. loss probability	1.78	1.22	+0.56
Calmar ratio Return relative to maximum drawdown	88.65	2.01	+86.64
Martin ratio Return relative to average drawdown	261.24	5.62	+255.62
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AXTI vs. RMBS - Sharpe Ratio Comparison

The current AXTI Sharpe Ratio is 24.28, which is higher than the RMBS Sharpe Ratio of 1.03. The chart below compares the historical Sharpe Ratios of AXTI and RMBS, 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

	AXTI	RMBS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	24.28	1.03	+23.25
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.34	0.67	-0.33
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.43	0.47	-0.04
Sharpe Ratio (All Time) Calculated using the full available price history	0.07	0.13	-0.06

Correlation

The correlation between AXTI and RMBS is 0.32, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

AXTI vs. RMBS - Dividend Comparison

Neither AXTI nor RMBS has paid dividends to shareholders.

Tickers have no history of dividend payments

Drawdowns

AXTI vs. RMBS - Drawdown Comparison

The maximum AXTI drawdown since its inception was -98.57%, roughly equal to the maximum RMBS drawdown of -97.16%. Use the drawdown chart below to compare losses from any high point for AXTI and RMBS.

Drawdown Indicators

	AXTI	RMBS	Difference
Max Drawdown Largest peak-to-trough decline	-98.57%	-97.16%	-1.41%
Max Drawdown (1Y) Largest decline over 1 year	-36.59%	-36.69%	+0.10%
Max Drawdown (5Y) Largest decline over 5 years	-90.65%	-48.83%	-41.82%
Max Drawdown (10Y) Largest decline over 10 years	-92.45%	-52.95%	-39.50%
Current Drawdown Current decline from peak	-31.12%	-28.57%	-2.55%
Average Drawdown Average peak-to-trough decline	-82.77%	-75.32%	-7.45%
Ulcer Index Depth and duration of drawdowns from previous peaks	12.41%	13.13%	-0.72%

Volatility

AXTI vs. RMBS - Volatility Comparison

AXT, Inc. (AXTI) has a higher volatility of 52.34% compared to Rambus Inc. (RMBS) at 19.38%. This indicates that AXTI's price experiences larger fluctuations and is considered to be riskier than RMBS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AXTI	RMBS	Difference
Volatility (1M) Calculated over the trailing 1-month period	52.34%	19.38%	+32.96%
Volatility (6M) Calculated over the trailing 6-month period	101.66%	51.49%	+50.17%
Volatility (1Y) Calculated over the trailing 1-year period	123.91%	70.11%	+53.80%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	91.42%	51.88%	+39.54%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	79.61%	44.29%	+35.32%

Financials

AXTI vs. RMBS - Profitability Comparison

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

AXTI - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, AXT, Inc. reported a gross profit of 4.83M and revenue of 23.04M. Therefore, the gross margin over that period was 21.0%.

RMBS - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Rambus Inc. reported a gross profit of 150.03M and revenue of 190.24M. Therefore, the gross margin over that period was 78.9%.

AXTI - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, AXT, Inc. reported an operating income of -3.83M and revenue of 23.04M, resulting in an operating margin of -16.6%.

RMBS - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Rambus Inc. reported an operating income of 70.83M and revenue of 190.24M, resulting in an operating margin of 37.2%.

AXTI - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, AXT, Inc. reported a net income of -3.55M and revenue of 23.04M, resulting in a net margin of -15.4%.

RMBS - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Rambus Inc. reported a net income of 63.84M and revenue of 190.24M, resulting in a net margin of 33.6%.