NBTX vs. ASYS

Last updated Jun 23, 2026

NBTX (Nanobiotix S.A.) and ASYS (Amtech Systems, Inc.) are both stocks. NBTX operates in Biotechnology (Healthcare), while ASYS operates in Semiconductor Equipment & Materials (Technology). Over the past 5 years, NBTX returned 19.56%/yr vs 20.04%/yr for ASYS. At a 0.14 correlation, their price movements are largely independent.

Performance

NBTX vs. ASYS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Nanobiotix S.A. (NBTX) and Amtech Systems, Inc. (ASYS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, NBTX achieves a 52.38% return, which is significantly lower than ASYS's 75.54% return.

NBTX

• 1D: -2.87%
• 1M: -14.09%
• YTD: 52.38%
• 6M: 53.98%
• 1Y: 688.14%
• 3Y*: 85.89%
• 5Y*: 19.56%
• 10Y*: —

ASYS

• 1D: -0.05%
• 1M: -0.23%
• YTD: 75.54%
• 6M: 72.65%
• 1Y: 439.95%
• 3Y*: 34.72%
• 5Y*: 20.04%
• 10Y*: 13.57%

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

NBTX vs. ASYS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
NBTX Nanobiotix S.A.	52.38%	705.57%	-60.58%	98.37%	-54.69%	-50.91%	-9.09%
ASYS Amtech Systems, Inc.	75.54%	130.28%	29.76%	-44.74%	-23.08%	54.86%	0.16%

Correlation

The correlation between NBTX and ASYS is 0.21, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.21
Correlation (3Y) Calculated over the trailing 3-year period	0.15
Correlation (5Y) Calculated over the trailing 5-year period	0.13
Correlation (All Time) Calculated using the full available price history since Dec 11, 2020	0.14

Fundamentals

EPS NBTX : -€1.80 ASYS : $0.14
PS Ratio NBTX : 30.49 ASYS : 4.07
Total Revenue (TTM) NBTX : €47.94M ASYS : $78.84M
Gross Profit (TTM) NBTX : €47.94M ASYS : $36.21M
EBITDA (TTM) NBTX : -€55.82M ASYS : $5.86M

Return for Risk

NBTX vs. ASYS — Risk / Return Rank

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

NBTX

NBTX Risk / Return Rank: 97
NBTX Sharpe Ratio Rank: 99
NBTX Sortino Ratio Rank: 96
NBTX Omega Ratio Rank: 95
NBTX Calmar Ratio Rank: 99
NBTX Martin Ratio Rank: 98

ASYS

ASYS Risk / Return Rank: 96
ASYS Sharpe Ratio Rank: 99
ASYS Sortino Ratio Rank: 94
ASYS Omega Ratio Rank: 94
ASYS Calmar Ratio Rank: 98
ASYS Martin Ratio Rank: 97

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.

NBTX vs. ASYS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Nanobiotix S.A. (NBTX) and Amtech Systems, Inc. (ASYS). 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.

	NBTX	ASYS	Difference
Sharpe ratio: Return per unit of total volatility	6.43	4.96	+1.47
Sortino ratio: Return per unit of downside risk	4.31	3.77	+0.55
Omega ratio: Gain probability vs. loss probability	1.55	1.52	+0.03
Calmar ratio: Return relative to maximum drawdown	13.82	11.05	+2.78
Martin ratio: Return relative to average drawdown	32.01	24.60	+7.41

NBTX vs. ASYS - Sharpe Ratio Comparison

The current NBTX Sharpe Ratio is 6.43, which is comparable to the ASYS Sharpe Ratio of 4.96. The chart below compares the historical Sharpe Ratios of NBTX and ASYS, 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

NBTX vs. ASYS - Drawdown Comparison

The maximum NBTX drawdown since its inception was -89.94%, smaller than the maximum ASYS drawdown of -97.05%. Use the drawdown chart below to compare losses from any high point for NBTX and ASYS.

Drawdown Indicators

	NBTX	ASYS	Difference
Max Drawdown Largest peak-to-trough decline	-89.94%	-97.05%	+7.11%
Max Drawdown (1Y) Largest decline over 1 year	-50.25%	-40.15%	-10.10%
Max Drawdown (3Y) Largest decline over 3 years	-73.88%	-69.29%	-4.59%
Max Drawdown (5Y) Largest decline over 5 years	-86.80%	-78.40%	-8.40%
Max Drawdown (10Y) Largest decline over 10 years	—	-78.40%	—
Current Drawdown Current decline from peak	-36.03%	-24.22%	-11.81%
Average Drawdown Average peak-to-trough decline	-57.32%	-72.78%	+15.46%
Ulcer Index Depth and duration of drawdowns from previous peaks	21.66%	18.00%	+3.66%

Volatility

NBTX vs. ASYS - Volatility Comparison

The current volatility for Nanobiotix S.A. (NBTX) is 15.64%, while Amtech Systems, Inc. (ASYS) has a volatility of 29.59%. This indicates that NBTX experiences smaller price fluctuations and is considered to be less risky than ASYS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	NBTX	ASYS	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.64%	29.59%	-13.95%
Volatility (6M) Calculated over the trailing 6-month period	64.77%	69.10%	-4.33%
Volatility (1Y) Calculated over the trailing 1-year period	108.20%	89.64%	+18.56%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	136.77%	66.97%	+69.80%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	131.33%	62.39%	+68.94%

Dividends

NBTX vs. ASYS - Dividend Comparison

Neither NBTX nor ASYS has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both NBTX and ASYS in my portfolio?

NBTX and ASYS have a correlation of 0.21, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, NBTX or ASYS?

ASYS has higher volatility (29.59%) compared to NBTX (15.64%). In terms of maximum drawdown, NBTX dropped -89.94% vs ASYS's -97.05%.

Which has better risk-adjusted returns?

NBTX currently has the higher Sharpe Ratio (6.43 vs 4.96), 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.