FLOW.AS vs. AMPH

Last updated Jun 13, 2026

FLOW.AS (Flow Traders BV) and AMPH (Amphastar Pharmaceuticals, Inc.) are both stocks. FLOW.AS operates in Capital Markets (Financial Services), while AMPH operates in Drug Manufacturers - Specialty & Generic (Healthcare). Over the past 10 years, FLOW.AS returned 4.89%/yr vs 2.15%/yr for AMPH. At a correlation of -0.03, they often move in opposite directions.

Performance

FLOW.AS vs. AMPH - Performance Comparison

The chart below illustrates the hypothetical performance of a €10,000 investment in Flow Traders BV (FLOW.AS) and Amphastar Pharmaceuticals, Inc. (AMPH). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

FLOW.AS is traded in EUR, while AMPH is traded in USD. To make them comparable, the AMPH values have been converted to EUR using the latest available exchange rates.

Returns By Period

In the year-to-date period, FLOW.AS achieves a 4.78% return, which is significantly higher than AMPH's -23.83% return. Over the past 10 years, FLOW.AS has outperformed AMPH with an annualized return of 4.89%, while AMPH has yielded a comparatively lower 2.15% annualized return.

FLOW.AS

• 1D: 3.05%
• 1M: -9.62%
• YTD: 4.78%
• 6M: 10.31%
• 1Y: -9.30%
• 3Y*: 7.96%
• 5Y*: -3.70%
• 10Y*: 4.89%

AMPH

• 1D: -2.06%
• 1M: 17.16%
• YTD: -23.83%
• 6M: -19.32%
• 1Y: -22.31%
• 3Y*: -26.45%
• 5Y*: 1.09%
• 10Y*: 2.15%

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

FLOW.AS vs. AMPH - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FLOW.AS Flow Traders BV	4.78%	16.51%	21.00%	-12.74%	-29.80%	31.04%	45.22%	-18.45%	48.30%	-36.55%
AMPH Amphastar Pharmaceuticals, Inc.	-23.83%	-36.43%	-36.00%	114.12%	27.77%	24.48%	-4.34%	-0.88%	8.29%	-8.38%

Correlation

The correlation between FLOW.AS and AMPH is -0.09, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.09
Correlation (3Y) Calculated over the trailing 3-year period	-0.02
Correlation (5Y) Calculated over the trailing 5-year period	0.01
Correlation (10Y) Calculated over the trailing 10-year period	-0.04
Correlation (All Time) Calculated using the full available price history since Jul 10, 2015	-0.03

Return for Risk

FLOW.AS vs. AMPH — Risk / Return Rank

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

FLOW.AS

FLOW.AS Risk / Return Rank: 28
FLOW.AS Sharpe Ratio Rank: 29
FLOW.AS Sortino Ratio Rank: 27
FLOW.AS Omega Ratio Rank: 26
FLOW.AS Calmar Ratio Rank: 31
FLOW.AS Martin Ratio Rank: 31

AMPH

AMPH Risk / Return Rank: 23
AMPH Sharpe Ratio Rank: 23
AMPH Sortino Ratio Rank: 25
AMPH Omega Ratio Rank: 24
AMPH Calmar Ratio Rank: 24
AMPH Martin Ratio Rank: 20

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.

FLOW.AS vs. AMPH - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Flow Traders BV (FLOW.AS) and Amphastar Pharmaceuticals, Inc. (AMPH). 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.

	FLOW.AS	AMPH	Difference
Sharpe ratio: Return per unit of total volatility	-0.32	-0.44	+0.12
Sortino ratio: Return per unit of downside risk	-0.24	-0.29	+0.05
Omega ratio: Gain probability vs. loss probability	0.96	0.96	+0.01
Calmar ratio: Return relative to maximum drawdown	-0.38	-0.53	+0.15
Martin ratio: Return relative to average drawdown	-0.66	-1.06	+0.40

FLOW.AS vs. AMPH - Sharpe Ratio Comparison

The current FLOW.AS Sharpe Ratio is -0.32, which is comparable to the AMPH Sharpe Ratio of -0.44. The chart below compares the historical Sharpe Ratios of FLOW.AS and AMPH, 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

FLOW.AS vs. AMPH - Drawdown Comparison

The maximum FLOW.AS drawdown since its inception was -61.93%, smaller than the maximum AMPH drawdown of -75.55%. Use the drawdown chart below to compare losses from any high point for FLOW.AS and AMPH.

Drawdown Indicators

	FLOW.AS	AMPH	Difference
Max Drawdown Largest peak-to-trough decline	-61.93%	-75.55%	+13.62%
Max Drawdown (1Y) Largest decline over 1 year	-23.86%	-45.18%	+21.32%
Max Drawdown (3Y) Largest decline over 3 years	-28.55%	-75.55%	+47.00%
Max Drawdown (5Y) Largest decline over 5 years	-54.52%	-75.55%	+21.03%
Max Drawdown (10Y) Largest decline over 10 years	-54.52%	-75.55%	+21.03%
Current Drawdown Current decline from peak	-20.36%	-70.73%	+50.37%
Average Drawdown Average peak-to-trough decline	-29.40%	-25.05%	-4.35%
Ulcer Index Depth and duration of drawdowns from previous peaks	12.70%	22.67%	-9.97%

Volatility

FLOW.AS vs. AMPH - Volatility Comparison

Flow Traders BV (FLOW.AS) has a higher volatility of 16.12% compared to Amphastar Pharmaceuticals, Inc. (AMPH) at 12.22%. This indicates that FLOW.AS's price experiences larger fluctuations and is considered to be riskier than AMPH based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FLOW.AS	AMPH	Difference
Volatility (1M) Calculated over the trailing 1-month period	16.12%	12.22%	+3.90%
Volatility (6M) Calculated over the trailing 6-month period	21.73%	46.45%	-24.72%
Volatility (1Y) Calculated over the trailing 1-year period	27.98%	53.89%	-25.91%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	31.37%	45.54%	-14.17%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	31.59%	43.33%	-11.74%

Dividends

FLOW.AS vs. AMPH - Dividend Comparison

Neither FLOW.AS nor AMPH has paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AMPH Amphastar Pharmaceuticals, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
FLOW.AS Flow Traders BV	0.00%	0.00%	0.70%	6.12%	4.85%	10.87%	16.81%	6.27%	6.11%	5.00%	4.73%	1.10%

Financials

Frequently Asked Questions

Can I hold both FLOW.AS and AMPH in my portfolio?

FLOW.AS and AMPH have a correlation of -0.09, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.