Sartorius AG (SRT3.DE) stock analysis

In our weekly check, Sartorius AG is graded C (A to F). Of 25 checks on debt, profit, cash flow and trend: 10 pass, warnings: 9, red flags: 6.

About Sartorius AG

Sartorius AG is a Healthcare company (Medical - Instruments & Supplies) based in Germany, listed on XETRA as SRT3.DE.

What our checks show for SRT3.DE

Red flags

• The net margin fell by 6.4 points over 5 years, to 6%: the company keeps less of each sale as profit.
• The gross margin fell by 7.9 points, to 45.4%: costs are rising faster than prices.
• Revenue fell 4.2% a year over the last 3 years.
• The price is 72.5 times earnings (P/E): the market already pays for a lot of future growth.
• The stock has fallen as much as 87% from a peak. Would you have held through that?
• Thinly traded (about 97 thousand shares a day): buying and selling can move the price.

Warning signs

• Net debt is 3.4x a year of EBITDA (debt/equity 1.33). That limits room in a downturn and raises refinancing risk.
• Operating profit covers interest only 2.9 times: a weak year could make the payments hard.
• Earnings per share fell 38.1% a year over the last 3 years.
• Net profit fell 37.9% a year over the last 3 years.
• The net margin is only 6%: little room if costs rise.
• The price swings a lot: 39.5% annual volatility. Expect large ups and downs.
• Recovering from its deepest fall took about 3 years.
• Beta 1.45: the stock usually moves more than the market, both up and down.
• Return on capital (ROCE) is only 8%.

Strengths

• Operating cash flow is 3.44x net profit: the profit arrives as real cash.
• Analysts expect earnings per share to grow about 47.6% a year over the next years.
• Analysts expect the net margin to improve by 5.7 points from today's 6%.
• The dividend takes 23% of profit: there is a cushion.
• A large company: market value $19.9 billion.
• Pay in shares is only 0% of free cash flow.

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Questions

What grade does Sartorius AG (SRT3.DE) have?

In our weekly check, Sartorius AG is graded C (A to F). Of 25 checks on debt, profit, cash flow and trend: 10 pass, warnings: 9, red flags: 6. The grade is a risk check, not a buy or sell recommendation.

What are the main risks of SRT3.DE stock?

This week's biggest flags for Sartorius AG: Margins falling, Gross margin falling, Weak revenue growth. In total 15 of 25 checks show a warning or a red flag.

What does Sartorius AG do?

Sartorius AG is a Healthcare company (Medical - Instruments & Supplies) based in Germany, listed on XETRA as SRT3.DE.

The grade is a risk check, not a price forecast, and not investment advice. In our 10-year test (S&P 500, 2016-2026), stocks we graded A or B fell more than 30% 2-3 times less often than D or F, without a lower average return.

Updated 2026-10-31

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