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ROCK-B.CO vs. AMBBY
Performance
Return for Risk
Drawdowns
Volatility
Dividends
Financials

ROCK-B.CO vs. AMBBY

Last updated Jul 22, 2026
Documentation

ROCK-B.CO (Rockwool A/S) and AMBBY (Ambu A/S) are both stocks. ROCK-B.CO operates in Building Products & Equipment (Industrials), while AMBBY operates in Medical Devices (Healthcare). Over the past 5 years, ROCK-B.CO returned 7.77%/yr vs -21.62%/yr for AMBBY. At a 0.09 correlation, their price movements are largely independent.

Performance

ROCK-B.CO vs. AMBBY - Performance Comparison

The chart below illustrates the hypothetical performance of a DKK 10,000 investment in Rockwool A/S (ROCK-B.CO) and Ambu A/S (AMBBY). The values are adjusted to include any dividend payments, if applicable.

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Different Trading Currencies

ROCK-B.CO is traded in DKK, while AMBBY is traded in USD. To make them comparable, the AMBBY values have been converted to DKK using the latest available exchange rates.

Returns By Period

In the year-to-date period, ROCK-B.CO achieves a -13.12% return, which is significantly higher than AMBBY's -17.91% return.

ROCK-B.CO

1D
-3.72%
1M
-12.95%
6M
-4.41%
YTD
-13.12%
1Y
-32.66%
3Y*
20.27%
5Y*
7.77%
10Y*
25.93%
ALL TIME*
24.91%

AMBBY

1D
0.10%
1M
11.08%
6M
-23.73%
YTD
-17.91%
1Y
-29.42%
3Y*
-12.53%
5Y*
-21.62%
10Y*
—
ALL TIME*
-4.39%
*Multi-year figures are annualized to reflect compound growth (CAGR)

ROCK-B.CO vs. AMBBY - Yearly Performance Comparison

2026 (YTD)20252024202320222021202020192018
ROCK-B.CO
Rockwool A/S		-13.12%13.14%58.97%52.79%-30.90%42.93%96.91%13.99%-8.26%
AMBBY
Ambu A/S		-17.91%-10.07%-8.93%14.98%-44.50%-38.36%136.60%-34.23%67.69%

Correlation

The correlation between ROCK-B.CO and AMBBY is 0.01, 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

0.01

Correlation (3Y)
Calculated over the trailing 3-year period

0.04

Correlation (5Y)
Calculated over the trailing 5-year period

0.10

Correlation (All Time)
Calculated using the full available price history since Apr 13, 2018

0.09

Compare stocks, funds, or ETFs

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Rockwool A/S

Ambu A/S

Often compared with ROCK-B.CO:
ROCK-B.CO vs. PPCROCK-B.CO vs. QQQROCK-B.CO vs. AMBU-B.COROCK-B.CO vs. VERXROCK-B.CO vs. ABBNY

Return for Risk

ROCK-B.CO vs. AMBBY — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
ROCK-B.CO
ROCK-B.CO Risk / Return Rank: 1212
Overall Rank
ROCK-B.CO Sharpe Ratio Rank: 88
Sharpe Ratio Rank
ROCK-B.CO Sortino Ratio Rank: 1212
Sortino Ratio Rank
ROCK-B.CO Omega Ratio Rank: 1111
Omega Ratio Rank
ROCK-B.CO Calmar Ratio Rank: 1515
Calmar Ratio Rank
ROCK-B.CO Martin Ratio Rank: 1414
Martin Ratio Rank
AMBBY
AMBBY Risk / Return Rank: 1414
Overall Rank
AMBBY Sharpe Ratio Rank: 1111
Sharpe Ratio Rank
AMBBY Sortino Ratio Rank: 1414
Sortino Ratio Rank
AMBBY Omega Ratio Rank: 66
Omega Ratio Rank
AMBBY Calmar Ratio Rank: 2121
Calmar Ratio Rank
AMBBY Martin Ratio Rank: 1717
Martin Ratio Rank
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.

ROCK-B.CO vs. AMBBY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Rockwool A/S (ROCK-B.CO) and Ambu A/S (AMBBY). 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.

ROCK-B.COAMBBYDifference
Sharpe ratioReturn per unit of total volatility
-0.88
-0.74

-0.13

Sortino ratioReturn per unit of downside risk
-1.13
-0.87

-0.26

Omega ratioGain probability vs. loss probability

0.85

0.84

+0.01

Calmar ratioReturn relative to maximum drawdown

-0.77

-0.62

-0.16

Martin ratioReturn relative to average drawdown

-1.25

-1.09

-0.16

ROCK-B.CO vs. AMBBY - Sharpe Ratio Comparison

The current ROCK-B.CO Sharpe Ratio is -0.88, which is comparable to the AMBBY Sharpe Ratio of -0.74. The chart below compares the historical Sharpe Ratios of ROCK-B.CO and AMBBY, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

ROCK-B.CO vs. AMBBY - Drawdown Comparison

The maximum ROCK-B.CO drawdown since its inception was -84.90%, roughly equal to the maximum AMBBY drawdown of -84.17%. Use the drawdown chart below to compare losses from any high point for ROCK-B.CO and AMBBY.

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Drawdown Indicators

ROCK-B.COAMBBYDifference

Max Drawdown

Largest peak-to-trough decline

-84.90%

-84.17%

-0.73%

Max Drawdown (1Y)

Largest decline over 1 year

-42.98%

-47.85%

+4.87%

Max Drawdown (3Y)

Largest decline over 3 years

-47.63%

-62.82%

+15.19%

Max Drawdown (5Y)

Largest decline over 5 years

-59.41%

-76.54%

+17.13%

Max Drawdown (10Y)

Largest decline over 10 years

-59.41%

—

—

Current Drawdown

Current decline from peak

-38.54%

-80.60%

+42.06%

Average Drawdown

Average peak-to-trough decline

-24.02%

-56.43%

+32.41%

Ulcer Index

Depth and duration of drawdowns from previous peaks

26.34%

27.03%

-0.69%

Volatility

ROCK-B.CO vs. AMBBY - Volatility Comparison

The current volatility for Rockwool A/S (ROCK-B.CO) is 10.01%, while Ambu A/S (AMBBY) has a volatility of 17.24%. This indicates that ROCK-B.CO experiences smaller price fluctuations and is considered to be less risky than AMBBY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

ROCK-B.COAMBBYDifference

Volatility (1M)

Calculated over the trailing 1-month period

10.01%

17.24%

-7.23%

Volatility (6M)

Calculated over the trailing 6-month period

28.38%

26.12%

+2.26%

Volatility (1Y)

Calculated over the trailing 1-year period

37.87%

39.79%

-1.92%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

44.79%

48.93%

-4.14%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

42.08%

72.43%

-30.35%

Dividends

ROCK-B.CO vs. AMBBY - Dividend Comparison

ROCK-B.CO's dividend yield for the trailing twelve months is around 2.17%, more than AMBBY's 0.61% yield.

PositionTTM20252024202320222021202020192018201720162015
AMBBY
Ambu A/S		0.61%0.48%0.41%0.00%0.00%0.18%0.11%0.00%0.00%0.00%0.00%0.00%
ROCK-B.CO
Rockwool A/S		2.17%27.95%16.85%17.71%21.43%11.19%14.05%18.95%14.18%10.69%9.23%11.66%

Financials

ROCK-B.CO vs. AMBBY - Financials Comparison

This section allows you to compare key financial metrics between Rockwool A/S and Ambu A/S. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.

Quarterly
Annual

Total Revenue: Total amount of money received from sales and other business activities

Values in DKK except per share items

Frequently Asked Questions

ROCK-B.CO and AMBBY have a correlation of 0.01, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

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