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SPOK vs. AMRN
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility
Financials

Correlation

The correlation between SPOK and AMRN is 0.34, 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.


Performance

SPOK vs. AMRN - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Spok Holdings, Inc. (SPOK) and Amarin Corporation plc (AMRN). The values are adjusted to include any dividend payments, if applicable.

0.00%1,000.00%2,000.00%3,000.00%4,000.00%December2025FebruaryMarchAprilMay
3,576.57%
-99.33%
SPOK
AMRN

Key characteristics

Sharpe Ratio

SPOK:

0.60

AMRN:

-0.60

Sortino Ratio

SPOK:

1.28

AMRN:

-0.80

Omega Ratio

SPOK:

1.17

AMRN:

0.90

Calmar Ratio

SPOK:

1.23

AMRN:

-0.47

Martin Ratio

SPOK:

3.45

AMRN:

-1.22

Ulcer Index

SPOK:

6.45%

AMRN:

38.25%

Daily Std Dev

SPOK:

28.89%

AMRN:

68.32%

Max Drawdown

SPOK:

-90.59%

AMRN:

-99.97%

Current Drawdown

SPOK:

-2.39%

AMRN:

-99.96%

Fundamentals

Market Cap

SPOK:

$338.21M

AMRN:

$225.94M

EPS

SPOK:

$0.77

AMRN:

-$4.00

PEG Ratio

SPOK:

0.00

AMRN:

-1.74

PS Ratio

SPOK:

2.13

AMRN:

0.96

PB Ratio

SPOK:

1.90

AMRN:

0.46

Total Revenue (TTM)

SPOK:

$139.04M

AMRN:

$172.17M

Gross Profit (TTM)

SPOK:

$103.29M

AMRN:

$48.76M

EBITDA (TTM)

SPOK:

$23.69M

AMRN:

-$61.36M

Returns By Period

In the year-to-date period, SPOK achieves a 4.60% return, which is significantly lower than AMRN's 7.32% return. Over the past 10 years, SPOK has outperformed AMRN with an annualized return of 6.01%, while AMRN has yielded a comparatively lower -12.17% annualized return.


SPOK

YTD

4.60%

1M

8.72%

6M

0.37%

1Y

17.19%

5Y*

17.92%

10Y*

6.01%

AMRN

YTD

7.32%

1M

13.57%

6M

-9.45%

1Y

-40.85%

5Y*

-41.75%

10Y*

-12.17%

*Annualized

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Risk-Adjusted Performance

SPOK vs. AMRN — Risk-Adjusted Performance Rank

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

SPOK
The Risk-Adjusted Performance Rank of SPOK is 7777
Overall Rank
The Sharpe Ratio Rank of SPOK is 7474
Sharpe Ratio Rank
The Sortino Ratio Rank of SPOK is 7272
Sortino Ratio Rank
The Omega Ratio Rank of SPOK is 7272
Omega Ratio Rank
The Calmar Ratio Rank of SPOK is 8787
Calmar Ratio Rank
The Martin Ratio Rank of SPOK is 8282
Martin Ratio Rank

AMRN
The Risk-Adjusted Performance Rank of AMRN is 1919
Overall Rank
The Sharpe Ratio Rank of AMRN is 1919
Sharpe Ratio Rank
The Sortino Ratio Rank of AMRN is 1717
Sortino Ratio Rank
The Omega Ratio Rank of AMRN is 1818
Omega Ratio Rank
The Calmar Ratio Rank of AMRN is 2222
Calmar Ratio Rank
The Martin Ratio Rank of AMRN is 1818
Martin Ratio Rank
The risk-adjusted ranks indicate the investment's position relative to the market. A rank closer to 100 signifies top-performing investments, while a rank closer to 0 might suggest underperformance, based on the selected ratio. The values are calculated based on the past 12 months of returns.

SPOK vs. AMRN - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for Spok Holdings, Inc. (SPOK) and Amarin Corporation plc (AMRN). 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.


The current SPOK Sharpe Ratio is 0.60, which is higher than the AMRN Sharpe Ratio of -0.60. The chart below compares the historical Sharpe Ratios of SPOK and AMRN, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.


Rolling 12-month Sharpe Ratio-1.00-0.500.000.501.00December2025FebruaryMarchAprilMay
0.60
-0.60
SPOK
AMRN

Dividends

SPOK vs. AMRN - Dividend Comparison

SPOK's dividend yield for the trailing twelve months is around 7.61%, while AMRN has not paid dividends to shareholders.


TTM20242023202220212020201920182017201620152014
SPOK
Spok Holdings, Inc.
7.61%7.80%8.09%15.29%5.36%4.49%4.09%3.77%3.19%3.61%3.41%2.88%
AMRN
Amarin Corporation plc
0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%

Drawdowns

SPOK vs. AMRN - Drawdown Comparison

The maximum SPOK drawdown since its inception was -90.59%, smaller than the maximum AMRN drawdown of -99.97%. Use the drawdown chart below to compare losses from any high point for SPOK and AMRN. For additional features, visit the drawdowns tool.


-100.00%-80.00%-60.00%-40.00%-20.00%0.00%December2025FebruaryMarchAprilMay
-2.39%
-99.40%
SPOK
AMRN

Volatility

SPOK vs. AMRN - Volatility Comparison

The current volatility for Spok Holdings, Inc. (SPOK) is 17.43%, while Amarin Corporation plc (AMRN) has a volatility of 18.91%. This indicates that SPOK experiences smaller price fluctuations and is considered to be less risky than AMRN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


5.00%10.00%15.00%20.00%25.00%December2025FebruaryMarchAprilMay
17.43%
18.91%
SPOK
AMRN

Financials

SPOK vs. AMRN - Financials Comparison

This section allows you to compare key financial metrics between Spok Holdings, Inc. and Amarin Corporation plc. 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


40.00M60.00M80.00M100.00M120.00M140.00M160.00M20212022202320242025
36.29M
62.31M
(SPOK) Total Revenue
(AMRN) Total Revenue
Values in USD except per share items

SPOK vs. AMRN - Profitability Comparison

The chart below illustrates the profitability comparison between Spok Holdings, Inc. and Amarin Corporation plc over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

Gross Margin
Operating Margin
Net Margin
Quarterly
Annual

-20.0%0.0%20.0%40.0%60.0%80.0%20212022202320242025
80.1%
-15.4%
(SPOK) Gross Margin
(AMRN) Gross Margin
SPOK - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on May 2025, Spok Holdings, Inc. reported a gross profit of 29.08M and revenue of 36.29M. Therefore, the gross margin over that period was 80.1%.

AMRN - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on May 2025, Amarin Corporation plc reported a gross profit of -9.57M and revenue of 62.31M. Therefore, the gross margin over that period was -15.4%.

SPOK - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on May 2025, Spok Holdings, Inc. reported an operating income of 6.02M and revenue of 36.29M, resulting in an operating margin of 16.6%.

AMRN - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on May 2025, Amarin Corporation plc reported an operating income of -52.52M and revenue of 62.31M, resulting in an operating margin of -84.3%.

SPOK - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on May 2025, Spok Holdings, Inc. reported a net income of 5.20M and revenue of 36.29M, resulting in a net margin of 14.3%.

AMRN - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on May 2025, Amarin Corporation plc reported a net income of -48.62M and revenue of 62.31M, resulting in a net margin of -78.0%.