CNK vs. IRDM

Last updated Apr 2, 2026

Compare and contrast key facts about Cinemark Holdings, Inc. (CNK) and Iridium Communications Inc. (IRDM).

Performance

CNK vs. IRDM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Cinemark Holdings, Inc. (CNK) and Iridium Communications Inc. (IRDM). The values are adjusted to include any dividend payments, if applicable.

CNK vs. IRDM - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CNK Cinemark Holdings, Inc.	23.19%	-24.07%	119.87%	62.70%	-46.28%	-7.41%	-47.79%	-1.90%	6.36%	-6.39%
IRDM Iridium Communications Inc.	65.09%	-38.51%	-28.09%	-19.10%	24.49%	5.00%	59.60%	33.55%	56.36%	22.92%

Fundamentals

Market Cap CNK : $3.40B IRDM : $2.99B
EPS CNK : $1.05 IRDM : $1.07
PE Ratio CNK : 27.11 IRDM : 26.55
PS Ratio CNK : 1.20 IRDM : 3.48
PB Ratio CNK : 8.40 IRDM : 6.46
Total Revenue (TTM) CNK : $3.12B IRDM : $871.66M
Gross Profit (TTM) CNK : $1.13B IRDM : $479.77M
EBITDA (TTM) CNK : $448.90M IRDM : $450.05M

Returns By Period

In the year-to-date period, CNK achieves a 23.19% return, which is significantly lower than IRDM's 65.09% return. Over the past 10 years, CNK has underperformed IRDM with an annualized return of -0.57%, while IRDM has yielded a comparatively higher 14.34% annualized return.

CNK

• 1D: 0.07%
• 1M: 0.28%
• YTD: 23.19%
• 6M: 2.51%
• 1Y: 17.70%
• 3Y*: 25.13%
• 5Y*: 6.15%
• 10Y*: -0.57%

IRDM

• 1D: 2.81%
• 1M: 15.84%
• YTD: 65.09%
• 6M: 63.97%
• 1Y: 7.29%
• 3Y*: -21.21%
• 5Y*: -5.46%
• 10Y*: 14.34%

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

Return for Risk

CNK vs. IRDM — Risk / Return Rank

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

CNK

CNK Risk / Return Rank: 52
CNK Sharpe Ratio Rank: 57
CNK Sortino Ratio Rank: 52
CNK Omega Ratio Rank: 50
CNK Calmar Ratio Rank: 52
CNK Martin Ratio Rank: 50

IRDM

IRDM Risk / Return Rank: 44
IRDM Sharpe Ratio Rank: 45
IRDM Sortino Ratio Rank: 44
IRDM Omega Ratio Rank: 45
IRDM Calmar Ratio Rank: 44
IRDM Martin Ratio Rank: 43

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.

CNK vs. IRDM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Cinemark Holdings, Inc. (CNK) and Iridium Communications Inc. (IRDM). 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.

	CNK	IRDM	Difference
Sharpe ratio Return per unit of total volatility	0.47	0.13	+0.34
Sortino ratio Return per unit of downside risk	0.90	0.58	+0.32
Omega ratio Gain probability vs. loss probability	1.11	1.08	+0.03
Calmar ratio Return relative to maximum drawdown	0.46	0.14	+0.32
Martin ratio Return relative to average drawdown	0.83	0.23	+0.60
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CNK vs. IRDM - Sharpe Ratio Comparison

The current CNK Sharpe Ratio is 0.47, which is higher than the IRDM Sharpe Ratio of 0.13. The chart below compares the historical Sharpe Ratios of CNK and IRDM, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	CNK	IRDM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.47	0.13	+0.34
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.14	-0.13	+0.26
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.01	0.32	-0.33
Sharpe Ratio (All Time) Calculated using the full available price history	0.11	0.17	-0.06

Correlation

The correlation between CNK and IRDM is 0.24, 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.

Dividends

CNK vs. IRDM - Dividend Comparison

CNK's dividend yield for the trailing twelve months is around 1.19%, less than IRDM's 2.07% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CNK Cinemark Holdings, Inc.	1.19%	1.42%	0.00%	0.00%	0.00%	0.00%	2.07%	4.02%	3.58%	3.33%	2.82%	2.99%
IRDM Iridium Communications Inc.	2.07%	3.34%	1.90%	1.26%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

CNK vs. IRDM - Drawdown Comparison

The maximum CNK drawdown since its inception was -83.80%, which is greater than IRDM's maximum drawdown of -75.34%. Use the drawdown chart below to compare losses from any high point for CNK and IRDM.

Drawdown Indicators

	CNK	IRDM	Difference
Max Drawdown Largest peak-to-trough decline	-83.80%	-75.34%	-8.46%
Max Drawdown (1Y) Largest decline over 1 year	-34.65%	-50.74%	+16.09%
Max Drawdown (5Y) Largest decline over 5 years	-66.56%	-75.34%	+8.78%
Max Drawdown (10Y) Largest decline over 10 years	-83.80%	-75.34%	-8.46%
Current Drawdown Current decline from peak	-28.63%	-54.97%	+26.34%
Average Drawdown Average peak-to-trough decline	-26.17%	-25.92%	-0.25%
Ulcer Index Depth and duration of drawdowns from previous peaks	19.25%	31.06%	-11.81%

Volatility

CNK vs. IRDM - Volatility Comparison

The current volatility for Cinemark Holdings, Inc. (CNK) is 8.73%, while Iridium Communications Inc. (IRDM) has a volatility of 15.72%. This indicates that CNK experiences smaller price fluctuations and is considered to be less risky than IRDM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CNK	IRDM	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.73%	15.72%	-6.99%
Volatility (6M) Calculated over the trailing 6-month period	30.97%	40.83%	-9.86%
Volatility (1Y) Calculated over the trailing 1-year period	37.67%	57.40%	-19.73%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	44.31%	43.78%	+0.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	55.73%	44.36%	+11.37%

Financials

CNK vs. IRDM - Profitability Comparison

The chart below illustrates the profitability comparison between Cinemark Holdings, Inc. and Iridium Communications Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

CNK - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Cinemark Holdings, Inc. reported a gross profit of 0.00 and revenue of 776.30M. Therefore, the gross margin over that period was 0.0%.

IRDM - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Iridium Communications Inc. reported a gross profit of 168.52M and revenue of 212.94M. Therefore, the gross margin over that period was 79.1%.

CNK - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Cinemark Holdings, Inc. reported an operating income of 64.50M and revenue of 776.30M, resulting in an operating margin of 8.3%.

IRDM - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Iridium Communications Inc. reported an operating income of 55.25M and revenue of 212.94M, resulting in an operating margin of 26.0%.

CNK - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Cinemark Holdings, Inc. reported a net income of 34.10M and revenue of 776.30M, resulting in a net margin of 4.4%.

IRDM - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Iridium Communications Inc. reported a net income of 24.87M and revenue of 212.94M, resulting in a net margin of 11.7%.