ACLS vs IRDM

Comparison between Axcelis Technologies Inc (ACLS, Company) and Iridium Communications Inc (IRDM, Company).

ACLS is from the Technology sector, while IRDM is from the Communication Services sector.

5-Year PerformanceACLS has outperformed IRDM, delivering a return of +34.1% compared to +5.2%

ACLS vs IRDM - Performance Comparison

Log

Key Characteristics

Financial metrics and valuation ratios

Metric	ACLS(COMPANY)	IRDM(COMPANY)
Market Cap	$4.84B	$4.82B
Max Drawdown	99.34%	76.45%
Sharpe Ratio	1.77	1.17
5Y Beta	1.89	0.90
Industry	Semiconductor Equipment & Materials	Telecom Services
P/E Ratio	48.39	44.07
Forward P/E	41.84	41.15
PEG Ratio	1.45	0.67
Dividend Yield	N/A	1.29%
5Y EPS CAGR	14.60%	N/A
Debt to Equity	0.00%	0.00%
Free Cash Flow Yield	1.83%	6.32%
P/S Ratio	6.31	5.44
P/B Ratio	4.63	10.18

Market Cap

Winner

ACLS

$4.84B

IRDM

$4.82B

Max Drawdown

ACLS

99.34%

Winner

IRDM

76.45%

Sharpe Ratio

Winner

ACLS

1.77

IRDM

1.17

5Y Beta

ACLS

1.89

Winner

IRDM

0.90

Industry

ACLS

Semiconductor Equipment & Materials

IRDM

Telecom Services

P/E Ratio

ACLS

48.39

Winner

IRDM

44.07

Forward P/E

ACLS

41.84

Winner

IRDM

41.15

PEG Ratio

ACLS

1.45

Winner

IRDM

0.67

Dividend Yield

ACLS

N/A

IRDM

1.29%

5Y EPS CAGR

ACLS

14.60%

IRDM

N/A

Debt to Equity

ACLS

0.00%

IRDM

0.00%

Free Cash Flow Yield

ACLS

1.83%

Winner

IRDM

6.32%

P/S Ratio

ACLS

6.31

Winner

IRDM

5.44

P/B Ratio

Winner

ACLS

4.63

IRDM

10.18

ACLS vs IRDM - Historical Returns

Returns include dividend reinvestment.

Period	ACLS	IRDM
1 month	+11.43%	+13.59%
3 months	+111.46%	+92.11%
6 months	+110.40%	+156.33%
1 year	+161.38%	+66.41%
5 years(CAGR)	+34.10%	+5.22%
10 years(CAGR)	+32.71%	+19.89%
Max(CAGR)	+2.47%	+9.86%

ACLS

+11.43%

Winner

IRDM

+13.59%

Winner

ACLS

+111.46%

IRDM

+92.11%

ACLS

+110.40%

Winner

IRDM

+156.33%

Winner

ACLS

+161.38%

IRDM

+66.41%

5Y(CAGR)

Winner

ACLS

+34.10%

IRDM

+5.22%

10Y(CAGR)

Winner

ACLS

+32.71%

IRDM

+19.89%

Max(CAGR)

ACLS

+2.47%

Winner

IRDM

+9.86%

ACLS vs IRDM - Annual Returns (2000 - 2026)

Returns include dividend reinvestment.

Year	ACLS	IRDM
2026	+109.15%	+168.04%
2025	+14.44%	-39.64%
2024	-43.98%	-27.05%
2023	+65.84%	-21.25%
2022	+3.37%	+24.94%
2021	+160.70%	+6.53%
2020	+18.76%	+58.31%
2019	+35.47%	+29.82%
2018	-39.76%	+59.05%
2017	+102.83%	+11.85%
2016	+40.99%	+15.80%
2015	+1.57%	-13.12%
2014	+7.56%	+54.27%
2013	+78.10%	-6.28%
2012	-0.72%	-10.99%
2011	-63.26%	-6.09%
2010	+138.62%	+4.96%
2009	+131.15%	-11.76%
2008	-89.13%	-0.88%
2007	-22.30%	N/A
2006	+21.97%	N/A
2005	-39.54%	N/A
2004	-18.70%	N/A
2003	+76.16%	N/A
2002	-57.51%	N/A
2001	+48.91%	N/A
2000	-62.93%	N/A

ACLS vs IRDM Drawdown Comparison

The maximum drawdown for ACLS was -99.34%, occurring on Feb 25, 2009. Recovery took 5668 trading sessions.

The maximum drawdown for IRDM was -75.34%, occurring on Nov 20, 2025. This drawdown has not yet recovered.

The current ACLS drawdown is -10.16%. The current IRDM drawdown is -25.26%.

Rank	ACLS	IRDM
#1	-99.34% Jul 12, 2000 - Jan 23, 2023	-75.34% Apr 21, 2023 - Nov 20, 2025
#2	-78.84% Jul 31, 2023 - Apr 4, 2025	-52.81% Sep 29, 2009 - Oct 26, 2017
#3	-14.92% Mar 21, 2023 - May 17, 2023	-43.82% Feb 13, 2020 - Nov 17, 2020
#4	-9.26% Jul 17, 2023 - Jul 28, 2023	-41.07% Feb 8, 2021 - Jan 6, 2023
#5	-8.31% Jun 12, 2023 - Jun 30, 2023	-29.91% Dec 3, 2018 - Mar 15, 2019
#6	-7.34% Mar 1, 2023 - Mar 21, 2023	-27.24% Apr 23, 2019 - Feb 5, 2020
#7	-6.21% Feb 15, 2023 - Mar 1, 2023	-20.90% Oct 1, 2018 - Nov 26, 2018
#8	-5.64% Jun 30, 2023 - Jul 17, 2023	-17.72% Oct 27, 2017 - Jan 22, 2018
#9	-5.19% Jan 26, 2023 - Feb 1, 2023	-13.62% Jan 29, 2018 - May 23, 2018
#10	-2.55% Feb 2, 2023 - Feb 9, 2023	-10.08% Jun 14, 2018 - Jul 12, 2018
#11	-2.40% May 18, 2023 - May 25, 2023	-9.69% Feb 17, 2023 - Apr 20, 2023
#12	-2.12% May 26, 2023 - Jun 1, 2023	-8.61% Sep 4, 2008 - Mar 11, 2009
#13	-0.84% Feb 9, 2023 - Feb 13, 2023	-8.61% Jun 5, 2018 - Jun 13, 2018
#14	-0.67% Feb 13, 2023 - Feb 15, 2023	-7.67% Jan 13, 2023 - Feb 17, 2023
#15	-0.39% Jun 8, 2023 - Jun 12, 2023	-6.53% Sep 7, 2018 - Sep 27, 2018