ACLS vs FLY
Comparison between Axcelis Technologies Inc (ACLS, Company) and Firefly Aerospace Inc (FLY, Company).
ACLS is from the Technology sector, while FLY is from the Industrials sector.
ACLS vs FLY - Performance Comparison
Key Characteristics
Financial metrics and valuation ratios
Market Cap
Winner
ACLS
$4.16B
FLY
$4.14B
Max Drawdown
ACLS
99.34%
Winner
FLY
72.20%
Sharpe Ratio
Winner
ACLS
1.29
FLY
-0.35
5Y Beta
Winner
ACLS
1.94
FLY
3.15
Industry
ACLS
Semiconductor Equipment & Materials
FLY
Aerospace & Defense
P/E Ratio
ACLS
41.63
Winner
FLY
-13.82
Forward P/E
ACLS
35.84
FLY
N/A
PEG Ratio
ACLS
1.45
FLY
N/A
5Y EPS CAGR
ACLS
14.60%
FLY
N/A
Debt to Equity
Winner
ACLS
0.00%
FLY
0.64%
Free Cash Flow Yield
Winner
ACLS
2.13%
FLY
-6.81%
P/S Ratio
Winner
ACLS
4.78
FLY
22.99
P/B Ratio
Winner
ACLS
4.25
FLY
4.29
ACLS vs FLY - Historical Returns
Returns include dividend reinvestment.
1M
Winner
ACLS
-8.94%
FLY
-27.92%
3M
Winner
ACLS
+29.88%
FLY
-35.83%
6M
Winner
ACLS
+53.97%
FLY
-19.99%
1Y
Winner
ACLS
+89.49%
FLY
-60.08%
5Y(CAGR)
ACLS
+30.42%
FLY
N/A
10Y(CAGR)
ACLS
+29.68%
FLY
N/A
Max(CAGR)
Winner
ACLS
+1.56%
FLY
-63.04%
ACLS vs FLY - Annual Returns (2000 - 2026)
Returns include dividend reinvestment.
| Year | ACLS | FLY |
|---|---|---|
| 2026 | +66.45% | +1.39% |
| 2025 | +14.44% | -62.93% |
| 2024 | -43.98% | N/A |
| 2023 | +65.84% | N/A |
| 2022 | +3.37% | N/A |
| 2021 | +160.70% | N/A |
| 2020 | +18.76% | N/A |
| 2019 | +35.47% | N/A |
| 2018 | -39.76% | N/A |
| 2017 | +102.83% | N/A |
| 2016 | +40.99% | N/A |
| 2015 | +1.57% | N/A |
| 2014 | +7.56% | N/A |
| 2013 | +78.10% | N/A |
| 2012 | -0.72% | N/A |
| 2011 | -63.26% | N/A |
| 2010 | +138.62% | N/A |
| 2009 | +131.15% | N/A |
| 2008 | -89.13% | N/A |
| 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 FLY Drawdown Comparison
The maximum drawdown for ACLS was -99.34%, occurring on Feb 25, 2009. Recovery took 5668 trading sessions.
The maximum drawdown for FLY was -72.20%, occurring on Nov 21, 2025. This drawdown has not yet recovered.
The current ACLS drawdown is -28.50%. The current FLY drawdown is -60.08%.
| Rank | ACLS | FLY |
|---|---|---|
| #1 | -99.34% Jul 12, 2000 - Jan 23, 2023 | -72.20% Aug 7, 2025 - Nov 21, 2025 |
| #2 | -78.84% Jul 31, 2023 - Apr 4, 2025 | N/A |
| #3 | -14.92% Mar 21, 2023 - May 17, 2023 | N/A |
| #4 | -9.26% Jul 17, 2023 - Jul 28, 2023 | N/A |
| #5 | -8.31% Jun 12, 2023 - Jun 30, 2023 | N/A |
| #6 | -7.34% Mar 1, 2023 - Mar 21, 2023 | N/A |
| #7 | -6.21% Feb 15, 2023 - Mar 1, 2023 | N/A |
| #8 | -5.64% Jun 30, 2023 - Jul 17, 2023 | N/A |
| #9 | -5.19% Jan 26, 2023 - Feb 1, 2023 | N/A |
| #10 | -2.55% Feb 2, 2023 - Feb 9, 2023 | N/A |
| #11 | -2.40% May 18, 2023 - May 25, 2023 | N/A |
| #12 | -2.12% May 26, 2023 - Jun 1, 2023 | N/A |
| #13 | -0.84% Feb 9, 2023 - Feb 13, 2023 | N/A |
| #14 | -0.67% Feb 13, 2023 - Feb 15, 2023 | N/A |
| #15 | -0.39% Jun 8, 2023 - Jun 12, 2023 | N/A |
Correlation
Correlation between ACLS and FLY is 0.33 which considered as a weak positive correlation - the stocks show a slight tendency to move together.
0.33
-101
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