vs

Side-by-side financial comparison of Firefly Aerospace Inc. (FLY) and NAPCO SECURITY TECHNOLOGIES, INC (NSSC). Click either name above to swap in a different company.

NAPCO SECURITY TECHNOLOGIES, INC is the larger business by last-quarter revenue ($48.2M vs $30.8M, roughly 1.6× Firefly Aerospace Inc.). NAPCO SECURITY TECHNOLOGIES, INC runs the higher net margin — 28.0% vs -433.5%, a 461.5% gap on every dollar of revenue. On growth, Firefly Aerospace Inc. posted the faster year-over-year revenue change (37.6% vs 12.2%). NAPCO SECURITY TECHNOLOGIES, INC produced more free cash flow last quarter ($14.5M vs $-62.0M).

Firefly Aerospace, Inc. (Firefly) is an American aerospace firm based in Cedar Park, Texas. Firefly develops small- and medium-lift launch vehicles for commercial launches to orbit. Firefly's stated purpose is to increase access to space, similar to other private spaceflight companies.

Napco Security Technologies, Inc. was set up in 1969 and now is based in Amityville, New York. The company focuses on security products, such as electronic locking devices, alarm systems, and building access control systems. The company was formerly known as Napco Security Systems, Inc.

FLY vs NSSC — Head-to-Head

Bigger by revenue
NSSC
NSSC
1.6× larger
NSSC
$48.2M
$30.8M
FLY
Growing faster (revenue YoY)
FLY
FLY
+25.4% gap
FLY
37.6%
12.2%
NSSC
Higher net margin
NSSC
NSSC
461.5% more per $
NSSC
28.0%
-433.5%
FLY
More free cash flow
NSSC
NSSC
$76.5M more FCF
NSSC
$14.5M
$-62.0M
FLY

Income Statement — Q3 FY2025 vs Q2 FY2026

Metric
FLY
FLY
NSSC
NSSC
Revenue
$30.8M
$48.2M
Net Profit
$-133.4M
$13.5M
Gross Margin
27.6%
58.6%
Operating Margin
-202.1%
30.6%
Net Margin
-433.5%
28.0%
Revenue YoY
37.6%
12.2%
Net Profit YoY
-227.1%
29.0%
EPS (diluted)
$-1.50
$0.38

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
FLY
FLY
NSSC
NSSC
Q4 25
$48.2M
Q3 25
$30.8M
$49.2M
Q2 25
$15.5M
$50.7M
Q1 25
$44.0M
Q4 24
$42.9M
Q3 24
$22.4M
$44.0M
Q2 24
$21.1M
$50.3M
Q1 24
$49.3M
Net Profit
FLY
FLY
NSSC
NSSC
Q4 25
$13.5M
Q3 25
$-133.4M
$12.2M
Q2 25
$-63.8M
$11.6M
Q1 25
$10.1M
Q4 24
$10.5M
Q3 24
$-40.8M
$11.2M
Q2 24
$-53.5M
$13.5M
Q1 24
$13.2M
Gross Margin
FLY
FLY
NSSC
NSSC
Q4 25
58.6%
Q3 25
27.6%
56.6%
Q2 25
25.7%
52.8%
Q1 25
57.2%
Q4 24
57.0%
Q3 24
34.7%
55.9%
Q2 24
14.0%
55.3%
Q1 24
53.8%
Operating Margin
FLY
FLY
NSSC
NSSC
Q4 25
30.6%
Q3 25
-202.1%
27.7%
Q2 25
-349.5%
23.8%
Q1 25
25.4%
Q4 24
26.0%
Q3 24
-152.9%
26.9%
Q2 24
-232.1%
27.7%
Q1 24
29.4%
Net Margin
FLY
FLY
NSSC
NSSC
Q4 25
28.0%
Q3 25
-433.5%
24.7%
Q2 25
-410.2%
22.9%
Q1 25
23.0%
Q4 24
24.4%
Q3 24
-182.3%
25.4%
Q2 24
-253.7%
26.9%
Q1 24
26.8%
EPS (diluted)
FLY
FLY
NSSC
NSSC
Q4 25
$0.38
Q3 25
$-1.50
$0.34
Q2 25
$-5.78
$0.33
Q1 25
$0.28
Q4 24
$0.28
Q3 24
$-3.57
$0.30
Q2 24
$-4.60
$0.36
Q1 24
$0.36

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
FLY
FLY
NSSC
NSSC
Cash + ST InvestmentsLiquidity on hand
$995.2M
$115.4M
Total DebtLower is stronger
Stockholders' EquityBook value
$948.8M
$184.8M
Total Assets
$1.3B
$212.8M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FLY
FLY
NSSC
NSSC
Q4 25
$115.4M
Q3 25
$995.2M
$105.8M
Q2 25
$205.3M
$99.2M
Q1 25
$89.3M
Q4 24
$99.2M
Q3 24
$26.4M
$91.3M
Q2 24
$21.9M
$70.7M
Q1 24
$60.9M
Total Debt
FLY
FLY
NSSC
NSSC
Q4 25
Q3 25
Q2 25
$136.1M
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
Stockholders' Equity
FLY
FLY
NSSC
NSSC
Q4 25
$184.8M
Q3 25
$948.8M
$176.1M
Q2 25
$-918.0M
$168.6M
Q1 25
$161.5M
Q4 24
$174.2M
Q3 24
$-665.5M
$178.6M
Q2 24
$-620.0M
$178.9M
Q1 24
$168.2M
Total Assets
FLY
FLY
NSSC
NSSC
Q4 25
$212.8M
Q3 25
$1.3B
$206.0M
Q2 25
$466.8M
$198.1M
Q1 25
$190.9M
Q4 24
$202.7M
Q3 24
$209.9M
Q2 24
$207.8M
Q1 24
$194.8M

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
FLY
FLY
NSSC
NSSC
Operating Cash FlowLast quarter
$-53.0M
$15.1M
Free Cash FlowOCF − Capex
$-62.0M
$14.5M
FCF MarginFCF / Revenue
-201.3%
30.1%
Capex IntensityCapex / Revenue
29.0%
1.2%
Cash ConversionOCF / Net Profit
1.12×
TTM Free Cash FlowTrailing 4 quarters
$53.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FLY
FLY
NSSC
NSSC
Q4 25
$15.1M
Q3 25
$-53.0M
$11.6M
Q2 25
$14.6M
Q1 25
$13.4M
Q4 24
$13.5M
Q3 24
$12.0M
Q2 24
$14.3M
Q1 24
$12.3M
Free Cash Flow
FLY
FLY
NSSC
NSSC
Q4 25
$14.5M
Q3 25
$-62.0M
$11.4M
Q2 25
$14.4M
Q1 25
$13.3M
Q4 24
$12.4M
Q3 24
$11.3M
Q2 24
$13.8M
Q1 24
$12.0M
FCF Margin
FLY
FLY
NSSC
NSSC
Q4 25
30.1%
Q3 25
-201.3%
23.3%
Q2 25
28.4%
Q1 25
30.3%
Q4 24
28.8%
Q3 24
25.8%
Q2 24
27.4%
Q1 24
24.3%
Capex Intensity
FLY
FLY
NSSC
NSSC
Q4 25
1.2%
Q3 25
29.0%
0.4%
Q2 25
0.5%
Q1 25
0.1%
Q4 24
2.6%
Q3 24
1.5%
Q2 24
1.1%
Q1 24
0.7%
Cash Conversion
FLY
FLY
NSSC
NSSC
Q4 25
1.12×
Q3 25
0.96×
Q2 25
1.26×
Q1 25
1.32×
Q4 24
1.29×
Q3 24
1.08×
Q2 24
1.06×
Q1 24
0.94×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

FLY
FLY

Spacecraft Solutions Revenue$21.4M69%
Launch Revenue$9.4M31%

NSSC
NSSC

Segment breakdown not available.

Related Comparisons