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Side-by-side financial comparison of Firefly Aerospace Inc. (FLY) and NATURAL ALTERNATIVES INTERNATIONAL INC (NAII). Click either name above to swap in a different company.

NATURAL ALTERNATIVES INTERNATIONAL INC is the larger business by last-quarter revenue ($34.8M vs $30.8M, roughly 1.1× Firefly Aerospace Inc.). NATURAL ALTERNATIVES INTERNATIONAL INC runs the higher net margin — -7.3% vs -433.5%, a 426.1% gap on every dollar of revenue. On growth, Firefly Aerospace Inc. posted the faster year-over-year revenue change (37.6% vs 2.1%). NATURAL ALTERNATIVES INTERNATIONAL INC produced more free cash flow last quarter ($-7.3M 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.

Natural Alternatives International, Inc. (NAI) is an American company based in Carlsbad, California which manufactures nutritional supplements such as Juice Plus. NAI was founded in 1980 by Mark A. LeDoux, and had 241 employees in 2007. NAI's manufacturing facilities are located in Vista, California, Switzerland and Japan.

FLY vs NAII — Head-to-Head

Bigger by revenue
NAII
NAII
1.1× larger
NAII
$34.8M
$30.8M
FLY
Growing faster (revenue YoY)
FLY
FLY
+35.5% gap
FLY
37.6%
2.1%
NAII
Higher net margin
NAII
NAII
426.1% more per $
NAII
-7.3%
-433.5%
FLY
More free cash flow
NAII
NAII
$54.7M more FCF
NAII
$-7.3M
$-62.0M
FLY

Income Statement — Q3 FY2025 vs Q2 FY2026

Metric
FLY
FLY
NAII
NAII
Revenue
$30.8M
$34.8M
Net Profit
$-133.4M
$-2.6M
Gross Margin
27.6%
7.2%
Operating Margin
-202.1%
-5.3%
Net Margin
-433.5%
-7.3%
Revenue YoY
37.6%
2.1%
Net Profit YoY
-227.1%
-16.5%
EPS (diluted)
$-1.50
$-0.42

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
NAII
NAII
Q4 25
$34.8M
Q3 25
$30.8M
$37.7M
Q2 25
$15.5M
$33.9M
Q1 25
$28.8M
Q4 24
$34.1M
Q3 24
$22.4M
$33.1M
Q2 24
$21.1M
$29.5M
Q1 24
$25.1M
Net Profit
FLY
FLY
NAII
NAII
Q4 25
$-2.6M
Q3 25
$-133.4M
$-291.0K
Q2 25
$-63.8M
$-7.2M
Q1 25
$-2.2M
Q4 24
$-2.2M
Q3 24
$-40.8M
$-2.0M
Q2 24
$-53.5M
$-1.9M
Q1 24
$-1.6M
Gross Margin
FLY
FLY
NAII
NAII
Q4 25
7.2%
Q3 25
27.6%
11.7%
Q2 25
25.7%
10.4%
Q1 25
6.3%
Q4 24
4.9%
Q3 24
34.7%
6.8%
Q2 24
14.0%
4.8%
Q1 24
7.6%
Operating Margin
FLY
FLY
NAII
NAII
Q4 25
-5.3%
Q3 25
-202.1%
0.8%
Q2 25
-349.5%
-5.7%
Q1 25
-7.3%
Q4 24
-8.2%
Q3 24
-152.9%
-5.5%
Q2 24
-232.1%
-8.6%
Q1 24
-7.8%
Net Margin
FLY
FLY
NAII
NAII
Q4 25
-7.3%
Q3 25
-433.5%
-0.8%
Q2 25
-410.2%
-21.3%
Q1 25
-7.6%
Q4 24
-6.4%
Q3 24
-182.3%
-6.0%
Q2 24
-253.7%
-6.4%
Q1 24
-6.3%
EPS (diluted)
FLY
FLY
NAII
NAII
Q4 25
$-0.42
Q3 25
$-1.50
$-0.05
Q2 25
$-5.78
$-1.21
Q1 25
$-0.37
Q4 24
$-0.37
Q3 24
$-3.57
$-0.33
Q2 24
$-4.60
$-0.32
Q1 24
$-0.27

Balance Sheet & Financial Strength

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

Metric
FLY
FLY
NAII
NAII
Cash + ST InvestmentsLiquidity on hand
$995.2M
$3.8M
Total DebtLower is stronger
Stockholders' EquityBook value
$948.8M
$67.0M
Total Assets
$1.3B
$153.3M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FLY
FLY
NAII
NAII
Q4 25
$3.8M
Q3 25
$995.2M
$7.7M
Q2 25
$205.3M
$12.3M
Q1 25
$10.6M
Q4 24
$8.7M
Q3 24
$26.4M
$10.2M
Q2 24
$21.9M
$12.0M
Q1 24
$12.4M
Total Debt
FLY
FLY
NAII
NAII
Q4 25
Q3 25
Q2 25
$136.1M
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
Stockholders' Equity
FLY
FLY
NAII
NAII
Q4 25
$67.0M
Q3 25
$948.8M
$69.0M
Q2 25
$-918.0M
$68.4M
Q1 25
$76.6M
Q4 24
$79.1M
Q3 24
$-665.5M
$80.2M
Q2 24
$-620.0M
$82.6M
Q1 24
$84.1M
Total Assets
FLY
FLY
NAII
NAII
Q4 25
$153.3M
Q3 25
$1.3B
$156.9M
Q2 25
$466.8M
$151.9M
Q1 25
$154.9M
Q4 24
$156.1M
Q3 24
$161.3M
Q2 24
$162.3M
Q1 24
$153.2M

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
NAII
NAII
Operating Cash FlowLast quarter
$-53.0M
$-6.3M
Free Cash FlowOCF − Capex
$-62.0M
$-7.3M
FCF MarginFCF / Revenue
-201.3%
-20.9%
Capex IntensityCapex / Revenue
29.0%
2.7%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-5.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FLY
FLY
NAII
NAII
Q4 25
$-6.3M
Q3 25
$-53.0M
$-4.0M
Q2 25
$3.3M
Q1 25
$6.0M
Q4 24
$37.0K
Q3 24
$-3.4M
Q2 24
$-2.7M
Q1 24
$-3.6M
Free Cash Flow
FLY
FLY
NAII
NAII
Q4 25
$-7.3M
Q3 25
$-62.0M
$-5.1M
Q2 25
$1.9M
Q1 25
$5.2M
Q4 24
$-1.0M
Q3 24
$-3.7M
Q2 24
$-3.8M
Q1 24
$-3.9M
FCF Margin
FLY
FLY
NAII
NAII
Q4 25
-20.9%
Q3 25
-201.3%
-13.4%
Q2 25
5.6%
Q1 25
18.0%
Q4 24
-3.0%
Q3 24
-11.3%
Q2 24
-12.7%
Q1 24
-15.5%
Capex Intensity
FLY
FLY
NAII
NAII
Q4 25
2.7%
Q3 25
29.0%
2.7%
Q2 25
4.3%
Q1 25
2.8%
Q4 24
3.1%
Q3 24
0.9%
Q2 24
3.5%
Q1 24
1.1%

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%

NAII
NAII

Private Label Contract Manufacturing$32.8M94%
Patent And Trademark Licensing$2.0M6%

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