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Side-by-side financial comparison of Firefly Aerospace Inc. (FLY) and Phathom Pharmaceuticals, Inc. (PHAT). Click either name above to swap in a different company.

Phathom Pharmaceuticals, Inc. is the larger business by last-quarter revenue ($57.6M vs $30.8M, roughly 1.9× Firefly Aerospace Inc.). On growth, Phathom Pharmaceuticals, Inc. posted the faster year-over-year revenue change (94.1% vs 37.6%). Firefly Aerospace Inc. produced more free cash flow last quarter ($-62.0M vs $-167.0M).

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.

Phathom Pharmaceuticals is a clinical-stage biopharmaceutical firm focused on developing and commercializing innovative therapies for gastrointestinal diseases. Its lead product candidates address acid-related disorders, inflammatory bowel disease, and other GI conditions, serving patients mainly across North America and Europe.

FLY vs PHAT — Head-to-Head

Bigger by revenue
PHAT
PHAT
1.9× larger
PHAT
$57.6M
$30.8M
FLY
Growing faster (revenue YoY)
PHAT
PHAT
+56.5% gap
PHAT
94.1%
37.6%
FLY
More free cash flow
FLY
FLY
$105.0M more FCF
FLY
$-62.0M
$-167.0M
PHAT

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
FLY
FLY
PHAT
PHAT
Revenue
$30.8M
$57.6M
Net Profit
$-133.4M
Gross Margin
27.6%
86.7%
Operating Margin
-202.1%
Net Margin
-433.5%
Revenue YoY
37.6%
94.1%
Net Profit YoY
-227.1%
71.6%
EPS (diluted)
$-1.50

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
PHAT
PHAT
Q4 25
$57.6M
Q3 25
$30.8M
$49.5M
Q2 25
$15.5M
$39.5M
Q1 25
$28.5M
Q4 24
$29.7M
Q3 24
$22.4M
$16.4M
Q2 24
$21.1M
$7.3M
Net Profit
FLY
FLY
PHAT
PHAT
Q4 25
Q3 25
$-133.4M
$-30.0M
Q2 25
$-63.8M
$-75.8M
Q1 25
$-94.3M
Q4 24
Q3 24
$-40.8M
$-85.6M
Q2 24
$-53.5M
$-91.4M
Gross Margin
FLY
FLY
PHAT
PHAT
Q4 25
86.7%
Q3 25
27.6%
87.5%
Q2 25
25.7%
87.2%
Q1 25
86.9%
Q4 24
87.1%
Q3 24
34.7%
85.6%
Q2 24
14.0%
81.2%
Operating Margin
FLY
FLY
PHAT
PHAT
Q4 25
Q3 25
-202.1%
-30.8%
Q2 25
-349.5%
-151.7%
Q1 25
-276.5%
Q4 24
Q3 24
-152.9%
-433.0%
Q2 24
-232.1%
-1055.4%
Net Margin
FLY
FLY
PHAT
PHAT
Q4 25
Q3 25
-433.5%
-60.5%
Q2 25
-410.2%
-191.9%
Q1 25
-330.7%
Q4 24
Q3 24
-182.3%
-523.3%
Q2 24
-253.7%
-1248.6%
EPS (diluted)
FLY
FLY
PHAT
PHAT
Q4 25
Q3 25
$-1.50
$-0.41
Q2 25
$-5.78
$-1.05
Q1 25
$-1.31
Q4 24
Q3 24
$-3.57
$-1.32
Q2 24
$-4.60
$-1.56

Balance Sheet & Financial Strength

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

Metric
FLY
FLY
PHAT
PHAT
Cash + ST InvestmentsLiquidity on hand
$995.2M
$130.0M
Total DebtLower is stronger
$209.1M
Stockholders' EquityBook value
$948.8M
$-438.2M
Total Assets
$1.3B
$259.1M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FLY
FLY
PHAT
PHAT
Q4 25
$130.0M
Q3 25
$995.2M
$135.2M
Q2 25
$205.3M
$149.6M
Q1 25
$212.3M
Q4 24
$297.3M
Q3 24
$26.4M
$334.7M
Q2 24
$21.9M
$276.2M
Total Debt
FLY
FLY
PHAT
PHAT
Q4 25
$209.1M
Q3 25
$207.1M
Q2 25
$136.1M
$205.1M
Q1 25
$203.2M
Q4 24
$201.4M
Q3 24
$175.7M
Q2 24
$174.4M
Stockholders' Equity
FLY
FLY
PHAT
PHAT
Q4 25
$-438.2M
Q3 25
$948.8M
$-422.5M
Q2 25
$-918.0M
$-405.8M
Q1 25
$-338.4M
Q4 24
$-253.6M
Q3 24
$-665.5M
$-187.1M
Q2 24
$-620.0M
$-233.8M
Total Assets
FLY
FLY
PHAT
PHAT
Q4 25
$259.1M
Q3 25
$1.3B
$240.3M
Q2 25
$466.8M
$250.2M
Q1 25
$294.2M
Q4 24
$378.3M
Q3 24
$387.0M
Q2 24
$319.4M

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
PHAT
PHAT
Operating Cash FlowLast quarter
$-53.0M
$-166.8M
Free Cash FlowOCF − Capex
$-62.0M
$-167.0M
FCF MarginFCF / Revenue
-201.3%
-290.0%
Capex IntensityCapex / Revenue
29.0%
0.4%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-328.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FLY
FLY
PHAT
PHAT
Q4 25
$-166.8M
Q3 25
$-53.0M
$-14.1M
Q2 25
$-62.7M
Q1 25
$-84.9M
Q4 24
$-266.8M
Q3 24
$-63.6M
Q2 24
$-70.7M
Free Cash Flow
FLY
FLY
PHAT
PHAT
Q4 25
$-167.0M
Q3 25
$-62.0M
$-14.1M
Q2 25
$-62.8M
Q1 25
$-84.9M
Q4 24
$-266.9M
Q3 24
$-63.6M
Q2 24
$-70.8M
FCF Margin
FLY
FLY
PHAT
PHAT
Q4 25
-290.0%
Q3 25
-201.3%
-28.6%
Q2 25
-159.0%
Q1 25
-297.9%
Q4 24
-899.8%
Q3 24
-389.0%
Q2 24
-966.2%
Capex Intensity
FLY
FLY
PHAT
PHAT
Q4 25
0.4%
Q3 25
29.0%
0.1%
Q2 25
0.2%
Q1 25
0.1%
Q4 24
0.5%
Q3 24
0.3%
Q2 24
0.6%

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%

PHAT
PHAT

Segment breakdown not available.

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