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Side-by-side financial comparison of BIOLIFE SOLUTIONS INC (BLFS) and NATHANS FAMOUS, INC. (NATH). Click either name above to swap in a different company.

NATHANS FAMOUS, INC. is the larger business by last-quarter revenue ($34.3M vs $18.8M, roughly 1.8× BIOLIFE SOLUTIONS INC). BIOLIFE SOLUTIONS INC runs the higher net margin — 58.9% vs 9.0%, a 49.9% gap on every dollar of revenue. On growth, BIOLIFE SOLUTIONS INC posted the faster year-over-year revenue change (24.3% vs 8.9%). Over the past eight quarters, NATHANS FAMOUS, INC.'s revenue compounded faster (8.8% CAGR vs 1.0%).

Biolife Solutions Inc. develops, manufactures and distributes specialized biopreservation products and cold chain management solutions for the cell and gene therapy, biopharmaceutical and regenerative medicine industries. It offers cryopreservation media, automated thawing systems, and temperature monitoring tools, serving biotech firms, research institutions and clinical labs globally.

Nathan's Famous, Inc., is an American company that operates a chain of fast-food restaurants specializing in hot dogs. The original Nathan's restaurant stands at the corner of Surf and Stillwell avenues in the Coney Island neighborhood of Brooklyn, New York City. Its restaurants are primarily in the Northeastern United States. The company's headquarters are at One Jericho Plaza in Jericho, part of Oyster Bay, New York.

BLFS vs NATH — Head-to-Head

Bigger by revenue
NATH
NATH
1.8× larger
NATH
$34.3M
$18.8M
BLFS
Growing faster (revenue YoY)
BLFS
BLFS
+15.5% gap
BLFS
24.3%
8.9%
NATH
Higher net margin
BLFS
BLFS
49.9% more per $
BLFS
58.9%
9.0%
NATH
Faster 2-yr revenue CAGR
NATH
NATH
Annualised
NATH
8.8%
1.0%
BLFS

Income Statement — Q4 FY2025 vs Q3 FY2026

Metric
BLFS
BLFS
NATH
NATH
Revenue
$18.8M
$34.3M
Net Profit
$11.1M
$3.1M
Gross Margin
32.6%
Operating Margin
7.2%
14.9%
Net Margin
58.9%
9.0%
Revenue YoY
24.3%
8.9%
Net Profit YoY
-11.1%
-31.2%
EPS (diluted)
$0.23
$0.75

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
BLFS
BLFS
NATH
NATH
Q4 25
$18.8M
$34.3M
Q3 25
$28.1M
$45.7M
Q2 25
$25.4M
$47.0M
Q1 25
$23.9M
$30.8M
Q4 24
$15.1M
$31.5M
Q3 24
$21.4M
$41.1M
Q2 24
$19.7M
$44.8M
Q1 24
$18.4M
$29.0M
Net Profit
BLFS
BLFS
NATH
NATH
Q4 25
$11.1M
$3.1M
Q3 25
$621.0K
$5.2M
Q2 25
$-15.8M
$8.9M
Q1 25
$-448.0K
$4.2M
Q4 24
$12.5M
$4.5M
Q3 24
$-1.7M
$6.0M
Q2 24
$-20.7M
$9.3M
Q1 24
$-10.2M
$3.9M
Gross Margin
BLFS
BLFS
NATH
NATH
Q4 25
32.6%
Q3 25
29.1%
Q2 25
39.5%
Q1 25
38.7%
Q4 24
37.9%
Q3 24
36.7%
Q2 24
43.6%
Q1 24
43.3%
Operating Margin
BLFS
BLFS
NATH
NATH
Q4 25
7.2%
14.9%
Q3 25
-0.3%
16.4%
Q2 25
-65.5%
27.2%
Q1 25
-5.1%
20.7%
Q4 24
3.6%
21.4%
Q3 24
-2.0%
23.4%
Q2 24
-6.6%
30.7%
Q1 24
-17.9%
23.5%
Net Margin
BLFS
BLFS
NATH
NATH
Q4 25
58.9%
9.0%
Q3 25
2.2%
11.4%
Q2 25
-62.3%
19.0%
Q1 25
-1.9%
13.8%
Q4 24
82.5%
14.2%
Q3 24
-8.0%
14.7%
Q2 24
-105.1%
20.7%
Q1 24
-55.4%
13.5%
EPS (diluted)
BLFS
BLFS
NATH
NATH
Q4 25
$0.23
$0.75
Q3 25
$0.01
$1.26
Q2 25
$-0.33
$2.16
Q1 25
$-0.01
$1.03
Q4 24
$0.27
$1.10
Q3 24
$-0.04
$1.47
Q2 24
$-0.45
$2.27
Q1 24
$-0.22
$0.95

Balance Sheet & Financial Strength

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

Metric
BLFS
BLFS
NATH
NATH
Cash + ST InvestmentsLiquidity on hand
$33.0M
$24.5M
Total DebtLower is stronger
$5.0M
$48.7M
Stockholders' EquityBook value
$371.9M
$-15.3M
Total Assets
$405.9M
$50.9M
Debt / EquityLower = less leverage
0.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BLFS
BLFS
NATH
NATH
Q4 25
$33.0M
$24.5M
Q3 25
$29.5M
$32.2M
Q2 25
$31.9M
$26.9M
Q1 25
$66.9M
$27.8M
Q4 24
$91.5M
$23.7M
Q3 24
$24.0M
$31.2M
Q2 24
$22.0M
$26.0M
Q1 24
$29.7M
$21.0M
Total Debt
BLFS
BLFS
NATH
NATH
Q4 25
$5.0M
$48.7M
Q3 25
$7.5M
$49.3M
Q2 25
$10.1M
$49.9M
Q1 25
$12.9M
$50.5M
Q4 24
$15.9M
$51.1M
Q3 24
$20.1M
$59.6M
Q2 24
$21.1M
Q1 24
$24.3M
$59.6M
Stockholders' Equity
BLFS
BLFS
NATH
NATH
Q4 25
$371.9M
$-15.3M
Q3 25
$353.7M
$-5.9M
Q2 25
$347.2M
$-9.3M
Q1 25
$352.6M
$-16.5M
Q4 24
$348.9M
$-19.0M
Q3 24
$325.5M
$-21.3M
Q2 24
$321.4M
$-25.5M
Q1 24
$333.4M
$-32.9M
Total Assets
BLFS
BLFS
NATH
NATH
Q4 25
$405.9M
$50.9M
Q3 25
$392.1M
$62.9M
Q2 25
$387.2M
$63.4M
Q1 25
$395.1M
$53.5M
Q4 24
$399.5M
$48.7M
Q3 24
$381.7M
$57.7M
Q2 24
$375.0M
$58.5M
Q1 24
$401.6M
$48.9M
Debt / Equity
BLFS
BLFS
NATH
NATH
Q4 25
0.01×
Q3 25
0.02×
Q2 25
0.03×
Q1 25
0.04×
Q4 24
0.05×
Q3 24
0.06×
Q2 24
0.07×
Q1 24
0.07×

Cash Flow & Capital Efficiency

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

Metric
BLFS
BLFS
NATH
NATH
Operating Cash FlowLast quarter
$4.9M
$5.8M
Free Cash FlowOCF − Capex
$5.7M
FCF MarginFCF / Revenue
16.6%
Capex IntensityCapex / Revenue
0.2%
Cash ConversionOCF / Net Profit
0.44×
1.87×
TTM Free Cash FlowTrailing 4 quarters
$22.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BLFS
BLFS
NATH
NATH
Q4 25
$4.9M
$5.8M
Q3 25
$6.1M
$10.2M
Q2 25
$7.4M
$-220.0K
Q1 25
$1.7M
$6.8M
Q4 24
$1.6M
$3.6M
Q3 24
$4.8M
$9.8M
Q2 24
$6.5M
$5.0M
Q1 24
$-4.5M
$6.4M
Free Cash Flow
BLFS
BLFS
NATH
NATH
Q4 25
$5.7M
Q3 25
$10.0M
Q2 25
$-335.0K
Q1 25
$6.7M
Q4 24
$3.6M
Q3 24
$9.7M
Q2 24
$5.0M
Q1 24
$6.3M
FCF Margin
BLFS
BLFS
NATH
NATH
Q4 25
16.6%
Q3 25
21.9%
Q2 25
-0.7%
Q1 25
21.9%
Q4 24
11.4%
Q3 24
23.7%
Q2 24
11.1%
Q1 24
21.9%
Capex Intensity
BLFS
BLFS
NATH
NATH
Q4 25
0.2%
Q3 25
0.4%
Q2 25
0.2%
Q1 25
0.2%
Q4 24
0.1%
Q3 24
0.2%
Q2 24
0.1%
Q1 24
0.2%
Cash Conversion
BLFS
BLFS
NATH
NATH
Q4 25
0.44×
1.87×
Q3 25
9.83×
1.95×
Q2 25
-0.02×
Q1 25
1.60×
Q4 24
0.13×
0.81×
Q3 24
1.63×
Q2 24
0.54×
Q1 24
1.64×

Financial Flow Comparison

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

Revenue Breakdown by Segment

BLFS
BLFS

Segment breakdown not available.

NATH
NATH

Branded Product Program$23.7M69%
Product Licensing$7.4M22%
Company Operated Restaurants$1.6M5%
Franchise Fees And Royalties$1.0M3%

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