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Side-by-side financial comparison of GERON CORP (GERN) and SURF AIR MOBILITY INC. (SRFM). Click either name above to swap in a different company.

GERON CORP is the larger business by last-quarter revenue ($47.2M vs $26.4M, roughly 1.8× SURF AIR MOBILITY INC.). GERON CORP runs the higher net margin — -39.0% vs -139.4%, a 100.4% gap on every dollar of revenue. On growth, GERON CORP posted the faster year-over-year revenue change (67.1% vs -5.7%). Over the past eight quarters, GERON CORP's revenue compounded faster (1597.0% CAGR vs -7.1%).

Geron Corporation is a biotechnology company located in Foster City, California which specializes in developing and commercializing therapeutic products for cancer that inhibit telomerase.

Surf Air Mobility Inc. is an American aviation company focused on regional flying. The company plans to develop electric and hybrid powertrains to upgrade existing aircraft. Surf Air Mobility is also developing AI-enabled SurfOS operating system for the regional air mobility industry. Surf Air Mobility is the parent company of Surf Air, Surf On Demand, and two airlines, Mokulele Airlines and Southern Airways Express.

GERN vs SRFM — Head-to-Head

Bigger by revenue
GERN
GERN
1.8× larger
GERN
$47.2M
$26.4M
SRFM
Growing faster (revenue YoY)
GERN
GERN
+72.8% gap
GERN
67.1%
-5.7%
SRFM
Higher net margin
GERN
GERN
100.4% more per $
GERN
-39.0%
-139.4%
SRFM
Faster 2-yr revenue CAGR
GERN
GERN
Annualised
GERN
1597.0%
-7.1%
SRFM

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
GERN
GERN
SRFM
SRFM
Revenue
$47.2M
$26.4M
Net Profit
$-18.4M
$-36.9M
Gross Margin
Operating Margin
-29.4%
-97.8%
Net Margin
-39.0%
-139.4%
Revenue YoY
67.1%
-5.7%
Net Profit YoY
30.3%
-3015.3%
EPS (diluted)
$-0.03
$-0.08

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
GERN
GERN
SRFM
SRFM
Q4 25
$26.4M
Q3 25
$47.2M
$29.2M
Q2 25
$49.0M
$27.4M
Q1 25
$39.6M
$23.5M
Q4 24
$28.0M
Q3 24
$28.3M
$28.4M
Q2 24
$882.0K
$32.4M
Q1 24
$304.0K
$30.6M
Net Profit
GERN
GERN
SRFM
SRFM
Q4 25
$-36.9M
Q3 25
$-18.4M
$-27.2M
Q2 25
$-16.4M
$-28.0M
Q1 25
$-19.8M
$-18.5M
Q4 24
$1.3M
Q3 24
$-26.4M
$-12.2M
Q2 24
$-67.4M
$-27.0M
Q1 24
$-55.4M
$-37.0M
Operating Margin
GERN
GERN
SRFM
SRFM
Q4 25
-97.8%
Q3 25
-29.4%
-56.6%
Q2 25
-25.4%
-58.1%
Q1 25
-42.2%
-79.0%
Q4 24
28.9%
Q3 24
-99.8%
-30.4%
Q2 24
-7860.9%
-78.0%
Q1 24
-18465.1%
-112.6%
Net Margin
GERN
GERN
SRFM
SRFM
Q4 25
-139.4%
Q3 25
-39.0%
-93.3%
Q2 25
-33.4%
-102.1%
Q1 25
-50.1%
-78.6%
Q4 24
4.5%
Q3 24
-93.5%
-43.1%
Q2 24
-7639.8%
-83.4%
Q1 24
-18220.4%
-120.7%
EPS (diluted)
GERN
GERN
SRFM
SRFM
Q4 25
$-0.08
Q3 25
$-0.03
$-0.64
Q2 25
$-0.02
$-1.34
Q1 25
$-0.03
$-1.09
Q4 24
$0.80
Q3 24
$-0.04
$-0.94
Q2 24
$-0.10
$-2.31
Q1 24
$-0.09
$-3.35

Balance Sheet & Financial Strength

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

Metric
GERN
GERN
SRFM
SRFM
Cash + ST InvestmentsLiquidity on hand
$78.1M
$12.7M
Total DebtLower is stronger
$17.1M
Stockholders' EquityBook value
$248.7M
$-54.9M
Total Assets
$567.4M
$131.7M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
GERN
GERN
SRFM
SRFM
Q4 25
$12.7M
Q3 25
$78.1M
$7.1M
Q2 25
$77.7M
$22.6M
Q1 25
$83.7M
$6.6M
Q4 24
$21.1M
Q3 24
$60.3M
$506.0K
Q2 24
$116.9M
$1.5M
Q1 24
$189.8M
$1.3M
Total Debt
GERN
GERN
SRFM
SRFM
Q4 25
$17.1M
Q3 25
$63.8M
Q2 25
$63.3M
Q1 25
$62.9M
Q4 24
$62.4M
Q3 24
$22.5M
Q2 24
$23.3M
Q1 24
$25.1M
Stockholders' Equity
GERN
GERN
SRFM
SRFM
Q4 25
$-54.9M
Q3 25
$248.7M
$-92.6M
Q2 25
$259.5M
$-115.5M
Q1 25
$268.2M
$-135.6M
Q4 24
$-120.0M
Q3 24
$292.3M
$-135.6M
Q2 24
$306.7M
$-128.1M
Q1 24
$344.9M
$-106.3M
Total Assets
GERN
GERN
SRFM
SRFM
Q4 25
$131.7M
Q3 25
$567.4M
$106.8M
Q2 25
$555.2M
$129.0M
Q1 25
$562.5M
$105.3M
Q4 24
$124.1M
Q3 24
$444.9M
$97.9M
Q2 24
$449.4M
$105.5M
Q1 24
$482.1M
$108.8M

Cash Flow & Capital Efficiency

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

Metric
GERN
GERN
SRFM
SRFM
Operating Cash FlowLast quarter
$-13.6M
$-18.4M
Free Cash FlowOCF − Capex
$-20.1M
FCF MarginFCF / Revenue
-76.0%
Capex IntensityCapex / Revenue
6.5%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-70.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
GERN
GERN
SRFM
SRFM
Q4 25
$-18.4M
Q3 25
$-13.6M
$-19.3M
Q2 25
$-27.4M
$-10.6M
Q1 25
$-48.0M
$-15.8M
Q4 24
$-23.6M
Q3 24
$-58.9M
$-12.3M
Q2 24
$-53.5M
$-5.6M
Q1 24
$-62.3M
$-12.8M
Free Cash Flow
GERN
GERN
SRFM
SRFM
Q4 25
$-20.1M
Q3 25
$-21.1M
Q2 25
$-11.9M
Q1 25
$-17.1M
Q4 24
$-32.7M
Q3 24
$-13.6M
Q2 24
$-53.7M
$-6.3M
Q1 24
$-62.9M
$-13.5M
FCF Margin
GERN
GERN
SRFM
SRFM
Q4 25
-76.0%
Q3 25
-72.2%
Q2 25
-43.2%
Q1 25
-72.6%
Q4 24
-116.5%
Q3 24
-47.8%
Q2 24
-6086.6%
-19.5%
Q1 24
-20680.3%
-44.2%
Capex Intensity
GERN
GERN
SRFM
SRFM
Q4 25
6.5%
Q3 25
5.9%
Q2 25
4.4%
Q1 25
5.4%
Q4 24
32.4%
Q3 24
0.0%
4.4%
Q2 24
23.4%
2.2%
Q1 24
202.3%
2.3%
Cash Conversion
GERN
GERN
SRFM
SRFM
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
-18.64×
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

GERN
GERN

Segment breakdown not available.

SRFM
SRFM

Scheduled$17.2M65%
On Demand$9.2M35%

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