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Side-by-side financial comparison of FONAR CORP (FONR) and RBB Bancorp (RBB). Click either name above to swap in a different company.

RBB Bancorp is the larger business by last-quarter revenue ($32.3M vs $25.5M, roughly 1.3× FONAR CORP). RBB Bancorp runs the higher net margin — 31.5% vs 8.0%, a 23.4% gap on every dollar of revenue. On growth, RBB Bancorp posted the faster year-over-year revenue change (12.6% vs 2.4%). RBB Bancorp produced more free cash flow last quarter ($42.6M vs $-227.0K). Over the past eight quarters, RBB Bancorp's revenue compounded faster (7.0% CAGR vs -0.3%).

FONAR Corp is a specialized medical technology firm that designs, manufactures, and distributes innovative MRI systems including upright and open models. It primarily serves U.S. hospitals, diagnostic imaging centers, and healthcare providers, delivering high-precision scanning solutions for clinical diagnostic use.

RBB Bancorp is a US-based financial holding company that operates Royal Business Bank as its primary banking subsidiary. It caters mainly to Asian American communities, small and medium-sized enterprises, real estate investors, and retail clients, offering comprehensive commercial banking, consumer lending, deposit services, and wealth management solutions across branches in key US coastal metropolitan areas.

FONR vs RBB — Head-to-Head

Bigger by revenue
RBB
RBB
1.3× larger
RBB
$32.3M
$25.5M
FONR
Growing faster (revenue YoY)
RBB
RBB
+10.2% gap
RBB
12.6%
2.4%
FONR
Higher net margin
RBB
RBB
23.4% more per $
RBB
31.5%
8.0%
FONR
More free cash flow
RBB
RBB
$42.8M more FCF
RBB
$42.6M
$-227.0K
FONR
Faster 2-yr revenue CAGR
RBB
RBB
Annualised
RBB
7.0%
-0.3%
FONR

Income Statement — Q2 FY2026 vs Q4 FY2025

Metric
FONR
FONR
RBB
RBB
Revenue
$25.5M
$32.3M
Net Profit
$2.1M
$10.2M
Gross Margin
Operating Margin
13.5%
39.5%
Net Margin
8.0%
31.5%
Revenue YoY
2.4%
12.6%
Net Profit YoY
4.7%
132.1%
EPS (diluted)
$0.59

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
FONR
FONR
RBB
RBB
Q4 25
$25.5M
$32.3M
Q3 25
$26.0M
$32.6M
Q2 25
$27.3M
$35.8M
Q1 25
$27.2M
$28.5M
Q4 24
$24.9M
$28.7M
Q3 24
$25.0M
$30.3M
Q2 24
$25.9M
$27.5M
Q1 24
$25.7M
$28.2M
Net Profit
FONR
FONR
RBB
RBB
Q4 25
$2.1M
$10.2M
Q3 25
$2.3M
$10.1M
Q2 25
$729.3K
$9.3M
Q1 25
$2.5M
$2.3M
Q4 24
$2.0M
$4.4M
Q3 24
$3.1M
$7.0M
Q2 24
$830.4K
$7.2M
Q1 24
$1.9M
$8.0M
Operating Margin
FONR
FONR
RBB
RBB
Q4 25
13.5%
39.5%
Q3 25
14.1%
40.7%
Q2 25
5.3%
36.1%
Q1 25
15.2%
11.2%
Q4 24
11.9%
17.6%
Q3 24
21.0%
31.6%
Q2 24
7.4%
35.6%
Q1 24
16.8%
39.9%
Net Margin
FONR
FONR
RBB
RBB
Q4 25
8.0%
31.5%
Q3 25
8.7%
31.2%
Q2 25
2.7%
26.1%
Q1 25
9.2%
8.0%
Q4 24
7.9%
15.3%
Q3 24
12.6%
23.1%
Q2 24
3.2%
26.4%
Q1 24
7.3%
28.4%
EPS (diluted)
FONR
FONR
RBB
RBB
Q4 25
$0.59
Q3 25
$0.59
Q2 25
$0.52
Q1 25
$0.13
Q4 24
$0.26
Q3 24
$0.39
Q2 24
$0.39
Q1 24
$0.43

Balance Sheet & Financial Strength

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

Metric
FONR
FONR
RBB
RBB
Cash + ST InvestmentsLiquidity on hand
$121.0K
$212.3M
Total DebtLower is stronger
$119.9M
Stockholders' EquityBook value
$176.9M
$523.4M
Total Assets
$217.2M
$4.2B
Debt / EquityLower = less leverage
0.23×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FONR
FONR
RBB
RBB
Q4 25
$121.0K
$212.3M
Q3 25
$122.0K
$234.9M
Q2 25
$56.5M
$191.9M
Q1 25
$123.0K
$238.8M
Q4 24
$121.0K
$257.7M
Q3 24
$136.0K
$349.4M
Q2 24
$56.5M
$252.8M
Q1 24
$134.0K
Total Debt
FONR
FONR
RBB
RBB
Q4 25
$119.9M
Q3 25
$119.8M
Q2 25
$119.7M
Q1 25
$119.6M
Q4 24
$119.5M
Q3 24
$119.4M
Q2 24
$66.9K
$119.3M
Q1 24
$119.2M
Stockholders' Equity
FONR
FONR
RBB
RBB
Q4 25
$176.9M
$523.4M
Q3 25
$174.9M
$514.3M
Q2 25
$172.6M
$517.7M
Q1 25
$171.9M
$510.3M
Q4 24
$169.8M
$507.9M
Q3 24
$168.7M
$509.7M
Q2 24
$166.0M
$511.3M
Q1 24
$165.8M
$514.0M
Total Assets
FONR
FONR
RBB
RBB
Q4 25
$217.2M
$4.2B
Q3 25
$218.4M
$4.2B
Q2 25
$216.9M
$4.1B
Q1 25
$214.9M
$4.0B
Q4 24
$208.0M
$4.0B
Q3 24
$212.3M
$4.0B
Q2 24
$214.2M
$3.9B
Q1 24
$209.6M
$3.9B
Debt / Equity
FONR
FONR
RBB
RBB
Q4 25
0.23×
Q3 25
0.23×
Q2 25
0.23×
Q1 25
0.23×
Q4 24
0.24×
Q3 24
0.23×
Q2 24
0.00×
0.23×
Q1 24
0.23×

Cash Flow & Capital Efficiency

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

Metric
FONR
FONR
RBB
RBB
Operating Cash FlowLast quarter
$171.0K
$43.4M
Free Cash FlowOCF − Capex
$-227.0K
$42.6M
FCF MarginFCF / Revenue
-0.9%
131.8%
Capex IntensityCapex / Revenue
1.6%
2.5%
Cash ConversionOCF / Net Profit
0.08×
4.26×
TTM Free Cash FlowTrailing 4 quarters
$5.7M
$73.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FONR
FONR
RBB
RBB
Q4 25
$171.0K
$43.4M
Q3 25
$1.7M
$2.1M
Q2 25
$4.2M
$21.7M
Q1 25
$3.1M
$7.8M
Q4 24
$2.2M
$58.5M
Q3 24
$1.7M
$24.5M
Q2 24
$4.6M
$11.7M
Q1 24
$2.8M
$4.8M
Free Cash Flow
FONR
FONR
RBB
RBB
Q4 25
$-227.0K
$42.6M
Q3 25
$-177.0K
$1.8M
Q2 25
$3.6M
$21.6M
Q1 25
$2.6M
$7.6M
Q4 24
$1.5M
$57.7M
Q3 24
$-148.0K
$24.2M
Q2 24
$4.2M
$11.5M
Q1 24
$2.6M
$4.7M
FCF Margin
FONR
FONR
RBB
RBB
Q4 25
-0.9%
131.8%
Q3 25
-0.7%
5.4%
Q2 25
13.1%
60.2%
Q1 25
9.4%
26.7%
Q4 24
6.0%
201.0%
Q3 24
-0.6%
80.0%
Q2 24
16.1%
42.0%
Q1 24
10.2%
16.6%
Capex Intensity
FONR
FONR
RBB
RBB
Q4 25
1.6%
2.5%
Q3 25
7.2%
1.1%
Q2 25
2.4%
0.3%
Q1 25
2.2%
0.6%
Q4 24
3.0%
2.7%
Q3 24
7.2%
0.8%
Q2 24
1.6%
0.5%
Q1 24
0.7%
0.5%
Cash Conversion
FONR
FONR
RBB
RBB
Q4 25
0.08×
4.26×
Q3 25
0.75×
0.21×
Q2 25
5.79×
2.32×
Q1 25
1.26×
3.39×
Q4 24
1.14×
13.34×
Q3 24
0.53×
3.50×
Q2 24
5.54×
1.61×
Q1 24
1.50×
0.60×

Financial Flow Comparison

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

Revenue Breakdown by Segment

FONR
FONR

Managementof Diagnostic Imaging Centers$23.2M91%
Manufacturingand Servicingof Medical Equipment$2.4M9%

RBB
RBB

Segment breakdown not available.

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