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Side-by-side financial comparison of Aterian, Inc. (ATER) and MIDDLEFIELD BANC CORP (MBCN). Click either name above to swap in a different company.

MIDDLEFIELD BANC CORP is the larger business by last-quarter revenue ($19.9M vs $15.1M, roughly 1.3× Aterian, Inc.). MIDDLEFIELD BANC CORP runs the higher net margin — 26.7% vs -52.5%, a 79.3% gap on every dollar of revenue. On growth, MIDDLEFIELD BANC CORP posted the faster year-over-year revenue change (18.3% vs -38.5%). MIDDLEFIELD BANC CORP produced more free cash flow last quarter ($3.4M vs $-1.0M). Over the past eight quarters, MIDDLEFIELD BANC CORP's revenue compounded faster (13.7% CAGR vs -13.5%).

Aterian, Inc. is a technology-enabled consumer products company that leverages artificial intelligence and data analytics to identify market demand, develop, source and distribute a wide portfolio of affordable goods spanning home improvement, wellness, personal care, pet supplies and outdoor recreation. It primarily sells its products through leading global e-commerce platforms, with core markets covering North America and Europe.

Star Banc Corporation was a Cincinnati, Ohio-based regional bank holding company that acquired Firstar in 1998 and took the Firstar name; the merged bank acquired U.S. Bancorp in 2001 and took the U.S. Bancorp name. The company can trace its origins back to 1863 when it was first founded as the First National Bank of Cincinnati.

ATER vs MBCN — Head-to-Head

Bigger by revenue
MBCN
MBCN
1.3× larger
MBCN
$19.9M
$15.1M
ATER
Growing faster (revenue YoY)
MBCN
MBCN
+56.8% gap
MBCN
18.3%
-38.5%
ATER
Higher net margin
MBCN
MBCN
79.3% more per $
MBCN
26.7%
-52.5%
ATER
More free cash flow
MBCN
MBCN
$4.4M more FCF
MBCN
$3.4M
$-1.0M
ATER
Faster 2-yr revenue CAGR
MBCN
MBCN
Annualised
MBCN
13.7%
-13.5%
ATER

Income Statement — Q4 FY2025 vs Q3 FY2025

Metric
ATER
ATER
MBCN
MBCN
Revenue
$15.1M
$19.9M
Net Profit
$-7.9M
$5.3M
Gross Margin
56.1%
Operating Margin
-51.1%
32.2%
Net Margin
-52.5%
26.7%
Revenue YoY
-38.5%
18.3%
Net Profit YoY
-512.2%
127.4%
EPS (diluted)
$0.65

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
ATER
ATER
MBCN
MBCN
Q4 25
$15.1M
Q3 25
$19.0M
$19.9M
Q2 25
$19.5M
$20.5M
Q1 25
$15.4M
$18.0M
Q4 24
$24.6M
$17.5M
Q3 24
$26.2M
$16.8M
Q2 24
$28.0M
$16.8M
Q1 24
$20.2M
$16.8M
Net Profit
ATER
ATER
MBCN
MBCN
Q4 25
$-7.9M
Q3 25
$-2.3M
$5.3M
Q2 25
$-4.9M
$6.2M
Q1 25
$-3.9M
$4.8M
Q4 24
$-1.3M
$4.8M
Q3 24
$-1.8M
$2.3M
Q2 24
$-3.6M
$4.2M
Q1 24
$-5.2M
$4.2M
Gross Margin
ATER
ATER
MBCN
MBCN
Q4 25
56.1%
Q3 25
56.1%
Q2 25
54.3%
Q1 25
61.4%
Q4 24
63.4%
Q3 24
60.3%
Q2 24
60.4%
Q1 24
65.1%
Operating Margin
ATER
ATER
MBCN
MBCN
Q4 25
-51.1%
Q3 25
-10.7%
32.2%
Q2 25
-23.1%
35.9%
Q1 25
-24.1%
31.9%
Q4 24
-6.5%
33.4%
Q3 24
-6.6%
16.1%
Q2 24
-11.5%
28.8%
Q1 24
-26.1%
29.4%
Net Margin
ATER
ATER
MBCN
MBCN
Q4 25
-52.5%
Q3 25
-12.0%
26.7%
Q2 25
-25.0%
30.0%
Q1 25
-25.4%
26.8%
Q4 24
-5.3%
27.8%
Q3 24
-6.8%
13.9%
Q2 24
-13.0%
24.7%
Q1 24
-25.5%
24.9%
EPS (diluted)
ATER
ATER
MBCN
MBCN
Q4 25
Q3 25
$0.65
Q2 25
$0.76
Q1 25
$0.60
Q4 24
$0.60
Q3 24
$0.29
Q2 24
$0.52
Q1 24
$0.51

Balance Sheet & Financial Strength

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

Metric
ATER
ATER
MBCN
MBCN
Cash + ST InvestmentsLiquidity on hand
$4.9M
Total DebtLower is stronger
Stockholders' EquityBook value
$15.2M
$224.1M
Total Assets
$29.6M
$2.0B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ATER
ATER
MBCN
MBCN
Q4 25
$4.9M
Q3 25
$7.6M
Q2 25
$10.5M
Q1 25
$14.3M
Q4 24
$18.0M
Q3 24
$16.1M
Q2 24
$20.3M
Q1 24
$17.5M
Stockholders' Equity
ATER
ATER
MBCN
MBCN
Q4 25
$15.2M
Q3 25
$22.6M
$224.1M
Q2 25
$24.3M
$216.1M
Q1 25
$27.0M
$213.8M
Q4 24
$30.0M
$210.6M
Q3 24
$30.6M
$210.7M
Q2 24
$30.9M
$206.8M
Q1 24
$33.0M
$205.6M
Total Assets
ATER
ATER
MBCN
MBCN
Q4 25
$29.6M
Q3 25
$40.1M
$2.0B
Q2 25
$45.4M
$1.9B
Q1 25
$49.8M
$1.9B
Q4 24
$49.5M
$1.9B
Q3 24
$52.1M
$1.9B
Q2 24
$59.9M
$1.8B
Q1 24
$55.7M
$1.8B

Cash Flow & Capital Efficiency

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

Metric
ATER
ATER
MBCN
MBCN
Operating Cash FlowLast quarter
$-1.0M
$4.8M
Free Cash FlowOCF − Capex
$-1.0M
$3.4M
FCF MarginFCF / Revenue
-6.9%
17.0%
Capex IntensityCapex / Revenue
0.0%
7.2%
Cash ConversionOCF / Net Profit
0.91×
TTM Free Cash FlowTrailing 4 quarters
$32.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ATER
ATER
MBCN
MBCN
Q4 25
$-1.0M
Q3 25
$-1.6M
$4.8M
Q2 25
$-4.4M
$4.8M
Q1 25
$-3.9M
$8.0M
Q4 24
$-9.0K
$17.5M
Q3 24
$-722.0K
$6.0M
Q2 24
$2.9M
$3.4M
Q1 24
$-6.0K
$5.4M
Free Cash Flow
ATER
ATER
MBCN
MBCN
Q4 25
$-1.0M
Q3 25
$-1.6M
$3.4M
Q2 25
$-4.4M
$4.2M
Q1 25
$7.7M
Q4 24
$16.7M
Q3 24
$5.8M
Q2 24
$2.9M
$3.3M
Q1 24
$-42.0K
$5.3M
FCF Margin
ATER
ATER
MBCN
MBCN
Q4 25
-6.9%
Q3 25
-8.4%
17.0%
Q2 25
-22.7%
20.5%
Q1 25
42.9%
Q4 24
95.6%
Q3 24
34.7%
Q2 24
10.3%
19.3%
Q1 24
-0.2%
31.9%
Capex Intensity
ATER
ATER
MBCN
MBCN
Q4 25
0.0%
Q3 25
0.2%
7.2%
Q2 25
0.0%
3.0%
Q1 25
0.0%
1.5%
Q4 24
0.0%
4.4%
Q3 24
0.0%
1.0%
Q2 24
0.0%
0.6%
Q1 24
0.2%
0.5%
Cash Conversion
ATER
ATER
MBCN
MBCN
Q4 25
Q3 25
0.91×
Q2 25
0.78×
Q1 25
1.66×
Q4 24
3.60×
Q3 24
2.57×
Q2 24
0.81×
Q1 24
1.31×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ATER
ATER

Sales Channel Directly To Consumer$13.1M87%
Heating Cooling And Air Quality$2.1M14%

MBCN
MBCN

Segment breakdown not available.

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