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Side-by-side financial comparison of Core Laboratories Inc. (CLB) and RAMBUS INC (RMBS). Click either name above to swap in a different company.

RAMBUS INC is the larger business by last-quarter revenue ($180.2M vs $121.8M, roughly 1.5× Core Laboratories Inc.). RAMBUS INC runs the higher net margin — 33.2% vs 4.2%, a 29.0% gap on every dollar of revenue. On growth, RAMBUS INC posted the faster year-over-year revenue change (8.1% vs -1.4%). Over the past eight quarters, RAMBUS INC's revenue compounded faster (16.8% CAGR vs -3.4%).

Abbott Laboratories, commonly known as Abbott, is an American multinational medical devices and health care company with headquarters in Abbott Park, Illinois. The company produces pharmaceuticals for sale outside the United States, diagnostic products, nutritional products, and medical devices.

Rambus Inc. is an American technology company that designs, develops and licenses chip interface technologies and architectures that are used in digital electronics products. The company, founded in 1990, is well known for inventing RDRAM and for its intellectual property-based litigation following the introduction of DDR-SDRAM memory.

CLB vs RMBS — Head-to-Head

Bigger by revenue
RMBS
RMBS
1.5× larger
RMBS
$180.2M
$121.8M
CLB
Growing faster (revenue YoY)
RMBS
RMBS
+9.5% gap
RMBS
8.1%
-1.4%
CLB
Higher net margin
RMBS
RMBS
29.0% more per $
RMBS
33.2%
4.2%
CLB
Faster 2-yr revenue CAGR
RMBS
RMBS
Annualised
RMBS
16.8%
-3.4%
CLB

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
CLB
CLB
RMBS
RMBS
Revenue
$121.8M
$180.2M
Net Profit
$5.1M
$59.9M
Gross Margin
79.7%
Operating Margin
1.5%
34.3%
Net Margin
4.2%
33.2%
Revenue YoY
-1.4%
8.1%
Net Profit YoY
-7.3%
EPS (diluted)
$0.11
$0.55

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
CLB
CLB
RMBS
RMBS
Q1 26
$121.8M
$180.2M
Q4 25
$138.3M
$190.2M
Q3 25
$134.5M
$178.5M
Q2 25
$130.2M
$172.2M
Q1 25
$123.6M
$166.7M
Q4 24
$129.2M
$161.1M
Q3 24
$134.4M
$145.5M
Q2 24
$130.6M
$132.1M
Net Profit
CLB
CLB
RMBS
RMBS
Q1 26
$5.1M
$59.9M
Q4 25
$4.9M
$63.8M
Q3 25
$14.2M
$48.4M
Q2 25
$10.6M
$57.9M
Q1 25
$-154.0K
$60.3M
Q4 24
$7.4M
$62.2M
Q3 24
$11.7M
$48.7M
Q2 24
$9.0M
$36.1M
Gross Margin
CLB
CLB
RMBS
RMBS
Q1 26
79.7%
Q4 25
20.8%
78.9%
Q3 25
22.0%
79.5%
Q2 25
20.3%
79.8%
Q1 25
19.5%
80.3%
Q4 24
17.8%
80.4%
Q3 24
20.5%
80.7%
Q2 24
21.2%
79.7%
Operating Margin
CLB
CLB
RMBS
RMBS
Q1 26
1.5%
34.3%
Q4 25
11.5%
37.2%
Q3 25
15.6%
35.4%
Q2 25
11.7%
36.6%
Q1 25
3.6%
37.9%
Q4 24
11.0%
35.9%
Q3 24
14.7%
37.6%
Q2 24
12.3%
30.5%
Net Margin
CLB
CLB
RMBS
RMBS
Q1 26
4.2%
33.2%
Q4 25
3.6%
33.6%
Q3 25
10.6%
27.1%
Q2 25
8.2%
33.6%
Q1 25
-0.1%
36.2%
Q4 24
5.7%
38.6%
Q3 24
8.7%
33.4%
Q2 24
6.9%
27.3%
EPS (diluted)
CLB
CLB
RMBS
RMBS
Q1 26
$0.11
$0.55
Q4 25
$0.11
$0.58
Q3 25
$0.30
$0.44
Q2 25
$0.22
$0.53
Q1 25
$0.00
$0.56
Q4 24
$0.15
$0.57
Q3 24
$0.25
$0.45
Q2 24
$0.19
$0.33

Balance Sheet & Financial Strength

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

Metric
CLB
CLB
RMBS
RMBS
Cash + ST InvestmentsLiquidity on hand
$22.8M
$134.3M
Total DebtLower is stronger
Stockholders' EquityBook value
$275.1M
Total Assets
$587.7M
$1.5B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CLB
CLB
RMBS
RMBS
Q1 26
$22.8M
$134.3M
Q4 25
$22.7M
$182.8M
Q3 25
$25.6M
$79.2M
Q2 25
$31.2M
$87.8M
Q1 25
$22.1M
$132.2M
Q4 24
$19.2M
$99.8M
Q3 24
$21.5M
$114.0M
Q2 24
$17.7M
$124.6M
Total Debt
CLB
CLB
RMBS
RMBS
Q1 26
Q4 25
$110.3M
Q3 25
$114.1M
Q2 25
$124.6M
Q1 25
$124.4M
Q4 24
$126.1M
Q3 24
$139.9M
Q2 24
$147.6M
Stockholders' Equity
CLB
CLB
RMBS
RMBS
Q1 26
$275.1M
Q4 25
$266.0M
$1.4B
Q3 25
$271.3M
$1.3B
Q2 25
$261.3M
$1.2B
Q1 25
$253.4M
$1.2B
Q4 24
$246.6M
$1.1B
Q3 24
$250.7M
$1.0B
Q2 24
$240.3M
$1.0B
Total Assets
CLB
CLB
RMBS
RMBS
Q1 26
$587.7M
$1.5B
Q4 25
$584.0M
$1.5B
Q3 25
$591.4M
$1.4B
Q2 25
$602.1M
$1.5B
Q1 25
$591.5M
$1.4B
Q4 24
$585.1M
$1.3B
Q3 24
$600.5M
$1.3B
Q2 24
$597.8M
$1.3B
Debt / Equity
CLB
CLB
RMBS
RMBS
Q1 26
Q4 25
0.41×
Q3 25
0.42×
Q2 25
0.48×
Q1 25
0.49×
Q4 24
0.51×
Q3 24
0.56×
Q2 24
0.61×

Cash Flow & Capital Efficiency

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

Metric
CLB
CLB
RMBS
RMBS
Operating Cash FlowLast quarter
$4.0M
Free Cash FlowOCF − Capex
$517.0K
FCF MarginFCF / Revenue
0.4%
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
0.77×
TTM Free Cash FlowTrailing 4 quarters
$22.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CLB
CLB
RMBS
RMBS
Q1 26
$4.0M
Q4 25
$7.9M
$99.8M
Q3 25
$8.5M
$88.4M
Q2 25
$13.9M
$94.4M
Q1 25
$6.7M
$77.4M
Q4 24
$20.6M
$59.0M
Q3 24
$13.1M
$62.1M
Q2 24
$17.1M
$70.4M
Free Cash Flow
CLB
CLB
RMBS
RMBS
Q1 26
$517.0K
Q4 25
$5.0M
$93.3M
Q3 25
$6.5M
$82.5M
Q2 25
$10.4M
$87.9M
Q1 25
$3.9M
$69.5M
Q4 24
$17.4M
$52.5M
Q3 24
$10.4M
$52.2M
Q2 24
$14.3M
$59.1M
FCF Margin
CLB
CLB
RMBS
RMBS
Q1 26
0.4%
Q4 25
3.6%
49.0%
Q3 25
4.8%
46.2%
Q2 25
8.0%
51.0%
Q1 25
3.1%
41.7%
Q4 24
13.4%
32.6%
Q3 24
7.7%
35.9%
Q2 24
10.9%
44.7%
Capex Intensity
CLB
CLB
RMBS
RMBS
Q1 26
Q4 25
2.1%
3.4%
Q3 25
1.5%
3.3%
Q2 25
2.7%
3.8%
Q1 25
2.3%
4.7%
Q4 24
2.5%
4.0%
Q3 24
2.0%
6.8%
Q2 24
2.2%
8.6%
Cash Conversion
CLB
CLB
RMBS
RMBS
Q1 26
0.77×
Q4 25
1.61×
1.56×
Q3 25
0.60×
1.83×
Q2 25
1.31×
1.63×
Q1 25
1.28×
Q4 24
2.78×
0.95×
Q3 24
1.12×
1.28×
Q2 24
1.90×
1.95×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CLB
CLB

Segment breakdown not available.

RMBS
RMBS

Product revenue$88.0M49%
Royalties$69.6M39%
Contract and other revenue$22.6M13%

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