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Side-by-side financial comparison of NEWMARKET CORP (NEU) and OSI SYSTEMS INC (OSIS). Click either name above to swap in a different company.

NEWMARKET CORP is the larger business by last-quarter revenue ($669.7M vs $464.1M, roughly 1.4× OSI SYSTEMS INC). NEWMARKET CORP runs the higher net margin — 17.6% vs 8.3%, a 9.3% gap on every dollar of revenue. On growth, OSI SYSTEMS INC posted the faster year-over-year revenue change (10.5% vs -4.5%). Over the past eight quarters, OSI SYSTEMS INC's revenue compounded faster (7.0% CAGR vs -2.9%).

NewMarket Corporation, is a publicly traded American company that primarily serves the petroleum additives industry. The company is based in Richmond, Virginia, and has operations in North America, Latin America, Europe, the Middle East and Asia Pacific. The company's predecessor, the Albemarle Paper Manufacturing Company, was founded in 1887.

OSI Systems, Inc. is an American company based in California that develops and markets security and inspection systems such as airport security X-ray machines and metal detectors, medical monitoring and anesthesia systems, and optoelectronic devices. As of June 2010, the company employs approximately 3,180 personnel globally and includes subsidiary companies Spacelabs Healthcare, Rapiscan Systems and OSI Optoelectronics.

NEU vs OSIS — Head-to-Head

Bigger by revenue
NEU
NEU
1.4× larger
NEU
$669.7M
$464.1M
OSIS
Growing faster (revenue YoY)
OSIS
OSIS
+15.0% gap
OSIS
10.5%
-4.5%
NEU
Higher net margin
NEU
NEU
9.3% more per $
NEU
17.6%
8.3%
OSIS
Faster 2-yr revenue CAGR
OSIS
OSIS
Annualised
OSIS
7.0%
-2.9%
NEU

Income Statement — Q1 FY2026 vs Q2 FY2026

Metric
NEU
NEU
OSIS
OSIS
Revenue
$669.7M
$464.1M
Net Profit
$118.1M
$38.7M
Gross Margin
33.0%
32.7%
Operating Margin
21.4%
12.7%
Net Margin
17.6%
8.3%
Revenue YoY
-4.5%
10.5%
Net Profit YoY
-6.3%
2.3%
EPS (diluted)
$12.62
$2.22

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
NEU
NEU
OSIS
OSIS
Q1 26
$669.7M
Q4 25
$635.4M
$464.1M
Q3 25
$690.3M
$384.6M
Q2 25
$698.5M
$505.0M
Q1 25
$700.9M
$444.4M
Q4 24
$654.6M
$419.8M
Q3 24
$724.9M
$344.0M
Q2 24
$710.2M
$480.9M
Net Profit
NEU
NEU
OSIS
OSIS
Q1 26
$118.1M
Q4 25
$81.3M
$38.7M
Q3 25
$100.3M
$20.6M
Q2 25
$111.2M
$52.7M
Q1 25
$125.9M
$41.1M
Q4 24
$110.7M
$37.8M
Q3 24
$132.3M
$17.9M
Q2 24
$111.6M
$44.7M
Gross Margin
NEU
NEU
OSIS
OSIS
Q1 26
33.0%
Q4 25
30.0%
32.7%
Q3 25
30.4%
32.0%
Q2 25
31.6%
33.3%
Q1 25
33.7%
33.8%
Q4 24
31.7%
35.1%
Q3 24
33.6%
35.3%
Q2 24
30.8%
32.1%
Operating Margin
NEU
NEU
OSIS
OSIS
Q1 26
21.4%
Q4 25
17.3%
12.7%
Q3 25
18.9%
8.6%
Q2 25
20.5%
14.5%
Q1 25
22.8%
12.7%
Q4 24
20.3%
13.8%
Q3 24
23.4%
8.8%
Q2 24
20.7%
13.1%
Net Margin
NEU
NEU
OSIS
OSIS
Q1 26
17.6%
Q4 25
12.8%
8.3%
Q3 25
14.5%
5.3%
Q2 25
15.9%
10.4%
Q1 25
18.0%
9.3%
Q4 24
16.9%
9.0%
Q3 24
18.3%
5.2%
Q2 24
15.7%
9.3%
EPS (diluted)
NEU
NEU
OSIS
OSIS
Q1 26
$12.62
Q4 25
$8.67
$2.22
Q3 25
$10.67
$1.18
Q2 25
$11.84
$3.04
Q1 25
$13.26
$2.40
Q4 24
$11.57
$2.22
Q3 24
$13.79
$1.05
Q2 24
$11.63
$2.57

Balance Sheet & Financial Strength

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

Metric
NEU
NEU
OSIS
OSIS
Cash + ST InvestmentsLiquidity on hand
$73.2M
$336.7M
Total DebtLower is stronger
$939.6M
$1.0B
Stockholders' EquityBook value
$1.7B
$845.5M
Total Assets
$3.5B
$2.5B
Debt / EquityLower = less leverage
0.54×
1.19×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
NEU
NEU
OSIS
OSIS
Q1 26
$73.2M
Q4 25
$77.6M
$336.7M
Q3 25
$102.5M
$124.4M
Q2 25
$70.3M
$106.4M
Q1 25
$118.3M
$95.8M
Q4 24
$77.5M
$101.6M
Q3 24
$80.3M
$85.1M
Q2 24
$87.6M
$95.4M
Total Debt
NEU
NEU
OSIS
OSIS
Q1 26
$939.6M
Q4 25
$883.4M
$1.0B
Q3 25
$783.1M
$442.2M
Q2 25
$841.8M
$471.6M
Q1 25
$990.6M
$473.2M
Q4 24
$971.3M
$474.8M
Q3 24
$1.1B
$476.3M
Q2 24
$1.2B
$137.6M
Stockholders' Equity
NEU
NEU
OSIS
OSIS
Q1 26
$1.7B
Q4 25
$1.8B
$845.5M
Q3 25
$1.7B
$946.0M
Q2 25
$1.6B
$951.1M
Q1 25
$1.5B
$879.3M
Q4 24
$1.5B
$825.8M
Q3 24
$1.4B
$786.5M
Q2 24
$1.2B
$863.5M
Total Assets
NEU
NEU
OSIS
OSIS
Q1 26
$3.5B
Q4 25
$3.5B
$2.5B
Q3 25
$3.2B
$2.3B
Q2 25
$3.2B
$2.2B
Q1 25
$3.2B
$2.1B
Q4 24
$3.1B
$2.1B
Q3 24
$3.2B
$2.1B
Q2 24
$3.2B
$1.9B
Debt / Equity
NEU
NEU
OSIS
OSIS
Q1 26
0.54×
Q4 25
0.50×
1.19×
Q3 25
0.46×
0.47×
Q2 25
0.52×
0.50×
Q1 25
0.65×
0.54×
Q4 24
0.66×
0.57×
Q3 24
0.80×
0.61×
Q2 24
0.95×
0.16×

Cash Flow & Capital Efficiency

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

Metric
NEU
NEU
OSIS
OSIS
Operating Cash FlowLast quarter
$62.2M
Free Cash FlowOCF − Capex
$55.5M
FCF MarginFCF / Revenue
12.0%
Capex IntensityCapex / Revenue
3.6%
1.4%
Cash ConversionOCF / Net Profit
1.61×
TTM Free Cash FlowTrailing 4 quarters
$137.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
NEU
NEU
OSIS
OSIS
Q1 26
Q4 25
$145.2M
$62.2M
Q3 25
$142.4M
$17.1M
Q2 25
$161.1M
$562.0K
Q1 25
$120.3M
$81.6M
Q4 24
$185.2M
$52.5M
Q3 24
$116.6M
$-37.2M
Q2 24
$115.0M
$-29.0M
Free Cash Flow
NEU
NEU
OSIS
OSIS
Q1 26
Q4 25
$117.2M
$55.5M
Q3 25
$122.1M
$10.1M
Q2 25
$144.8M
$-5.6M
Q1 25
$107.3M
$77.1M
Q4 24
$170.6M
$47.1M
Q3 24
$102.4M
$-44.9M
Q2 24
$100.0M
$-37.5M
FCF Margin
NEU
NEU
OSIS
OSIS
Q1 26
Q4 25
18.4%
12.0%
Q3 25
17.7%
2.6%
Q2 25
20.7%
-1.1%
Q1 25
15.3%
17.4%
Q4 24
26.1%
11.2%
Q3 24
14.1%
-13.0%
Q2 24
14.1%
-7.8%
Capex Intensity
NEU
NEU
OSIS
OSIS
Q1 26
3.6%
Q4 25
4.4%
1.4%
Q3 25
2.9%
1.8%
Q2 25
2.3%
1.2%
Q1 25
1.9%
1.0%
Q4 24
2.2%
1.3%
Q3 24
2.0%
2.2%
Q2 24
2.1%
1.8%
Cash Conversion
NEU
NEU
OSIS
OSIS
Q1 26
Q4 25
1.79×
1.61×
Q3 25
1.42×
0.83×
Q2 25
1.45×
0.01×
Q1 25
0.96×
1.98×
Q4 24
1.67×
1.39×
Q3 24
0.88×
-2.07×
Q2 24
1.03×
-0.65×

Financial Flow Comparison

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

Revenue Breakdown by Segment

NEU
NEU

Segment breakdown not available.

OSIS
OSIS

Security Division$334.7M72%
Optoelectronics And Manufacturing Division$92.8M20%
Healthcare Division$36.5M8%

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