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Side-by-side financial comparison of INNOSPEC INC. (IOSP) and PROSPERITY BANCSHARES INC (PB). Click either name above to swap in a different company.

INNOSPEC INC. is the larger business by last-quarter revenue ($455.6M vs $367.6M, roughly 1.2× PROSPERITY BANCSHARES INC). PROSPERITY BANCSHARES INC runs the higher net margin — 31.6% vs 10.4%, a 21.2% gap on every dollar of revenue. Over the past eight quarters, PROSPERITY BANCSHARES INC's revenue compounded faster (19.2% CAGR vs -4.6%).

Innospec Inc., formerly known as Octel Corporation and Associated Octel Company, Ltd., is an American specialty chemical company. It comprises three business units:The Performance Chemicals business trades in the personal care, home care, agrochemical, mining and industrial markets. The Fuel Specialties business specializes in manufacturing and supplying fuel additives. The Oilfield Services business supplies drilling, completion and production chemicals.

Prosperity Bancshares, Inc. is a bank holding company headquartered in Houston, Texas with operations in Texas and central Oklahoma. As of December 31, 2019, the company operated 285 branches: 65 in the Houston area, including The Woodlands, Texas; 30 in South Texas, including Corpus Christi, Texas and Victoria, Texas; 75 in the Dallas–Fort Worth metroplex; 22 in East Texas; 29 in Central Texas, including Austin, Texas and San Antonio; 34 in West Texas, including Lubbock, Texas, Midland–Odess...

IOSP vs PB — Head-to-Head

Bigger by revenue
IOSP
IOSP
1.2× larger
IOSP
$455.6M
$367.6M
PB
Higher net margin
PB
PB
21.2% more per $
PB
31.6%
10.4%
IOSP
Faster 2-yr revenue CAGR
PB
PB
Annualised
PB
19.2%
-4.6%
IOSP

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
IOSP
IOSP
PB
PB
Revenue
$455.6M
$367.6M
Net Profit
$47.4M
$116.3M
Gross Margin
28.0%
Operating Margin
10.3%
Net Margin
10.4%
31.6%
Revenue YoY
-2.4%
Net Profit YoY
167.3%
-10.7%
EPS (diluted)
$1.90
$1.16

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
IOSP
IOSP
PB
PB
Q1 26
$367.6M
Q4 25
$455.6M
$275.0M
Q3 25
$441.9M
$273.4M
Q2 25
$439.7M
$267.7M
Q1 25
$440.8M
$265.4M
Q4 24
$466.8M
$267.8M
Q3 24
$443.4M
$261.7M
Q2 24
$435.0M
$258.8M
Net Profit
IOSP
IOSP
PB
PB
Q1 26
$116.3M
Q4 25
$47.4M
$139.9M
Q3 25
$12.9M
$137.6M
Q2 25
$23.5M
$135.2M
Q1 25
$32.8M
$130.2M
Q4 24
$-70.4M
$130.1M
Q3 24
$33.4M
$127.3M
Q2 24
$31.2M
$111.6M
Gross Margin
IOSP
IOSP
PB
PB
Q1 26
Q4 25
28.0%
Q3 25
26.4%
Q2 25
28.0%
Q1 25
28.4%
Q4 24
29.2%
Q3 24
28.0%
Q2 24
29.2%
Operating Margin
IOSP
IOSP
PB
PB
Q1 26
Q4 25
10.3%
65.1%
Q3 25
1.3%
64.4%
Q2 25
7.8%
64.3%
Q1 25
9.6%
62.7%
Q4 24
8.8%
62.0%
Q3 24
10.3%
62.1%
Q2 24
9.4%
55.2%
Net Margin
IOSP
IOSP
PB
PB
Q1 26
31.6%
Q4 25
10.4%
50.9%
Q3 25
2.9%
50.3%
Q2 25
5.3%
50.5%
Q1 25
7.4%
49.1%
Q4 24
-15.1%
48.6%
Q3 24
7.5%
48.6%
Q2 24
7.2%
43.1%
EPS (diluted)
IOSP
IOSP
PB
PB
Q1 26
$1.16
Q4 25
$1.90
$1.48
Q3 25
$0.52
$1.45
Q2 25
$0.94
$1.42
Q1 25
$1.31
$1.37
Q4 24
$-2.80
$1.36
Q3 24
$1.33
$1.34
Q2 24
$1.24
$1.17

Balance Sheet & Financial Strength

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

Metric
IOSP
IOSP
PB
PB
Cash + ST InvestmentsLiquidity on hand
$292.5M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.3B
$8.2B
Total Assets
$1.8B
$43.6B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IOSP
IOSP
PB
PB
Q1 26
Q4 25
$292.5M
Q3 25
$270.8M
Q2 25
$266.6M
Q1 25
$299.8M
Q4 24
$289.2M
Q3 24
$303.8M
Q2 24
$240.2M
Stockholders' Equity
IOSP
IOSP
PB
PB
Q1 26
$8.2B
Q4 25
$1.3B
$7.6B
Q3 25
$1.3B
$7.7B
Q2 25
$1.3B
$7.6B
Q1 25
$1.3B
$7.5B
Q4 24
$1.2B
$7.4B
Q3 24
$1.2B
$7.4B
Q2 24
$1.2B
$7.3B
Total Assets
IOSP
IOSP
PB
PB
Q1 26
$43.6B
Q4 25
$1.8B
$38.5B
Q3 25
$1.8B
$38.3B
Q2 25
$1.8B
$38.4B
Q1 25
$1.8B
$38.8B
Q4 24
$1.7B
$39.6B
Q3 24
$1.8B
$40.1B
Q2 24
$1.7B
$39.8B

Cash Flow & Capital Efficiency

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

Metric
IOSP
IOSP
PB
PB
Operating Cash FlowLast quarter
$61.4M
Free Cash FlowOCF − Capex
$46.8M
FCF MarginFCF / Revenue
10.3%
Capex IntensityCapex / Revenue
3.2%
Cash ConversionOCF / Net Profit
1.30×
TTM Free Cash FlowTrailing 4 quarters
$88.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
IOSP
IOSP
PB
PB
Q1 26
Q4 25
$61.4M
$78.3M
Q3 25
$39.3M
$194.8M
Q2 25
$9.3M
$98.2M
Q1 25
$28.3M
$178.2M
Q4 24
$25.7M
$-205.8M
Q3 24
$73.5M
$274.6M
Q2 24
$4.7M
$216.5M
Free Cash Flow
IOSP
IOSP
PB
PB
Q1 26
Q4 25
$46.8M
$68.5M
Q3 25
$25.0M
$185.7M
Q2 25
$-3.7M
$91.8M
Q1 25
$19.9M
$171.1M
Q4 24
$13.6M
$-210.7M
Q3 24
$65.8M
$270.2M
Q2 24
$-6.2M
$211.8M
FCF Margin
IOSP
IOSP
PB
PB
Q1 26
Q4 25
10.3%
24.9%
Q3 25
5.7%
67.9%
Q2 25
-0.8%
34.3%
Q1 25
4.5%
64.5%
Q4 24
2.9%
-78.7%
Q3 24
14.8%
103.3%
Q2 24
-1.4%
81.8%
Capex Intensity
IOSP
IOSP
PB
PB
Q1 26
Q4 25
3.2%
3.6%
Q3 25
3.2%
3.3%
Q2 25
3.0%
2.4%
Q1 25
1.9%
2.7%
Q4 24
2.6%
1.8%
Q3 24
1.7%
1.7%
Q2 24
2.5%
1.8%
Cash Conversion
IOSP
IOSP
PB
PB
Q1 26
Q4 25
1.30×
0.56×
Q3 25
3.05×
1.42×
Q2 25
0.40×
0.73×
Q1 25
0.86×
1.37×
Q4 24
-1.58×
Q3 24
2.20×
2.16×
Q2 24
0.15×
1.94×

Financial Flow Comparison

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

Revenue Breakdown by Segment

IOSP
IOSP

Refinery And Performance$147.0M32%
Personal Care$99.7M22%
Oilfield Services$93.1M20%
Other Fuel Specialties$47.1M10%
Other Performance Chemicals$40.0M9%
Home Care$28.7M6%

PB
PB

Net Interest Income$321.1M87%
Noninterest Income$46.5M13%

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