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Side-by-side financial comparison of INNOSPEC INC. (IOSP) and WINTRUST FINANCIAL CORP (WTFC). Click either name above to swap in a different company.

WINTRUST FINANCIAL CORP is the larger business by last-quarter revenue ($713.2M vs $455.6M, roughly 1.6× INNOSPEC INC.). WINTRUST FINANCIAL CORP runs the higher net margin — 31.9% vs 10.4%, a 21.5% gap on every dollar of revenue. On growth, WINTRUST FINANCIAL CORP posted the faster year-over-year revenue change (10.9% vs -2.4%). Over the past eight quarters, WINTRUST FINANCIAL CORP's revenue compounded faster (9.8% 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.

Wintrust is a financial holding company in the United States that operates 15 chartered community banks in northern Illinois and southern Wisconsin. Wintrust is usually classified as a medium-sized banking institution in the United States and it trades on the Nasdaq Global Select Market with stock symbol WTFC. Wintrust is the second largest banking company in Chicago.

IOSP vs WTFC — Head-to-Head

Bigger by revenue
WTFC
WTFC
1.6× larger
WTFC
$713.2M
$455.6M
IOSP
Growing faster (revenue YoY)
WTFC
WTFC
+13.3% gap
WTFC
10.9%
-2.4%
IOSP
Higher net margin
WTFC
WTFC
21.5% more per $
WTFC
31.9%
10.4%
IOSP
Faster 2-yr revenue CAGR
WTFC
WTFC
Annualised
WTFC
9.8%
-4.6%
IOSP

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
IOSP
IOSP
WTFC
WTFC
Revenue
$455.6M
$713.2M
Net Profit
$47.4M
$227.4M
Gross Margin
28.0%
Operating Margin
10.3%
Net Margin
10.4%
31.9%
Revenue YoY
-2.4%
10.9%
Net Profit YoY
167.3%
EPS (diluted)
$1.90
$3.22

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
IOSP
IOSP
WTFC
WTFC
Q1 26
$713.2M
Q4 25
$455.6M
$714.3M
Q3 25
$441.9M
$697.8M
Q2 25
$439.7M
$670.8M
Q1 25
$440.8M
$643.1M
Q4 24
$466.8M
$638.6M
Q3 24
$443.4M
$615.7M
Q2 24
$435.0M
$591.8M
Net Profit
IOSP
IOSP
WTFC
WTFC
Q1 26
$227.4M
Q4 25
$47.4M
Q3 25
$12.9M
$216.3M
Q2 25
$23.5M
$195.5M
Q1 25
$32.8M
$189.0M
Q4 24
$-70.4M
Q3 24
$33.4M
$170.0M
Q2 24
$31.2M
$152.4M
Gross Margin
IOSP
IOSP
WTFC
WTFC
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
WTFC
WTFC
Q1 26
Q4 25
10.3%
42.3%
Q3 25
1.3%
42.4%
Q2 25
7.8%
39.8%
Q1 25
9.6%
39.3%
Q4 24
8.8%
39.6%
Q3 24
10.3%
37.8%
Q2 24
9.4%
35.7%
Net Margin
IOSP
IOSP
WTFC
WTFC
Q1 26
31.9%
Q4 25
10.4%
Q3 25
2.9%
31.0%
Q2 25
5.3%
29.1%
Q1 25
7.4%
29.4%
Q4 24
-15.1%
Q3 24
7.5%
27.6%
Q2 24
7.2%
25.8%
EPS (diluted)
IOSP
IOSP
WTFC
WTFC
Q1 26
$3.22
Q4 25
$1.90
$3.15
Q3 25
$0.52
$2.78
Q2 25
$0.94
$2.78
Q1 25
$1.31
$2.69
Q4 24
$-2.80
$2.63
Q3 24
$1.33
$2.47
Q2 24
$1.24
$2.32

Balance Sheet & Financial Strength

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

Metric
IOSP
IOSP
WTFC
WTFC
Cash + ST InvestmentsLiquidity on hand
$292.5M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.3B
$7.4B
Total Assets
$1.8B
$72.2B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IOSP
IOSP
WTFC
WTFC
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
WTFC
WTFC
Q1 26
$7.4B
Q4 25
$1.3B
$7.3B
Q3 25
$1.3B
$7.0B
Q2 25
$1.3B
$7.2B
Q1 25
$1.3B
$6.6B
Q4 24
$1.2B
$6.3B
Q3 24
$1.2B
$6.4B
Q2 24
$1.2B
$5.5B
Total Assets
IOSP
IOSP
WTFC
WTFC
Q1 26
$72.2B
Q4 25
$1.8B
$71.1B
Q3 25
$1.8B
$69.6B
Q2 25
$1.8B
$69.0B
Q1 25
$1.8B
$65.9B
Q4 24
$1.7B
$64.9B
Q3 24
$1.8B
$63.8B
Q2 24
$1.7B
$59.8B

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
WTFC
WTFC
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
WTFC
WTFC
Q1 26
Q4 25
$61.4M
$910.3M
Q3 25
$39.3M
$209.8M
Q2 25
$9.3M
$329.2M
Q1 25
$28.3M
$119.8M
Q4 24
$25.7M
$721.6M
Q3 24
$73.5M
$-61.6M
Q2 24
$4.7M
$221.2M
Free Cash Flow
IOSP
IOSP
WTFC
WTFC
Q1 26
Q4 25
$46.8M
$860.4M
Q3 25
$25.0M
Q2 25
$-3.7M
Q1 25
$19.9M
Q4 24
$13.6M
$635.5M
Q3 24
$65.8M
$-78.3M
Q2 24
$-6.2M
$182.1M
FCF Margin
IOSP
IOSP
WTFC
WTFC
Q1 26
Q4 25
10.3%
120.5%
Q3 25
5.7%
Q2 25
-0.8%
Q1 25
4.5%
Q4 24
2.9%
99.5%
Q3 24
14.8%
-12.7%
Q2 24
-1.4%
30.8%
Capex Intensity
IOSP
IOSP
WTFC
WTFC
Q1 26
Q4 25
3.2%
7.0%
Q3 25
3.2%
Q2 25
3.0%
Q1 25
1.9%
Q4 24
2.6%
13.5%
Q3 24
1.7%
2.7%
Q2 24
2.5%
6.6%
Cash Conversion
IOSP
IOSP
WTFC
WTFC
Q1 26
Q4 25
1.30×
Q3 25
3.05×
0.97×
Q2 25
0.40×
1.68×
Q1 25
0.86×
0.63×
Q4 24
Q3 24
2.20×
-0.36×
Q2 24
0.15×
1.45×

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%

WTFC
WTFC

Segment breakdown not available.

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