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Side-by-side financial comparison of IDEX Corporation (IEX) and Simon Property Group (SPG). Click either name above to swap in a different company.

Simon Property Group is the larger business by last-quarter revenue ($1.8B vs $899.1M, roughly 2.0× IDEX Corporation). Simon Property Group runs the higher net margin — 197.6% vs 14.3%, a 183.3% gap on every dollar of revenue. On growth, Simon Property Group posted the faster year-over-year revenue change (13.2% vs 4.2%). Simon Property Group produced more free cash flow last quarter ($948.8M vs $189.8M). Over the past eight quarters, Simon Property Group's revenue compounded faster (11.4% CAGR vs 6.0%).

IDEX can refer to several things, including:International Defence Exhibition, a biennial arms and defense technology sales exhibition IDEX Corporation, a publicly listed company that makes fluidics systems and specialty engineered products Ideanomics, a publicly traded company that trades under the IDEX ticker symbol.

Simon Media Properties, LLC, doing business as Simon Property Group, Inc., is an American real estate investment trust that invests in shopping malls, outlet centers, and community/lifestyle centers. It is the largest owner of shopping malls in the United States and is headquartered in Indianapolis, Indiana. As of December 31, 2024, it owned interests in 232 properties.

IEX vs SPG — Head-to-Head

Bigger by revenue
SPG
SPG
2.0× larger
SPG
$1.8B
$899.1M
IEX
Growing faster (revenue YoY)
SPG
SPG
+9.0% gap
SPG
13.2%
4.2%
IEX
Higher net margin
SPG
SPG
183.3% more per $
SPG
197.6%
14.3%
IEX
More free cash flow
SPG
SPG
$759.0M more FCF
SPG
$948.8M
$189.8M
IEX
Faster 2-yr revenue CAGR
SPG
SPG
Annualised
SPG
11.4%
6.0%
IEX

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
IEX
IEX
SPG
SPG
Revenue
$899.1M
$1.8B
Net Profit
$128.3M
$3.5B
Gross Margin
43.1%
Operating Margin
20.4%
49.7%
Net Margin
14.3%
197.6%
Revenue YoY
4.2%
13.2%
Net Profit YoY
4.1%
358.7%
EPS (diluted)
$1.71
$9.34

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
IEX
IEX
SPG
SPG
Q4 25
$899.1M
$1.8B
Q3 25
$878.7M
$1.6B
Q2 25
$865.4M
$1.5B
Q1 25
$814.3M
$1.5B
Q4 24
$862.9M
$1.6B
Q3 24
$798.2M
$1.5B
Q2 24
$807.2M
$1.5B
Q1 24
$800.5M
$1.4B
Net Profit
IEX
IEX
SPG
SPG
Q4 25
$128.3M
$3.5B
Q3 25
$127.8M
$702.7M
Q2 25
$131.6M
$643.7M
Q1 25
$95.5M
$477.9M
Q4 24
$123.2M
$771.8M
Q3 24
$119.1M
$546.7M
Q2 24
$141.3M
$569.4M
Q1 24
$121.4M
$841.2M
Gross Margin
IEX
IEX
SPG
SPG
Q4 25
43.1%
Q3 25
44.5%
Q2 25
45.3%
Q1 25
45.3%
Q4 24
42.5%
Q3 24
44.3%
Q2 24
45.4%
Q1 24
44.6%
Operating Margin
IEX
IEX
SPG
SPG
Q4 25
20.4%
49.7%
Q3 25
21.1%
50.8%
Q2 25
21.7%
49.7%
Q1 25
17.4%
49.4%
Q4 24
19.2%
52.8%
Q3 24
21.0%
51.9%
Q2 24
22.6%
51.7%
Q1 24
20.1%
51.0%
Net Margin
IEX
IEX
SPG
SPG
Q4 25
14.3%
197.6%
Q3 25
14.5%
43.9%
Q2 25
15.2%
43.0%
Q1 25
11.7%
32.4%
Q4 24
14.3%
48.8%
Q3 24
14.9%
36.9%
Q2 24
17.5%
39.0%
Q1 24
15.2%
58.3%
EPS (diluted)
IEX
IEX
SPG
SPG
Q4 25
$1.71
$9.34
Q3 25
$1.70
$1.86
Q2 25
$1.74
$1.70
Q1 25
$1.26
$1.27
Q4 24
$1.61
$2.04
Q3 24
$1.57
$1.46
Q2 24
$1.86
$1.51
Q1 24
$1.60
$2.25

Balance Sheet & Financial Strength

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

Metric
IEX
IEX
SPG
SPG
Cash + ST InvestmentsLiquidity on hand
$580.0M
$823.1M
Total DebtLower is stronger
$1.8B
$28.4B
Stockholders' EquityBook value
$4.0B
$5.2B
Total Assets
$6.9B
$40.6B
Debt / EquityLower = less leverage
0.45×
5.46×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IEX
IEX
SPG
SPG
Q4 25
$580.0M
$823.1M
Q3 25
$593.8M
$1.6B
Q2 25
$568.2M
$1.2B
Q1 25
$594.1M
$1.4B
Q4 24
$620.8M
$1.4B
Q3 24
$633.2M
$2.5B
Q2 24
$700.7M
$2.5B
Q1 24
$616.3M
$2.6B
Total Debt
IEX
IEX
SPG
SPG
Q4 25
$1.8B
$28.4B
Q3 25
$1.9B
$25.8B
Q2 25
$1.9B
$25.4B
Q1 25
$2.0B
$24.8B
Q4 24
$2.0B
$24.3B
Q3 24
$2.1B
$25.4B
Q2 24
$1.3B
$25.3B
Q1 24
$1.3B
$25.5B
Stockholders' Equity
IEX
IEX
SPG
SPG
Q4 25
$4.0B
$5.2B
Q3 25
$4.0B
$2.3B
Q2 25
$4.0B
$2.5B
Q1 25
$3.9B
$2.6B
Q4 24
$3.8B
$2.9B
Q3 24
$3.8B
$2.7B
Q2 24
$3.7B
$2.9B
Q1 24
$3.6B
$3.1B
Total Assets
IEX
IEX
SPG
SPG
Q4 25
$6.9B
$40.6B
Q3 25
$7.0B
$33.6B
Q2 25
$6.9B
$33.3B
Q1 25
$6.8B
$32.5B
Q4 24
$6.7B
$32.4B
Q3 24
$7.0B
$33.3B
Q2 24
$5.9B
$33.4B
Q1 24
$5.9B
$33.7B
Debt / Equity
IEX
IEX
SPG
SPG
Q4 25
0.45×
5.46×
Q3 25
0.48×
10.98×
Q2 25
0.46×
10.36×
Q1 25
0.50×
9.50×
Q4 24
0.52×
8.25×
Q3 24
0.55×
9.37×
Q2 24
0.36×
8.59×
Q1 24
0.37×
8.22×

Cash Flow & Capital Efficiency

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

Metric
IEX
IEX
SPG
SPG
Operating Cash FlowLast quarter
$209.5M
$1.2B
Free Cash FlowOCF − Capex
$189.8M
$948.8M
FCF MarginFCF / Revenue
21.1%
53.0%
Capex IntensityCapex / Revenue
2.2%
14.2%
Cash ConversionOCF / Net Profit
1.63×
0.34×
TTM Free Cash FlowTrailing 4 quarters
$616.8M
$3.2B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
IEX
IEX
SPG
SPG
Q4 25
$209.5M
$1.2B
Q3 25
$203.5M
$890.3M
Q2 25
$161.7M
$1.2B
Q1 25
$105.7M
$827.2M
Q4 24
$172.6M
$1.1B
Q3 24
$205.3M
$892.9M
Q2 24
$133.6M
$1.1B
Q1 24
$156.6M
$773.1M
Free Cash Flow
IEX
IEX
SPG
SPG
Q4 25
$189.8M
$948.8M
Q3 25
$188.7M
$685.0M
Q2 25
$146.9M
$971.3M
Q1 25
$91.4M
$597.0M
Q4 24
$157.1M
$867.7M
Q3 24
$191.6M
$706.5M
Q2 24
$117.7M
$874.8M
Q1 24
$136.6M
$610.1M
FCF Margin
IEX
IEX
SPG
SPG
Q4 25
21.1%
53.0%
Q3 25
21.5%
42.8%
Q2 25
17.0%
64.8%
Q1 25
11.2%
40.5%
Q4 24
18.2%
54.8%
Q3 24
24.0%
47.7%
Q2 24
14.6%
60.0%
Q1 24
17.1%
42.3%
Capex Intensity
IEX
IEX
SPG
SPG
Q4 25
2.2%
14.2%
Q3 25
1.7%
12.8%
Q2 25
1.7%
16.3%
Q1 25
1.8%
15.6%
Q4 24
1.8%
13.8%
Q3 24
1.7%
12.6%
Q2 24
2.0%
12.9%
Q1 24
2.5%
11.3%
Cash Conversion
IEX
IEX
SPG
SPG
Q4 25
1.63×
0.34×
Q3 25
1.59×
1.27×
Q2 25
1.23×
1.89×
Q1 25
1.11×
1.73×
Q4 24
1.40×
1.41×
Q3 24
1.72×
1.63×
Q2 24
0.95×
1.87×
Q1 24
1.29×
0.92×

Financial Flow Comparison

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

Revenue Breakdown by Segment

IEX
IEX

Fluid And Metering Technologies$305.0M34%
Fireand Safety$125.0M14%
Pumps$105.7M12%
Water1$92.1M10%
Performance Pneumatic Technologies$70.2M8%
Sealing Solutions$64.0M7%
Energy$47.9M5%
Material Processing Technologies$37.2M4%
Dispensing$33.5M4%
Valves$22.7M3%

SPG
SPG

Real Estate Segment$1.7B95%
Other$86.3M5%

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