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Side-by-side financial comparison of Dorman Products, Inc. (DORM) and SEI INVESTMENTS CO (SEIC). Click either name above to swap in a different company.

SEI INVESTMENTS CO is the larger business by last-quarter revenue ($622.2M vs $528.8M, roughly 1.2× Dorman Products, Inc.). SEI INVESTMENTS CO runs the higher net margin — 28.0% vs 8.2%, a 19.8% gap on every dollar of revenue. On growth, SEI INVESTMENTS CO posted the faster year-over-year revenue change (13.0% vs 4.2%). Over the past eight quarters, SEI INVESTMENTS CO's revenue compounded faster (9.5% CAGR vs 2.5%).

Dorman Products is an American manufacturer of aftermarket automotive products in the United States. The company was founded in 1918. The company trades on the NASDAQ under the ticker DORM. The company is headquartered in Colmar, Pennsylvania.

SEI Investments Company, formerly Simulated Environments Inc., is a financial services company headquartered in Oaks, Pennsylvania, United States. SEI provides products and services to institutions, private banks, investment advisors, investment managers, and private clients. Through its subsidiaries and partnerships in which the company has significant interests, SEI manages, advises or administers $1 trillion in hedge funds, private equity, mutual funds and pooled or separately managed asse...

DORM vs SEIC — Head-to-Head

Bigger by revenue
SEIC
SEIC
1.2× larger
SEIC
$622.2M
$528.8M
DORM
Growing faster (revenue YoY)
SEIC
SEIC
+8.8% gap
SEIC
13.0%
4.2%
DORM
Higher net margin
SEIC
SEIC
19.8% more per $
SEIC
28.0%
8.2%
DORM
Faster 2-yr revenue CAGR
SEIC
SEIC
Annualised
SEIC
9.5%
2.5%
DORM

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
DORM
DORM
SEIC
SEIC
Revenue
$528.8M
$622.2M
Net Profit
$43.6M
$174.5M
Gross Margin
36.0%
Operating Margin
11.1%
30.5%
Net Margin
8.2%
28.0%
Revenue YoY
4.2%
13.0%
Net Profit YoY
-24.3%
15.0%
EPS (diluted)
$1.43
$1.40

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
DORM
DORM
SEIC
SEIC
Q1 26
$528.8M
$622.2M
Q4 25
$537.9M
$607.9M
Q3 25
$543.7M
$578.5M
Q2 25
$541.0M
$559.6M
Q1 25
$507.7M
$551.3M
Q4 24
$533.8M
$557.2M
Q3 24
$503.8M
$537.4M
Q2 24
$503.0M
$519.0M
Net Profit
DORM
DORM
SEIC
SEIC
Q1 26
$43.6M
$174.5M
Q4 25
$11.6M
$172.5M
Q3 25
$76.4M
$164.2M
Q2 25
$58.7M
$227.1M
Q1 25
$57.5M
$151.5M
Q4 24
$54.5M
$155.8M
Q3 24
$55.3M
$154.9M
Q2 24
$47.4M
$139.1M
Gross Margin
DORM
DORM
SEIC
SEIC
Q1 26
36.0%
Q4 25
42.6%
36.8%
Q3 25
44.4%
35.0%
Q2 25
40.6%
33.8%
Q1 25
40.9%
34.9%
Q4 24
41.5%
33.1%
Q3 24
40.5%
33.8%
Q2 24
39.6%
32.7%
Operating Margin
DORM
DORM
SEIC
SEIC
Q1 26
11.1%
30.5%
Q4 25
5.8%
26.6%
Q3 25
19.4%
27.7%
Q2 25
15.2%
26.6%
Q1 25
15.8%
28.5%
Q4 24
16.3%
26.1%
Q3 24
15.7%
26.8%
Q2 24
14.4%
26.3%
Net Margin
DORM
DORM
SEIC
SEIC
Q1 26
8.2%
28.0%
Q4 25
2.1%
28.4%
Q3 25
14.1%
28.4%
Q2 25
10.9%
40.6%
Q1 25
11.3%
27.5%
Q4 24
10.2%
28.0%
Q3 24
11.0%
28.8%
Q2 24
9.4%
26.8%
EPS (diluted)
DORM
DORM
SEIC
SEIC
Q1 26
$1.43
$1.40
Q4 25
$0.38
$1.38
Q3 25
$2.48
$1.30
Q2 25
$1.91
$1.78
Q1 25
$1.87
$1.17
Q4 24
$1.76
$1.18
Q3 24
$1.80
$1.19
Q2 24
$1.53
$1.05

Balance Sheet & Financial Strength

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

Metric
DORM
DORM
SEIC
SEIC
Cash + ST InvestmentsLiquidity on hand
$43.1M
$363.1M
Total DebtLower is stronger
$440.0M
$32.4M
Stockholders' EquityBook value
$1.5B
$2.5B
Total Assets
$2.4B
$3.3B
Debt / EquityLower = less leverage
0.30×
0.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DORM
DORM
SEIC
SEIC
Q1 26
$43.1M
$363.1M
Q4 25
$49.4M
$399.8M
Q3 25
$55.5M
Q2 25
$56.8M
Q1 25
$60.6M
$710.7M
Q4 24
$57.1M
$839.9M
Q3 24
$45.1M
$901.1M
Q2 24
$47.5M
$768.3M
Total Debt
DORM
DORM
SEIC
SEIC
Q1 26
$440.0M
$32.4M
Q4 25
$440.6M
Q3 25
Q2 25
Q1 25
Q4 24
$468.8M
Q3 24
Q2 24
Stockholders' Equity
DORM
DORM
SEIC
SEIC
Q1 26
$1.5B
$2.5B
Q4 25
$1.5B
$2.4B
Q3 25
$1.5B
$2.4B
Q2 25
$1.4B
$2.3B
Q1 25
$1.3B
$2.3B
Q4 24
$1.3B
$2.3B
Q3 24
$1.2B
$2.4B
Q2 24
$1.2B
$2.2B
Total Assets
DORM
DORM
SEIC
SEIC
Q1 26
$2.4B
$3.3B
Q4 25
$2.5B
Q3 25
$2.6B
Q2 25
$2.5B
$2.6B
Q1 25
$2.4B
$2.6B
Q4 24
$2.4B
$2.7B
Q3 24
$2.4B
$2.7B
Q2 24
$2.3B
$2.5B
Debt / Equity
DORM
DORM
SEIC
SEIC
Q1 26
0.30×
0.01×
Q4 25
0.30×
Q3 25
Q2 25
Q1 25
Q4 24
0.36×
Q3 24
Q2 24

Financial Flow Comparison

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

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