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Side-by-side financial comparison of SELECT MEDICAL HOLDINGS CORP (SEM) and Zscaler, Inc. (ZS). Click either name above to swap in a different company.

SELECT MEDICAL HOLDINGS CORP is the larger business by last-quarter revenue ($1.4B vs $788.1M, roughly 1.8× Zscaler, Inc.). SELECT MEDICAL HOLDINGS CORP runs the higher net margin — 4.5% vs -1.5%, a 6.0% gap on every dollar of revenue. On growth, Zscaler, Inc. posted the faster year-over-year revenue change (25.5% vs 5.0%). Over the past eight quarters, Zscaler, Inc.'s revenue compounded faster (22.5% CAGR vs 5.3%).

Select Medical is a healthcare company based in Pennsylvania. It owns long-term acute care and inpatient rehabilitation hospitals, as well as occupational health and physical therapy clinics. Select Medical is a subsidiary of Select Medical Holdings, which is listed on the New York Stock Exchange.

Zscaler, Inc. is an American cloud security company based in San Jose, California. The company offers cloud-based services to protect enterprise networks and data.

SEM vs ZS — Head-to-Head

Bigger by revenue
SEM
SEM
1.8× larger
SEM
$1.4B
$788.1M
ZS
Growing faster (revenue YoY)
ZS
ZS
+20.5% gap
ZS
25.5%
5.0%
SEM
Higher net margin
SEM
SEM
6.0% more per $
SEM
4.5%
-1.5%
ZS
Faster 2-yr revenue CAGR
ZS
ZS
Annualised
ZS
22.5%
5.3%
SEM

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
SEM
SEM
ZS
ZS
Revenue
$1.4B
$788.1M
Net Profit
$63.8M
$-11.6M
Gross Margin
76.6%
Operating Margin
6.9%
-4.6%
Net Margin
4.5%
-1.5%
Revenue YoY
5.0%
25.5%
Net Profit YoY
-14.7%
3.6%
EPS (diluted)
$0.35
$-0.07

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
SEM
SEM
ZS
ZS
Q1 26
$1.4B
Q4 25
$1.4B
$788.1M
Q3 25
$1.4B
$719.2M
Q2 25
$1.3B
$678.0M
Q1 25
$1.4B
$647.9M
Q4 24
$1.3B
$628.0M
Q3 24
$1.3B
$592.9M
Q2 24
$1.3B
$553.2M
Net Profit
SEM
SEM
ZS
ZS
Q1 26
$63.8M
Q4 25
$20.2M
$-11.6M
Q3 25
$28.8M
$-17.6M
Q2 25
$40.6M
$-4.1M
Q1 25
$56.7M
$-7.7M
Q4 24
$-16.1M
$-12.1M
Q3 24
$55.6M
$-14.9M
Q2 24
$77.6M
$19.1M
Gross Margin
SEM
SEM
ZS
ZS
Q1 26
Q4 25
76.6%
Q3 25
76.1%
Q2 25
77.0%
Q1 25
77.1%
Q4 24
77.5%
Q3 24
78.0%
Q2 24
78.6%
Operating Margin
SEM
SEM
ZS
ZS
Q1 26
6.9%
Q4 25
4.6%
-4.6%
Q3 25
5.4%
-4.5%
Q2 25
6.5%
-3.7%
Q1 25
8.3%
-6.2%
Q4 24
1.6%
-4.9%
Q3 24
4.3%
-4.5%
Q2 24
5.8%
-0.5%
Net Margin
SEM
SEM
ZS
ZS
Q1 26
4.5%
Q4 25
1.4%
-1.5%
Q3 25
2.1%
-2.4%
Q2 25
3.0%
-0.6%
Q1 25
4.2%
-1.2%
Q4 24
-1.2%
-1.9%
Q3 24
4.4%
-2.5%
Q2 24
6.1%
3.5%
EPS (diluted)
SEM
SEM
ZS
ZS
Q1 26
$0.35
Q4 25
$0.17
$-0.07
Q3 25
$0.23
$-0.11
Q2 25
$0.32
$-0.03
Q1 25
$0.44
$-0.05
Q4 24
$-0.12
$-0.08
Q3 24
$0.43
$-0.09
Q2 24
$0.60
$0.12

Balance Sheet & Financial Strength

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

Metric
SEM
SEM
ZS
ZS
Cash + ST InvestmentsLiquidity on hand
$25.7M
$1.3B
Total DebtLower is stronger
$1.8B
Stockholders' EquityBook value
$2.1B
$2.0B
Total Assets
$6.0B
$6.5B
Debt / EquityLower = less leverage
0.88×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
SEM
SEM
ZS
ZS
Q1 26
$25.7M
Q4 25
$26.5M
$1.3B
Q3 25
$60.1M
$2.4B
Q2 25
$52.3M
$2.0B
Q1 25
$53.2M
$1.8B
Q4 24
$59.7M
$1.6B
Q3 24
$191.5M
$1.4B
Q2 24
$111.2M
$1.3B
Total Debt
SEM
SEM
ZS
ZS
Q1 26
$1.8B
Q4 25
$1.8B
Q3 25
$1.7B
Q2 25
$1.8B
$1.1B
Q1 25
$1.8B
$1.1B
Q4 24
$1.7B
$1.1B
Q3 24
$3.1B
$1.1B
Q2 24
$3.6B
$1.1B
Stockholders' Equity
SEM
SEM
ZS
ZS
Q1 26
$2.1B
Q4 25
$1.7B
$2.0B
Q3 25
$1.7B
$1.8B
Q2 25
$1.7B
$1.8B
Q1 25
$1.7B
$1.6B
Q4 24
$1.7B
$1.4B
Q3 24
$1.9B
$1.3B
Q2 24
$1.4B
$1.1B
Total Assets
SEM
SEM
ZS
ZS
Q1 26
$6.0B
Q4 25
$5.9B
$6.5B
Q3 25
$5.7B
$6.4B
Q2 25
$5.7B
$5.3B
Q1 25
$5.7B
$5.0B
Q4 24
$5.6B
$4.7B
Q3 24
$8.0B
$4.7B
Q2 24
$7.9B
$4.2B
Debt / Equity
SEM
SEM
ZS
ZS
Q1 26
0.88×
Q4 25
1.06×
Q3 25
1.03×
Q2 25
1.10×
0.64×
Q1 25
1.03×
0.71×
Q4 24
1.01×
0.80×
Q3 24
1.62×
0.90×
Q2 24
2.54×
1.04×

Cash Flow & Capital Efficiency

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

Metric
SEM
SEM
ZS
ZS
Operating Cash FlowLast quarter
$448.3M
Free Cash FlowOCF − Capex
$431.0M
FCF MarginFCF / Revenue
54.7%
Capex IntensityCapex / Revenue
2.2%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$924.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
SEM
SEM
ZS
ZS
Q1 26
Q4 25
$64.3M
$448.3M
Q3 25
$175.3M
$250.6M
Q2 25
$110.3M
$211.1M
Q1 25
$-3.5M
$179.4M
Q4 24
$125.4M
$331.3M
Q3 24
$181.0M
$203.6M
Q2 24
$278.2M
$173.4M
Free Cash Flow
SEM
SEM
ZS
ZS
Q1 26
Q4 25
$5.2M
$431.0M
Q3 25
$122.2M
$190.6M
Q2 25
$45.6M
$138.9M
Q1 25
$-55.8M
$164.4M
Q4 24
$62.0M
$314.3M
Q3 24
$130.3M
$154.2M
Q2 24
$222.6M
$137.8M
FCF Margin
SEM
SEM
ZS
ZS
Q1 26
Q4 25
0.4%
54.7%
Q3 25
9.0%
26.5%
Q2 25
3.4%
20.5%
Q1 25
-4.1%
25.4%
Q4 24
4.7%
50.1%
Q3 24
10.2%
26.0%
Q2 24
17.4%
24.9%
Capex Intensity
SEM
SEM
ZS
ZS
Q1 26
Q4 25
4.2%
2.2%
Q3 25
3.9%
8.3%
Q2 25
4.8%
10.6%
Q1 25
3.9%
2.3%
Q4 24
4.8%
2.7%
Q3 24
4.0%
8.3%
Q2 24
4.3%
6.4%
Cash Conversion
SEM
SEM
ZS
ZS
Q1 26
Q4 25
3.19×
Q3 25
6.09×
Q2 25
2.72×
Q1 25
-0.06×
Q4 24
Q3 24
3.25×
Q2 24
3.59×
9.07×

Financial Flow Comparison

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

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