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Side-by-side financial comparison of MKS INC (MKSI) and Public Storage (PSA). Click either name above to swap in a different company.

Public Storage is the larger business by last-quarter revenue ($1.2B vs $1.0B, roughly 1.2× MKS INC). Public Storage runs the higher net margin — 41.7% vs 10.3%, a 31.4% gap on every dollar of revenue. On growth, MKS INC posted the faster year-over-year revenue change (10.6% vs 3.3%). Over the past eight quarters, MKS INC's revenue compounded faster (9.1% CAGR vs 2.5%).

MKS, Inc is a subsidiary of PTC, Inc. It was previously a multinational independent software vendor that was acquired by Parametric Technology Corporation on May 31, 2011. MKS operated in the Application Lifecycle Management (ALM) and Systems Administration market segments.

Public Storage, headquartered in Glendale, California, is a real estate investment trust that invests in self storage. It is the largest brand of self-storage services in the US and owns approximately 9% of the self storage square footage in the U.S. As of December 31, 2024, the company operated 3,073 self-storage facilities containing an aggregate of 221 million net rentable square feet of space.

MKSI vs PSA — Head-to-Head

Bigger by revenue
PSA
PSA
1.2× larger
PSA
$1.2B
$1.0B
MKSI
Growing faster (revenue YoY)
MKSI
MKSI
+7.3% gap
MKSI
10.6%
3.3%
PSA
Higher net margin
PSA
PSA
31.4% more per $
PSA
41.7%
10.3%
MKSI
Faster 2-yr revenue CAGR
MKSI
MKSI
Annualised
MKSI
9.1%
2.5%
PSA

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
MKSI
MKSI
PSA
PSA
Revenue
$1.0B
$1.2B
Net Profit
$107.0M
$507.1M
Gross Margin
46.3%
Operating Margin
13.9%
40.7%
Net Margin
10.3%
41.7%
Revenue YoY
10.6%
3.3%
Net Profit YoY
18.9%
-17.5%
EPS (diluted)
$1.58
$2.59

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
MKSI
MKSI
PSA
PSA
Q4 25
$1.0B
$1.2B
Q3 25
$988.0M
$1.2B
Q2 25
$973.0M
$1.2B
Q1 25
$936.0M
$1.2B
Q4 24
$935.0M
$1.2B
Q3 24
$896.0M
$1.2B
Q2 24
$887.0M
$1.2B
Q1 24
$868.0M
$1.2B
Net Profit
MKSI
MKSI
PSA
PSA
Q4 25
$107.0M
$507.1M
Q3 25
$74.0M
$511.1M
Q2 25
$62.0M
$358.4M
Q1 25
$52.0M
$407.8M
Q4 24
$90.0M
$614.6M
Q3 24
$62.0M
$430.3M
Q2 24
$23.0M
$518.1M
Q1 24
$15.0M
$508.9M
Gross Margin
MKSI
MKSI
PSA
PSA
Q4 25
46.3%
Q3 25
46.7%
Q2 25
46.6%
Q1 25
47.4%
Q4 24
47.3%
Q3 24
48.2%
Q2 24
47.2%
Q1 24
47.8%
Operating Margin
MKSI
MKSI
PSA
PSA
Q4 25
13.9%
40.7%
Q3 25
14.0%
42.3%
Q2 25
13.9%
30.4%
Q1 25
11.9%
34.8%
Q4 24
14.7%
52.4%
Q3 24
14.3%
36.7%
Q2 24
14.3%
44.6%
Q1 24
12.2%
44.3%
Net Margin
MKSI
MKSI
PSA
PSA
Q4 25
10.3%
41.7%
Q3 25
7.5%
41.8%
Q2 25
6.4%
29.8%
Q1 25
5.6%
34.5%
Q4 24
9.6%
52.2%
Q3 24
6.9%
36.2%
Q2 24
2.6%
44.2%
Q1 24
1.7%
44.0%
EPS (diluted)
MKSI
MKSI
PSA
PSA
Q4 25
$1.58
$2.59
Q3 25
$1.10
$2.62
Q2 25
$0.92
$1.76
Q1 25
$0.77
$2.04
Q4 24
$1.34
$3.22
Q3 24
$0.92
$2.16
Q2 24
$0.33
$2.66
Q1 24
$0.22
$2.60

Balance Sheet & Financial Strength

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

Metric
MKSI
MKSI
PSA
PSA
Cash + ST InvestmentsLiquidity on hand
$418.0M
$318.1M
Total DebtLower is stronger
$4.2B
$10.3B
Stockholders' EquityBook value
$2.7B
$9.2B
Total Assets
$8.8B
$20.2B
Debt / EquityLower = less leverage
1.53×
1.11×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MKSI
MKSI
PSA
PSA
Q4 25
$418.0M
$318.1M
Q3 25
$413.0M
$296.5M
Q2 25
$498.0M
$1.1B
Q1 25
$407.0M
$287.2M
Q4 24
$420.0M
$447.4M
Q3 24
$439.0M
$599.0M
Q2 24
$506.0M
$542.3M
Q1 24
$1.0M
$271.6M
Total Debt
MKSI
MKSI
PSA
PSA
Q4 25
$4.2B
$10.3B
Q3 25
$4.3B
$10.0B
Q2 25
$4.4B
$10.4B
Q1 25
$4.4B
$9.4B
Q4 24
$4.5B
$9.4B
Q3 24
$4.8B
$9.5B
Q2 24
$4.8B
$9.4B
Q1 24
$4.7B
$9.1B
Stockholders' Equity
MKSI
MKSI
PSA
PSA
Q4 25
$2.7B
$9.2B
Q3 25
$2.6B
$9.3B
Q2 25
$2.6B
$9.4B
Q1 25
$2.4B
$9.6B
Q4 24
$2.3B
$9.7B
Q3 24
$2.4B
$9.6B
Q2 24
$2.2B
$9.7B
Q1 24
$2.4B
$9.9B
Total Assets
MKSI
MKSI
PSA
PSA
Q4 25
$8.8B
$20.2B
Q3 25
$8.8B
$20.1B
Q2 25
$8.8B
$20.5B
Q1 25
$8.6B
$19.6B
Q4 24
$8.6B
$19.8B
Q3 24
$9.0B
$19.8B
Q2 24
$8.9B
$19.8B
Q1 24
$8.9B
$19.6B
Debt / Equity
MKSI
MKSI
PSA
PSA
Q4 25
1.53×
1.11×
Q3 25
1.64×
1.08×
Q2 25
1.71×
1.11×
Q1 25
1.87×
0.99×
Q4 24
1.93×
0.96×
Q3 24
1.98×
0.99×
Q2 24
2.16×
0.97×
Q1 24
1.94×
0.91×

Cash Flow & Capital Efficiency

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

Metric
MKSI
MKSI
PSA
PSA
Operating Cash FlowLast quarter
$142.0M
$733.6M
Free Cash FlowOCF − Capex
$92.0M
FCF MarginFCF / Revenue
8.9%
Capex IntensityCapex / Revenue
4.8%
Cash ConversionOCF / Net Profit
1.33×
1.45×
TTM Free Cash FlowTrailing 4 quarters
$497.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MKSI
MKSI
PSA
PSA
Q4 25
$142.0M
$733.6M
Q3 25
$197.0M
$875.1M
Q2 25
$165.0M
$872.7M
Q1 25
$141.0M
$705.1M
Q4 24
$176.0M
$768.6M
Q3 24
$163.0M
$798.8M
Q2 24
$122.0M
$895.3M
Q1 24
$67.0M
$665.6M
Free Cash Flow
MKSI
MKSI
PSA
PSA
Q4 25
$92.0M
Q3 25
$146.0M
Q2 25
$136.0M
Q1 25
$123.0M
Q4 24
$125.0M
Q3 24
$141.0M
Q2 24
$95.0M
Q1 24
$49.0M
FCF Margin
MKSI
MKSI
PSA
PSA
Q4 25
8.9%
Q3 25
14.8%
Q2 25
14.0%
Q1 25
13.1%
Q4 24
13.4%
Q3 24
15.7%
Q2 24
10.7%
Q1 24
5.6%
Capex Intensity
MKSI
MKSI
PSA
PSA
Q4 25
4.8%
Q3 25
5.2%
Q2 25
3.0%
Q1 25
1.9%
Q4 24
5.5%
Q3 24
2.5%
Q2 24
3.0%
Q1 24
2.1%
Cash Conversion
MKSI
MKSI
PSA
PSA
Q4 25
1.33×
1.45×
Q3 25
2.66×
1.71×
Q2 25
2.66×
2.43×
Q1 25
2.71×
1.73×
Q4 24
1.96×
1.25×
Q3 24
2.63×
1.86×
Q2 24
5.30×
1.73×
Q1 24
4.47×
1.31×

Financial Flow Comparison

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

Revenue Breakdown by Segment

MKSI
MKSI

Electronics And Packaging$303.0M29%
Specialty Industrial$295.0M29%
Photonics Solutions Division$274.0M26%
Services$125.0M12%
Other$37.0M4%

PSA
PSA

Self Storage Operations$1.1B93%
Ancillary Operations$86.9M7%

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