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Side-by-side financial comparison of AMKOR TECHNOLOGY, INC. (AMKR) and MPLX LP (MPLX). Click either name above to swap in a different company.

MPLX LP is the larger business by last-quarter revenue ($2.5B vs $1.7B, roughly 1.5× AMKOR TECHNOLOGY, INC.). MPLX LP runs the higher net margin — 49.1% vs 4.9%, a 44.2% gap on every dollar of revenue. On growth, AMKOR TECHNOLOGY, INC. posted the faster year-over-year revenue change (27.5% vs 1.4%). Over the past eight quarters, AMKOR TECHNOLOGY, INC.'s revenue compounded faster (7.4% CAGR vs 6.2%).

Amkor Technology, Inc. is a semiconductor product packaging and test services provider. The company has been headquartered in Arizona, since 2005, when it was moved from West Chester, Pennsylvania, also in the United States. The company's Arizona headquarters was originally in Chandler, then later moved to Tempe. The company was founded in 1968 and, as of 2022, has approximately 31,000 employees worldwide and a reported $7.1 billion in sales.

MarkWest Energy Partners, L.P., a subsidiary of MPLX LP, is a natural gas gathering, processing and transportation company master limited partnership of the United States. In 1988, the company was founded in Denver, Colorado and grew to be Colorado's 13th largest company. In 2015 it was acquired by MPLX, itself a subsidiary of Marathon Petroleum.

AMKR vs MPLX — Head-to-Head

Bigger by revenue
MPLX
MPLX
1.5× larger
MPLX
$2.5B
$1.7B
AMKR
Growing faster (revenue YoY)
AMKR
AMKR
+26.1% gap
AMKR
27.5%
1.4%
MPLX
Higher net margin
MPLX
MPLX
44.2% more per $
MPLX
49.1%
4.9%
AMKR
Faster 2-yr revenue CAGR
AMKR
AMKR
Annualised
AMKR
7.4%
6.2%
MPLX

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
AMKR
AMKR
MPLX
MPLX
Revenue
$1.7B
$2.5B
Net Profit
$83.0M
$1.2B
Gross Margin
14.2%
Operating Margin
5.9%
60.5%
Net Margin
4.9%
49.1%
Revenue YoY
27.5%
1.4%
Net Profit YoY
295.2%
8.5%
EPS (diluted)
$0.33

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
AMKR
AMKR
MPLX
MPLX
Q1 26
$1.7B
Q4 25
$1.9B
$2.5B
Q3 25
$2.0B
$2.5B
Q2 25
$1.5B
$2.4B
Q1 25
$1.3B
$2.5B
Q4 24
$1.6B
$2.4B
Q3 24
$1.9B
$2.3B
Q2 24
$1.5B
$2.3B
Net Profit
AMKR
AMKR
MPLX
MPLX
Q1 26
$83.0M
Q4 25
$171.8M
$1.2B
Q3 25
$126.6M
$1.6B
Q2 25
$54.4M
$1.1B
Q1 25
$21.1M
$1.1B
Q4 24
$105.6M
$1.1B
Q3 24
$122.6M
$1.0B
Q2 24
$66.9M
$1.2B
Gross Margin
AMKR
AMKR
MPLX
MPLX
Q1 26
14.2%
Q4 25
16.7%
Q3 25
14.3%
Q2 25
12.0%
Q1 25
11.9%
Q4 24
15.1%
Q3 24
14.6%
Q2 24
14.5%
Operating Margin
AMKR
AMKR
MPLX
MPLX
Q1 26
5.9%
Q4 25
9.8%
60.5%
Q3 25
8.0%
73.2%
Q2 25
6.1%
54.9%
Q1 25
2.4%
55.5%
Q4 24
8.3%
55.6%
Q3 24
8.0%
54.4%
Q2 24
5.6%
62.9%
Net Margin
AMKR
AMKR
MPLX
MPLX
Q1 26
4.9%
Q4 25
9.1%
49.1%
Q3 25
6.4%
63.2%
Q2 25
3.6%
44.9%
Q1 25
1.6%
46.2%
Q4 24
6.5%
45.9%
Q3 24
6.6%
44.6%
Q2 24
4.6%
52.6%
EPS (diluted)
AMKR
AMKR
MPLX
MPLX
Q1 26
$0.33
Q4 25
$0.68
Q3 25
$0.51
Q2 25
$0.22
Q1 25
$0.09
Q4 24
$0.43
Q3 24
$0.49
Q2 24
$0.27

Balance Sheet & Financial Strength

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

Metric
AMKR
AMKR
MPLX
MPLX
Cash + ST InvestmentsLiquidity on hand
$1.8B
$2.1B
Total DebtLower is stronger
$1.3B
$24.2B
Stockholders' EquityBook value
$4.6B
Total Assets
$8.3B
$43.0B
Debt / EquityLower = less leverage
0.28×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMKR
AMKR
MPLX
MPLX
Q1 26
$1.8B
Q4 25
$2.0B
$2.1B
Q3 25
$2.1B
$1.8B
Q2 25
$2.0B
$1.4B
Q1 25
$1.6B
$2.5B
Q4 24
$1.6B
$1.5B
Q3 24
$1.5B
$2.4B
Q2 24
$1.5B
$2.5B
Total Debt
AMKR
AMKR
MPLX
MPLX
Q1 26
$1.3B
Q4 25
$24.2B
Q3 25
$24.1B
Q2 25
$19.7B
Q1 25
$19.7B
Q4 24
$19.3B
Q3 24
$19.3B
Q2 24
$19.2B
Stockholders' Equity
AMKR
AMKR
MPLX
MPLX
Q1 26
$4.6B
Q4 25
$4.5B
Q3 25
$4.3B
Q2 25
$4.2B
Q1 25
$4.2B
Q4 24
$4.1B
Q3 24
$4.2B
Q2 24
$4.0B
Total Assets
AMKR
AMKR
MPLX
MPLX
Q1 26
$8.3B
Q4 25
$8.1B
$43.0B
Q3 25
$8.2B
$43.2B
Q2 25
$7.7B
$37.8B
Q1 25
$6.9B
$39.0B
Q4 24
$6.9B
$37.5B
Q3 24
$7.0B
$38.5B
Q2 24
$6.9B
$38.4B
Debt / Equity
AMKR
AMKR
MPLX
MPLX
Q1 26
0.28×
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24

Cash Flow & Capital Efficiency

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

Metric
AMKR
AMKR
MPLX
MPLX
Operating Cash FlowLast quarter
$145.1M
$1.5B
Free Cash FlowOCF − Capex
$782.0M
FCF MarginFCF / Revenue
31.9%
Capex IntensityCapex / Revenue
29.0%
29.1%
Cash ConversionOCF / Net Profit
1.75×
1.24×
TTM Free Cash FlowTrailing 4 quarters
$4.1B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMKR
AMKR
MPLX
MPLX
Q1 26
$145.1M
Q4 25
$644.5M
$1.5B
Q3 25
$168.5M
$1.4B
Q2 25
$258.5M
$1.7B
Q1 25
$24.1M
$1.2B
Q4 24
$537.6M
$1.7B
Q3 24
$164.2M
$1.4B
Q2 24
$224.8M
$1.6B
Free Cash Flow
AMKR
AMKR
MPLX
MPLX
Q1 26
Q4 25
$212.4M
$782.0M
Q3 25
$-77.9M
$905.0M
Q2 25
$112.3M
$1.4B
Q1 25
$-55.7M
$979.0M
Q4 24
$251.9M
$1.4B
Q3 24
$-31.3M
$1.1B
Q2 24
$58.4M
$1.4B
FCF Margin
AMKR
AMKR
MPLX
MPLX
Q1 26
Q4 25
11.2%
31.9%
Q3 25
-3.9%
36.8%
Q2 25
7.4%
60.9%
Q1 25
-4.2%
39.8%
Q4 24
15.5%
56.6%
Q3 24
-1.7%
48.4%
Q2 24
4.0%
60.0%
Capex Intensity
AMKR
AMKR
MPLX
MPLX
Q1 26
29.0%
Q4 25
22.9%
29.1%
Q3 25
12.4%
21.4%
Q2 25
9.7%
12.8%
Q1 25
6.0%
10.9%
Q4 24
17.5%
12.7%
Q3 24
10.5%
11.9%
Q2 24
11.4%
9.4%
Cash Conversion
AMKR
AMKR
MPLX
MPLX
Q1 26
1.75×
Q4 25
3.75×
1.24×
Q3 25
1.33×
0.92×
Q2 25
4.75×
1.64×
Q1 25
1.14×
1.10×
Q4 24
5.09×
1.51×
Q3 24
1.34×
1.35×
Q2 24
3.36×
1.32×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AMKR
AMKR

Advanced products (1)$1.4B81%
Mainstream products (2)$313.0M19%

MPLX
MPLX

Services$746.0M30%
Other$675.0M28%
Products$492.0M20%
Nonrelated Party$186.0M8%
Related Party$151.0M6%
Crude Oil And Products Logistics$104.0M4%
Service Other$56.0M2%
Natural Gas And NGL Services$41.0M2%

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