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Side-by-side financial comparison of Alcoa Corp (AA) and MPLX LP (MPLX). Click either name above to swap in a different company.

Alcoa Corp is the larger business by last-quarter revenue ($3.4B vs $2.5B, roughly 1.4× MPLX LP). MPLX LP runs the higher net margin — 49.1% vs 6.2%, a 42.9% gap on every dollar of revenue. On growth, MPLX LP posted the faster year-over-year revenue change (1.4% vs -1.1%). MPLX LP produced more free cash flow last quarter ($782.0M vs $294.0M). Over the past eight quarters, Alcoa Corp's revenue compounded faster (15.2% CAGR vs 6.2%).

Alcoa Corporation is an American industrial corporation that produces aluminum. According to industry rankings, it is among the largest producers globally. The company operates in 10 countries and is involved in mining, refining, smelting, fabricating, and recycling aluminum products.

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.

AA vs MPLX — Head-to-Head

Bigger by revenue
AA
AA
1.4× larger
AA
$3.4B
$2.5B
MPLX
Growing faster (revenue YoY)
MPLX
MPLX
+2.5% gap
MPLX
1.4%
-1.1%
AA
Higher net margin
MPLX
MPLX
42.9% more per $
MPLX
49.1%
6.2%
AA
More free cash flow
MPLX
MPLX
$488.0M more FCF
MPLX
$782.0M
$294.0M
AA
Faster 2-yr revenue CAGR
AA
AA
Annualised
AA
15.2%
6.2%
MPLX

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AA
AA
MPLX
MPLX
Revenue
$3.4B
$2.5B
Net Profit
$213.0M
$1.2B
Gross Margin
Operating Margin
2.0%
60.5%
Net Margin
6.2%
49.1%
Revenue YoY
-1.1%
1.4%
Net Profit YoY
5.4%
8.5%
EPS (diluted)
$0.80

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
AA
AA
MPLX
MPLX
Q4 25
$3.4B
$2.5B
Q3 25
$3.0B
$2.5B
Q2 25
$3.0B
$2.4B
Q1 25
$3.4B
$2.5B
Q4 24
$3.5B
$2.4B
Q3 24
$2.9B
$2.3B
Q2 24
$2.9B
$2.3B
Q1 24
$2.6B
$2.2B
Net Profit
AA
AA
MPLX
MPLX
Q4 25
$213.0M
$1.2B
Q3 25
$232.0M
$1.6B
Q2 25
$164.0M
$1.1B
Q1 25
$548.0M
$1.1B
Q4 24
$202.0M
$1.1B
Q3 24
$90.0M
$1.0B
Q2 24
$20.0M
$1.2B
Q1 24
$-252.0M
$1.0B
Operating Margin
AA
AA
MPLX
MPLX
Q4 25
2.0%
60.5%
Q3 25
5.6%
73.2%
Q2 25
5.3%
54.9%
Q1 25
19.8%
55.5%
Q4 24
9.7%
55.6%
Q3 24
6.3%
54.4%
Q2 24
3.2%
62.9%
Q1 24
-12.5%
57.6%
Net Margin
AA
AA
MPLX
MPLX
Q4 25
6.2%
49.1%
Q3 25
7.7%
63.2%
Q2 25
5.4%
44.9%
Q1 25
16.3%
46.2%
Q4 24
5.8%
45.9%
Q3 24
3.1%
44.6%
Q2 24
0.7%
52.6%
Q1 24
-9.7%
46.7%
EPS (diluted)
AA
AA
MPLX
MPLX
Q4 25
$0.80
Q3 25
$0.88
Q2 25
$0.62
Q1 25
$2.07
Q4 24
$1.18
Q3 24
$0.38
Q2 24
$0.11
Q1 24
$-1.41

Balance Sheet & Financial Strength

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

Metric
AA
AA
MPLX
MPLX
Cash + ST InvestmentsLiquidity on hand
$1.6B
$2.1B
Total DebtLower is stronger
$2.4B
$24.2B
Stockholders' EquityBook value
$6.1B
Total Assets
$16.1B
$43.0B
Debt / EquityLower = less leverage
0.40×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AA
AA
MPLX
MPLX
Q4 25
$1.6B
$2.1B
Q3 25
$1.5B
$1.8B
Q2 25
$1.5B
$1.4B
Q1 25
$1.2B
$2.5B
Q4 24
$1.1B
$1.5B
Q3 24
$1.3B
$2.4B
Q2 24
$1.4B
$2.5B
Q1 24
$1.4B
$385.0M
Total Debt
AA
AA
MPLX
MPLX
Q4 25
$2.4B
$24.2B
Q3 25
$2.6B
$24.1B
Q2 25
$2.6B
$19.7B
Q1 25
$2.6B
$19.7B
Q4 24
$2.5B
$19.3B
Q3 24
$2.5B
$19.3B
Q2 24
$2.5B
$19.2B
Q1 24
$2.5B
$18.8B
Stockholders' Equity
AA
AA
MPLX
MPLX
Q4 25
$6.1B
Q3 25
$6.3B
Q2 25
$6.1B
Q1 25
$5.8B
Q4 24
$5.2B
Q3 24
$5.3B
Q2 24
$3.9B
Q1 24
$4.0B
Total Assets
AA
AA
MPLX
MPLX
Q4 25
$16.1B
$43.0B
Q3 25
$16.0B
$43.2B
Q2 25
$15.0B
$37.8B
Q1 25
$14.6B
$39.0B
Q4 24
$14.1B
$37.5B
Q3 24
$14.5B
$38.5B
Q2 24
$14.3B
$38.4B
Q1 24
$14.3B
$36.5B
Debt / Equity
AA
AA
MPLX
MPLX
Q4 25
0.40×
Q3 25
0.41×
Q2 25
0.42×
Q1 25
0.44×
Q4 24
0.48×
Q3 24
0.47×
Q2 24
0.63×
Q1 24
0.62×

Cash Flow & Capital Efficiency

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

Metric
AA
AA
MPLX
MPLX
Operating Cash FlowLast quarter
$537.0M
$1.5B
Free Cash FlowOCF − Capex
$294.0M
$782.0M
FCF MarginFCF / Revenue
8.5%
31.9%
Capex IntensityCapex / Revenue
7.0%
29.1%
Cash ConversionOCF / Net Profit
2.52×
1.24×
TTM Free Cash FlowTrailing 4 quarters
$567.0M
$4.1B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AA
AA
MPLX
MPLX
Q4 25
$537.0M
$1.5B
Q3 25
$85.0M
$1.4B
Q2 25
$488.0M
$1.7B
Q1 25
$75.0M
$1.2B
Q4 24
$415.0M
$1.7B
Q3 24
$143.0M
$1.4B
Q2 24
$287.0M
$1.6B
Q1 24
$-223.0M
$1.3B
Free Cash Flow
AA
AA
MPLX
MPLX
Q4 25
$294.0M
$782.0M
Q3 25
$-66.0M
$905.0M
Q2 25
$357.0M
$1.4B
Q1 25
$-18.0M
$979.0M
Q4 24
$246.0M
$1.4B
Q3 24
$-3.0M
$1.1B
Q2 24
$123.0M
$1.4B
Q1 24
$-324.0M
$1.0B
FCF Margin
AA
AA
MPLX
MPLX
Q4 25
8.5%
31.9%
Q3 25
-2.2%
36.8%
Q2 25
11.8%
60.9%
Q1 25
-0.5%
39.8%
Q4 24
7.1%
56.6%
Q3 24
-0.1%
48.4%
Q2 24
4.2%
60.0%
Q1 24
-12.5%
47.7%
Capex Intensity
AA
AA
MPLX
MPLX
Q4 25
7.0%
29.1%
Q3 25
5.0%
21.4%
Q2 25
4.3%
12.8%
Q1 25
2.8%
10.9%
Q4 24
4.8%
12.7%
Q3 24
5.0%
11.9%
Q2 24
5.6%
9.4%
Q1 24
3.9%
11.7%
Cash Conversion
AA
AA
MPLX
MPLX
Q4 25
2.52×
1.24×
Q3 25
0.37×
0.92×
Q2 25
2.98×
1.64×
Q1 25
0.14×
1.10×
Q4 24
2.05×
1.51×
Q3 24
1.59×
1.35×
Q2 24
14.35×
1.32×
Q1 24
1.27×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AA
AA

Aluminum$2.5B72%
Third Party Sales$979.0M28%

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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