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Side-by-side financial comparison of Post Holdings, Inc. (POST) and SIRIUS XM HOLDINGS INC. (SIRI). Click either name above to swap in a different company.

SIRIUS XM HOLDINGS INC. is the larger business by last-quarter revenue ($2.2B vs $2.2B, roughly 1.0× Post Holdings, Inc.). SIRIUS XM HOLDINGS INC. runs the higher net margin — 4.5% vs 4.5%, a 0.1% gap on every dollar of revenue. On growth, Post Holdings, Inc. posted the faster year-over-year revenue change (10.1% vs 0.2%). SIRIUS XM HOLDINGS INC. produced more free cash flow last quarter ($536.0M vs $119.3M). Over the past eight quarters, Post Holdings, Inc.'s revenue compounded faster (4.3% CAGR vs 0.7%).

Post Consumer Brands, LLC, also known as Post, is an American consumer packaged goods food manufacturer headquartered in Lakeville, Minnesota.

XM Satellite Radio Holdings Inc. (XM) was one of the three satellite radio (SDARS) and online radio services in the United States and Canada, operated by Sirius XM Holdings. It provided pay-for-service radio, analogous to subscription cable television. Its service included 73 different music channels, 39 news, sports, talk and entertainment channels, 21 regional traffic and weather channels, and 23 play-by-play sports channels. XM channels were identified by Arbitron with the label "XM".

POST vs SIRI — Head-to-Head

Bigger by revenue
SIRI
SIRI
1.0× larger
SIRI
$2.2B
$2.2B
POST
Growing faster (revenue YoY)
POST
POST
+9.9% gap
POST
10.1%
0.2%
SIRI
Higher net margin
SIRI
SIRI
0.1% more per $
SIRI
4.5%
4.5%
POST
More free cash flow
SIRI
SIRI
$416.7M more FCF
SIRI
$536.0M
$119.3M
POST
Faster 2-yr revenue CAGR
POST
POST
Annualised
POST
4.3%
0.7%
SIRI

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
POST
POST
SIRI
SIRI
Revenue
$2.2B
$2.2B
Net Profit
$96.8M
$99.0M
Gross Margin
29.4%
53.1%
Operating Margin
11.0%
10.3%
Net Margin
4.5%
4.5%
Revenue YoY
10.1%
0.2%
Net Profit YoY
-14.6%
-55.4%
EPS (diluted)
$1.71
$0.23

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
POST
POST
SIRI
SIRI
Q4 25
$2.2B
$2.2B
Q3 25
$2.2B
$2.2B
Q2 25
$2.0B
$2.1B
Q1 25
$2.0B
$2.1B
Q4 24
$2.0B
$2.2B
Q3 24
$2.0B
$2.2B
Q2 24
$1.9B
$2.2B
Q1 24
$2.0B
$2.2B
Net Profit
POST
POST
SIRI
SIRI
Q4 25
$96.8M
$99.0M
Q3 25
$51.0M
$297.0M
Q2 25
$108.8M
$205.0M
Q1 25
$62.6M
$204.0M
Q4 24
$113.3M
$222.0M
Q3 24
$81.6M
$-2.5B
Q2 24
$99.8M
$304.0M
Q1 24
$97.2M
$265.0M
Gross Margin
POST
POST
SIRI
SIRI
Q4 25
29.4%
53.1%
Q3 25
26.8%
52.2%
Q2 25
30.0%
52.4%
Q1 25
28.0%
52.0%
Q4 24
30.1%
52.9%
Q3 24
28.6%
53.2%
Q2 24
29.6%
53.5%
Q1 24
29.0%
52.5%
Operating Margin
POST
POST
SIRI
SIRI
Q4 25
11.0%
10.3%
Q3 25
7.5%
22.8%
Q2 25
11.8%
17.1%
Q1 25
9.3%
18.7%
Q4 24
10.8%
20.2%
Q3 24
9.5%
-133.6%
Q2 24
10.4%
23.2%
Q1 24
9.5%
20.2%
Net Margin
POST
POST
SIRI
SIRI
Q4 25
4.5%
4.5%
Q3 25
2.3%
13.8%
Q2 25
5.5%
9.6%
Q1 25
3.2%
9.9%
Q4 24
5.7%
10.1%
Q3 24
4.1%
-113.1%
Q2 24
5.1%
14.0%
Q1 24
4.9%
12.3%
EPS (diluted)
POST
POST
SIRI
SIRI
Q4 25
$1.71
$0.23
Q3 25
$0.91
$0.84
Q2 25
$1.79
$0.57
Q1 25
$1.03
$0.59
Q4 24
$1.78
$2.45
Q3 24
$1.28
$-8.74
Q2 24
$1.53
$0.08
Q1 24
$1.48
$0.07

Balance Sheet & Financial Strength

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

Metric
POST
POST
SIRI
SIRI
Cash + ST InvestmentsLiquidity on hand
$279.3M
$94.0M
Total DebtLower is stronger
$7.5B
$8.6B
Stockholders' EquityBook value
$3.5B
$11.6B
Total Assets
$13.0B
$27.2B
Debt / EquityLower = less leverage
2.16×
0.75×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
POST
POST
SIRI
SIRI
Q4 25
$279.3M
$94.0M
Q3 25
$176.7M
$79.0M
Q2 25
$1.1B
$92.0M
Q1 25
$617.6M
$127.0M
Q4 24
$872.9M
$162.0M
Q3 24
$787.4M
$127.0M
Q2 24
$333.8M
$100.0M
Q1 24
$333.4M
$71.0M
Total Debt
POST
POST
SIRI
SIRI
Q4 25
$7.5B
$8.6B
Q3 25
$7.4B
$9.0B
Q2 25
$7.3B
$10.1B
Q1 25
$6.9B
$10.4B
Q4 24
$6.9B
$10.3B
Q3 24
$6.8B
$10.1B
Q2 24
$6.4B
$9.0B
Q1 24
$6.4B
$8.7B
Stockholders' Equity
POST
POST
SIRI
SIRI
Q4 25
$3.5B
$11.6B
Q3 25
$3.8B
$11.6B
Q2 25
$4.0B
$11.3B
Q1 25
$3.8B
$11.2B
Q4 24
$3.9B
$11.1B
Q3 24
$4.1B
$10.9B
Q2 24
$3.9B
$-2.1B
Q1 24
$4.0B
$-2.4B
Total Assets
POST
POST
SIRI
SIRI
Q4 25
$13.0B
$27.2B
Q3 25
$13.5B
$27.4B
Q2 25
$13.4B
$27.3B
Q1 25
$12.8B
$27.4B
Q4 24
$12.8B
$27.5B
Q3 24
$12.9B
$27.5B
Q2 24
$12.1B
$11.2B
Q1 24
$12.2B
$11.2B
Debt / Equity
POST
POST
SIRI
SIRI
Q4 25
2.16×
0.75×
Q3 25
1.98×
0.78×
Q2 25
1.84×
0.89×
Q1 25
1.81×
0.93×
Q4 24
1.79×
0.93×
Q3 24
1.67×
0.93×
Q2 24
1.62×
Q1 24
1.61×

Cash Flow & Capital Efficiency

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

Metric
POST
POST
SIRI
SIRI
Operating Cash FlowLast quarter
$235.7M
$680.0M
Free Cash FlowOCF − Capex
$119.3M
$536.0M
FCF MarginFCF / Revenue
5.5%
24.4%
Capex IntensityCapex / Revenue
5.4%
6.6%
Cash ConversionOCF / Net Profit
2.43×
6.87×
TTM Free Cash FlowTrailing 4 quarters
$436.0M
$1.2B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
POST
POST
SIRI
SIRI
Q4 25
$235.7M
$680.0M
Q3 25
$301.3M
$430.0M
Q2 25
$225.9M
$546.0M
Q1 25
$160.7M
$242.0M
Q4 24
$310.4M
$679.0M
Q3 24
$235.4M
$240.0M
Q2 24
$272.3M
$514.0M
Q1 24
$249.6M
$308.0M
Free Cash Flow
POST
POST
SIRI
SIRI
Q4 25
$119.3M
$536.0M
Q3 25
$151.6M
$255.0M
Q2 25
$94.9M
$401.0M
Q1 25
$70.2M
$53.0M
Q4 24
$171.4M
$514.0M
Q3 24
$96.2M
$24.0M
Q2 24
$161.5M
$341.0M
Q1 24
$150.9M
$134.0M
FCF Margin
POST
POST
SIRI
SIRI
Q4 25
5.5%
24.4%
Q3 25
6.7%
11.8%
Q2 25
4.8%
18.8%
Q1 25
3.6%
2.6%
Q4 24
8.7%
23.5%
Q3 24
4.8%
1.1%
Q2 24
8.3%
15.7%
Q1 24
7.5%
6.2%
Capex Intensity
POST
POST
SIRI
SIRI
Q4 25
5.4%
6.6%
Q3 25
6.7%
8.1%
Q2 25
6.6%
6.8%
Q1 25
4.6%
9.1%
Q4 24
7.0%
7.5%
Q3 24
6.9%
9.9%
Q2 24
5.7%
7.9%
Q1 24
4.9%
8.0%
Cash Conversion
POST
POST
SIRI
SIRI
Q4 25
2.43×
6.87×
Q3 25
5.91×
1.45×
Q2 25
2.08×
2.66×
Q1 25
2.57×
1.19×
Q4 24
2.74×
3.06×
Q3 24
2.88×
Q2 24
2.73×
1.69×
Q1 24
2.57×
1.16×

Financial Flow Comparison

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

Revenue Breakdown by Segment

POST
POST

Post Consumer Brands Segment$1.1B51%
Pet Food$360.4M17%
Side Dishes$221.5M10%
Weetabix$137.9M6%
Other$122.1M6%
Nut Butters$105.8M5%
Sausage$53.1M2%
Cheeseand Dairy$41.3M2%
Protein Based Shakes$29.3M1%
Bell Ring$18.1M1%

SIRI
SIRI

Subscription And Circulation$1.6B74%
Advertising$491.0M22%
Cost Of Sales Equipment Products And Services$48.0M2%
Other Revenue$28.0M1%

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