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Side-by-side financial comparison of Unum Group (UNM) and Vistra Corp. (VST). Click either name above to swap in a different company.

Vistra Corp. is the larger business by last-quarter revenue ($4.8B vs $3.4B, roughly 1.4× Unum Group). Unum Group runs the higher net margin — 6.9% vs 4.8%, a 2.1% gap on every dollar of revenue. On growth, Vistra Corp. posted the faster year-over-year revenue change (31.2% vs 8.5%). Over the past eight quarters, Vistra Corp.'s revenue compounded faster (23.3% CAGR vs 1.9%).

Unum Group is an American insurance company headquartered in Chattanooga, Tennessee. Founded as Union Mutual in 1848 and known as UnumProvident from 1999–2007, the company is part of the Fortune 500. Unum Group was created by the 1999 merger of Unum Corporation and The Provident Companies and comprises four distinct businesses – Unum US, Unum UK, Unum Poland and Colonial Life. Its underwriting insurers include The Paul Revere Life Insurance Company and Provident Life and Accident Insurance Co...

Vistra may refer to either of two companies:Vistra, a corporate services company based in Hong Kong Vistra Corp, an energy company based in Texas

UNM vs VST — Head-to-Head

Bigger by revenue
VST
VST
1.4× larger
VST
$4.8B
$3.4B
UNM
Growing faster (revenue YoY)
VST
VST
+22.7% gap
VST
31.2%
8.5%
UNM
Higher net margin
UNM
UNM
2.1% more per $
UNM
6.9%
4.8%
VST
Faster 2-yr revenue CAGR
VST
VST
Annualised
VST
23.3%
1.9%
UNM

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
UNM
UNM
VST
VST
Revenue
$3.4B
$4.8B
Net Profit
$232.0M
$233.0M
Gross Margin
Operating Margin
9.9%
Net Margin
6.9%
4.8%
Revenue YoY
8.5%
31.2%
Net Profit YoY
22.7%
-47.2%
EPS (diluted)
$0.55

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
UNM
UNM
VST
VST
Q1 26
$3.4B
Q4 25
$3.2B
$4.8B
Q3 25
$3.4B
$4.8B
Q2 25
$3.4B
$3.8B
Q1 25
$3.1B
$4.3B
Q4 24
$3.2B
$3.7B
Q3 24
$3.2B
$4.3B
Q2 24
$3.2B
$3.6B
Net Profit
UNM
UNM
VST
VST
Q1 26
$232.0M
Q4 25
$174.1M
$233.0M
Q3 25
$39.7M
$652.0M
Q2 25
$335.6M
$327.0M
Q1 25
$189.1M
$-268.0M
Q4 24
$348.7M
$441.0M
Q3 24
$645.7M
$1.9B
Q2 24
$389.5M
$365.0M
Operating Margin
UNM
UNM
VST
VST
Q1 26
Q4 25
6.7%
9.9%
Q3 25
1.6%
21.7%
Q2 25
12.4%
13.7%
Q1 25
7.9%
-2.8%
Q4 24
13.8%
16.4%
Q3 24
15.6%
59.6%
Q2 24
15.3%
22.5%
Net Margin
UNM
UNM
VST
VST
Q1 26
6.9%
Q4 25
5.4%
4.8%
Q3 25
1.2%
13.6%
Q2 25
10.0%
8.7%
Q1 25
6.1%
-6.3%
Q4 24
10.8%
12.0%
Q3 24
20.1%
43.5%
Q2 24
12.0%
10.1%
EPS (diluted)
UNM
UNM
VST
VST
Q1 26
Q4 25
$1.06
$0.55
Q3 25
$0.23
$1.75
Q2 25
$1.92
$0.81
Q1 25
$1.06
$-0.93
Q4 24
$1.91
$1.09
Q3 24
$3.46
$5.25
Q2 24
$2.05
$0.90

Balance Sheet & Financial Strength

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

Metric
UNM
UNM
VST
VST
Cash + ST InvestmentsLiquidity on hand
$2.1M
$785.0M
Total DebtLower is stronger
$3.8M
$15.8B
Stockholders' EquityBook value
$10.9M
$5.1B
Total Assets
$62.7M
$41.5B
Debt / EquityLower = less leverage
0.35×
3.11×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
UNM
UNM
VST
VST
Q1 26
$2.1M
Q4 25
$785.0M
Q3 25
$602.0M
Q2 25
$458.0M
Q1 25
$561.0M
Q4 24
$1.2B
Q3 24
$905.0M
Q2 24
$1.6B
Total Debt
UNM
UNM
VST
VST
Q1 26
$3.8M
Q4 25
$3.8B
$15.8B
Q3 25
$3.5B
$15.8B
Q2 25
$3.5B
$15.5B
Q1 25
$3.5B
$15.4B
Q4 24
$3.5B
$15.4B
Q3 24
$3.5B
$13.9B
Q2 24
$3.5B
$13.9B
Stockholders' Equity
UNM
UNM
VST
VST
Q1 26
$10.9M
Q4 25
$11.1B
$5.1B
Q3 25
$10.9B
$5.2B
Q2 25
$11.3B
$4.8B
Q1 25
$11.2B
$4.8B
Q4 24
$11.0B
$5.6B
Q3 24
$11.0B
$5.4B
Q2 24
$10.5B
$5.6B
Total Assets
UNM
UNM
VST
VST
Q1 26
$62.7M
Q4 25
$63.5B
$41.5B
Q3 25
$63.7B
$38.0B
Q2 25
$62.8B
$38.1B
Q1 25
$62.5B
$38.2B
Q4 24
$62.0B
$37.8B
Q3 24
$64.1B
$37.9B
Q2 24
$62.0B
$39.1B
Debt / Equity
UNM
UNM
VST
VST
Q1 26
0.35×
Q4 25
0.34×
3.11×
Q3 25
0.32×
3.02×
Q2 25
0.31×
3.22×
Q1 25
0.31×
3.20×
Q4 24
0.32×
2.77×
Q3 24
0.32×
2.56×
Q2 24
0.33×
2.49×

Cash Flow & Capital Efficiency

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

Metric
UNM
UNM
VST
VST
Operating Cash FlowLast quarter
$1.4B
Free Cash FlowOCF − Capex
$596.0M
FCF MarginFCF / Revenue
12.4%
Capex IntensityCapex / Revenue
17.4%
Cash ConversionOCF / Net Profit
6.15×
TTM Free Cash FlowTrailing 4 quarters
$1.3B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
UNM
UNM
VST
VST
Q1 26
Q4 25
$357.9M
$1.4B
Q3 25
$-371.8M
$1.5B
Q2 25
$348.0M
$572.0M
Q1 25
$353.6M
$599.0M
Q4 24
$485.8M
$1.4B
Q3 24
$390.0M
$1.7B
Q2 24
$339.1M
$1.2B
Free Cash Flow
UNM
UNM
VST
VST
Q1 26
Q4 25
$320.1M
$596.0M
Q3 25
$-402.6M
$1.0B
Q2 25
$320.1M
$-118.0M
Q1 25
$317.8M
$-169.0M
Q4 24
$453.8M
$923.0M
Q3 24
$352.3M
$1.0B
Q2 24
$311.4M
$698.0M
FCF Margin
UNM
UNM
VST
VST
Q1 26
Q4 25
9.9%
12.4%
Q3 25
-11.9%
21.1%
Q2 25
9.5%
-3.1%
Q1 25
10.3%
-4.0%
Q4 24
14.0%
25.2%
Q3 24
11.0%
23.4%
Q2 24
9.6%
19.4%
Capex Intensity
UNM
UNM
VST
VST
Q1 26
Q4 25
1.2%
17.4%
Q3 25
0.9%
9.6%
Q2 25
0.8%
18.4%
Q1 25
1.2%
18.1%
Q4 24
1.0%
11.7%
Q3 24
1.2%
15.8%
Q2 24
0.9%
13.8%
Cash Conversion
UNM
UNM
VST
VST
Q1 26
Q4 25
2.06×
6.15×
Q3 25
-9.37×
2.25×
Q2 25
1.04×
1.75×
Q1 25
1.87×
Q4 24
1.39×
3.07×
Q3 24
0.60×
0.90×
Q2 24
0.87×
3.28×

Financial Flow Comparison

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

Revenue Breakdown by Segment

UNM
UNM

Premium Income$2.8B83%
Other$561.2M17%

VST
VST

Retail Energy Charge In ERCOT$2.1B43%
Retail Energy Charge In Northeast Midwest$1.2B24%
East Segment$1.1B24%
Hedging Revenue Realized$170.0M4%
Revenue From Other Wholesale Contracts$116.0M2%
Transferable Production Tax Credit Revenues$78.0M2%
West Segment$77.0M2%
Intersegment Sales$25.0M1%

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