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Sixth Street Specialty Lending

TSLX
55
Asset Management · Financial Services
Price
$18.79
+0.02 (+0.11%)
Market Cap
$1.79B
Exchange
New York Stock Exchange
Winston Score
55
Winston is curious
A decent business — some strong pillars, some weaker.
Data as of Aug 23, 2026 · filings through Jun 30, 2026
How the score breaks down
Quality
Strong
Growth
Weak
Cash Flow
Exceptional
Stability
Mixed
Valuation
Strong
Dividends
Exceptional

Share count rising — dilution

+21.9% over 4y

The company has issued more shares over this period, which dilutes each existing shareholder’s stake.

Diluted shares outstanding: 77.7M (2021) → 94.7M (2025)

Winston Score History

The full picture

Sixth Street Specialty Lending is a business development company (BDC) that lends money to mid-sized private businesses that can't easily borrow from traditional banks. It focuses on companies with annual revenues typically between $50 million and $1 billion, providing loans to help them grow, make acquisitions, or fund operations. It is managed by Sixth Street Partners, a large alternative asset manager with over $75 billion in assets.

The company makes money by charging interest on the loans it makes, keeping the difference between its borrowing costs and what it earns from borrowers. It operates primarily in the United States and had a portfolio of roughly $3 billion in loans as of recent periods. Its competitive edge comes from Sixth Street's broad deal-sourcing network and credit expertise, which helps it find and evaluate lending opportunities. The main risk is rising loan defaults if economic conditions weaken, which could reduce income and push down the value of its portfolio.

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Score breakdown

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Quality

Profit per sale
Gross Margin
100.0%
Premium pricing power — 100.0% gross margin
Profit after running costs
Operating Margin
43.1%
Excellent — 43.1% operating margin
Return on the money invested
ROCE
4.1%
Weak — 4.1% return on capital

ROIC between 0% and 5%. They earn a few cents back per dollar invested in the business.

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Growth

Sales growth
Sales YoY
-11.4%
Shrinking sales (-11.4% YoY)
Profit growth
EPS YoY
-52.5%
Earnings shrinking (-52.5% YoY)

Earnings per share down more than 10%. Either a bad year, or a real decline.

How steady the profit is
EPS Consistency
2/8 quarters
Earnings rarely grow — volatile business

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Cash Flow

Profit that turns into cash
Cash Conversion
181%
Turns 181% of profit into real cash
Spare cash per sale
FCF Margin
49.9%
Converts sales into free cash efficiently (49.9%)

Free cash flow margin above 20%. Out of every $100 in sales, more than $20 is real cash they keep.

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Stability

What it owes vs what it owns
Debt / Equity
1.24
Elevated debt (1.24)
Covers its interest
Interest Cover
1.80x
Dangerous — barely covers interest (1.8x)

Interest coverage between 1 and 3. Profits cover interest, but with little room to spare.

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Valuation

Price vs profit
P/E Ratio (TTM)
19.8x
Fair value — P/E 19.8

P/E in the normal range. Price is roughly $15 for every $1 of yearly profit.

Cheaper or dearer next year
P/E vs Forward
+9.6
GROWING
Earnings expected to grow meaningfully — cheaper on forward P/E (19.8 → 10.2)

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Dividends

Dividend
Dividend Yield
10.79%
Healthy income — 10.79% yield

Yield above 6% — often a flag the market is pricing in a cut.

Dividend record
Dividend Growth
+35.0%
Dividend growing fast (35.0% YoY)

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