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Sixth Street Specialty Lending

TSLX
54
Asset Management · Financial Services
Price
$19.10
+0.41 (+2.19%)
Market Cap
$1.81B
Exchange
New York Stock Exchange
Winston Score
54
Winston is curious
Mixed quality — meaningful strengths and weaknesses.
Data as of Aug 9, 2026 · filings through Jun 30, 2026

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)

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.

Winston Score History

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Score breakdown

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Quality

Gross Margin
100.0%
Premium pricing power — 100.0% gross margin
Operating Margin
43.1%
Excellent — 43.1% operating margin
ROCE
1.2%
Weak — 1.2% 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 YoY
-11.4%
Shrinking sales (-11.4% YoY)
EPS YoY
-52.5%
Earnings shrinking (-52.5% YoY)

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

EPS Consistency
2/8 quarters
Earnings rarely grow — volatile business

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Cash Flow

Cash Conversion
181%
Turns 181% of profit into real cash
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

Debt / Equity
1.24
Elevated debt (1.24)
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

P/E Ratio (TTM)
20.1x
Growth-priced — P/E 20.1

P/E above the market average. People are paying up for expected growth.

P/E vs Forward
+9.9
GROWING
Earnings expected to grow meaningfully — cheaper on forward P/E (20.1 → 10.2)

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Dividends

Dividend Yield
10.79%
Healthy income — 10.79% yield

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

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

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