MAIN vs TSLX: Correlation
Main Street Capital Corporation (MAIN) and Sixth Street Specialty Lending, Inc. (TSLX) show a strong relationship: their 3-year correlation of weekly returns is 0.69.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MAIN and TSLX?
On 3 years of weekly data the MAIN/TSLX correlation comes out at 0.69, strong. Recent behaviour matches the longer record: 0.66 over 1 year against 0.69 over 3. The 5-year figure is 0.68, and annualized covariance runs at 278.1 %².
By 3-year correlation, TSLX places #5 of the 12 assets tracked against MAIN. On 12-month performance MAIN holds a 12.5-point edge, -2.5% against -15.0%.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
MAIN vs TSLX: side by side
| MAIN (Main Street Capital Corporation) | TSLX (Sixth Street Specialty Lending, Inc.) | |
|---|---|---|
| 1-year return | -2.5% | -15.0% |
| 5-year return | +106.5% | +35.2% |
| Volatility (ann.) | 19.6% | 20.5% |
| Beta vs S&P 500 | 0.69 | 0.60 |
| Max drawdown (3Y) | -22.4% | -29.0% |
| Market cap | $5.5B | $1.8B |
| P/E (trailing) | 11.7 | 19.9 |
| Dividend yield | 5.29% | 10.04% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | MAIN | TSLX |
|---|---|---|
| 2022 | -11.4% | -16.4% |
| 2023 | +28.2% | +35.3% |
| 2024 | +47.3% | +8.8% |
| 2025 | +10.7% | +11.5% |
| 2026 | +1.9% | -9.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MAIN and TSLX good diversifiers for each other?
Somewhat, no more. With 0.69 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between MAIN and TSLX?
The MAIN/TSLX correlation stands at 0.69 on a 3-year window (1 year: 0.66, 5 years: 0.68), computed from weekly returns as of 2026-08-27.
Is TSLX a good diversifier for MAIN?
Somewhat, no more. With 0.69 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.69 mean?
On the −1 to +1 scale, 0.69 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/main-vs-tslx.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/main-vs-tslx/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: MAIN correlations · TSLX correlations
