Oaktree Specialty Lending Corp (OCSL) stock intrinsic value fair value estimate & owner earnings analysis

Oaktree Specialty Lending is a business development company: a publicly traded fund that makes loans to mid-sized private companies, mostly first-lien senior secured loans (about 86% of the portfolio at September 30, 2025, plus loans to two joint-venture funds, some subordinated debt and small equity positions). It has no employees of its own; Oaktree Capital Management runs it for a base fee of 1.00% of gross assets and an incentive fee on income. About 91% of its loans pay floating interest rates. The company borrows roughly $1.04 of debt for every $1 of shareholder equity (about $1.44 billion of debt against $1.38 billion of net assets at June 30, 2026). Net asset value was $15.70 per share at June 30, 2026. How we measured earnings. For a lender like this, reported operating cash flow mostly reflects loans being bought and repaid, so it says little about earning power. We use net investment income (interest and fees earned, less interest paid, management fees and running costs), and we strip out the accounting accruals and reversals of the capital-gains incentive fee, which move with unrealized gains and losses rather than with income. Credit losses are real costs, so we charge them separately in each case below. Under Oaktree (which took over in October 2017), net investment income per share (adjusted for the 1-for-3 reverse split in January 2023) ran from $1.28 in fiscal 2018 to a peak of $2.51 in fiscal 2023, then fell to $2.18 in 2024 and $1.77 in 2025. The median of those eight years is about $1.95. That median is too high for today, though, because two conditions that lifted it have ended: the 2023-2024 peak in short-term interest rates, and fee waivers from Oaktree. In fiscal 2025 alone Oaktree waived $20.4 million of incentive fees and $0.9 million of base fees, worth about $0.25 per share. Without those waivers fiscal 2025 would have been about $1.52. The first three quarters of fiscal 2026 produced $1.18 per share, about $0.39 a quarter, with the June quarter at $0.37. So we set normal earning power at about $1.52 per share, not the historical median. Net investment income fell 19% in fiscal 2025. Our base case assumes a further 14% drop in year one, and the nine months already reported support that. The credit record is what matters most. Net investment income is paid out as dividends, so losses on loans come straight out of net asset value. NAV per share fell from $21.84 in September 2021 to $15.70 in June 2026. Realized and unrealized losses averaged about $1.40 per share a year from fiscal 2022 through June 2026. Over the fuller period from fiscal 2020, which includes the COVID drop and the 2021 recovery, they averaged about $0.71 a year. Across the whole Oaktree era they averaged about $0.44 a year. At September 30, 2025, loans to ten companies had stopped paying interest. These made up 6.5% of debt investments at cost (up from 4.9% a year earlier) and 3.0% at fair value. The cases. We credit no growth in any case. The company has been shrinking (investments fell from $3.02 billion in 2024 to $2.74 billion in June 2026), and any growth would need new equity or more borrowing. Distributions are assumed to equal net investment income. Credit losses shrink the capital base each year, and income shrinks with it. We discount at 6%. After year ten we value the business at its remaining net asset value and give it no premium. Our reasoning: over the Oaktree era, the income yield less the long-run loss rate has been close to or slightly above 6%, so the loan book is worth about its net assets as a continuing business. Any excess return depends on an external manager's fees and on lending spreads, which we do not count on. - Bear ($11.19): income stays at the June 2026 quarter's pace (about $1.48 a year) and losses continue for ten years at the fiscal 2022 to 2026 pace of about $1.40 a year. NAV shrinks to about $6 per share by year ten. The debt makes this worse: every dollar of loans lost is a larger share of equity. A 1-point cut in interest rates would cost about $0.11 per share a year, per the company's disclosed sensitivity. - Base ($14.65): income of about $1.52 per share and losses of about $0.75 a year, in line with the full cycle since 2020. That leaves an economic return of roughly 5% on NAV, a little under our 6% rate, so the shares are worth somewhat less than NAV. - Bull ($17.14): income holds at the early fiscal 2026 pace of about $1.60, and losses fall back to the Oaktree-era average of about $0.44 a year. Two things support this. Since October 1, 2025 the incentive fee has been measured over a trailing twelve-quarter period and capped by total return including capital losses, so Oaktree's fee now falls when credit losses rise. And Oaktree's record from 2018 to 2021 shows losses at that level. What would make this wrong: loans that have stopped paying could turn into realized losses faster than the base case allows. Our estimate depends heavily on the loss rate. Each $0.25 a year of extra losses cuts the base case value by roughly $1.60 per share. On the upside, credit losses could fall back to pre-2022 levels. Our figures for the June 2026 quarter come from the company's structured financial data, because the full quarterly report text was not available to us. Net assets and income for that quarter tie to that data, but we could not review the notes on non-accrual loans after September 2025.