How to Read a BDC's NAV Markdown Before You Panic: A Checklist

In January 2026, BlackRock TCP Capital Corp. (TCPC) filed an off-cycle disclosure warning that its net asset value per share would fall approximately 19% in a single quarter, from $8.71 to between $7.05 and $7.09. That announcement sent shares down 13% in one trading session. By March 31, 2026, NAV had declined further to $6.72. Federal prosecutors from the Manhattan US Attorney's office began examining the fund's valuation practices, at least three derivative lawsuits followed, and CEO Phil Tseng resigned August 31, 2026. Citywire reported that by August 2026, TCPC's stock traded at roughly a 36% discount to NAV. What you do in the first 48 hours after a markdown disclosure, whether you open the 10-Q or reach for the sell button, shapes your outcome more than the markdown itself.

What a BDC Is and Why NAV Markdowns Happen

A Business Development Company is an SEC-regulated, publicly traded vehicle that lends to small and mid-market companies that cannot access standard bank financing. Congress created the structure in 1980 under the Investment Company Act. BDCs must distribute at least 90% of their taxable income as dividends, producing yields that typically run 9% to 12%. In exchange, you own a levered portfolio of private loans, most with no observable public market price.

That last fact explains why NAV markdowns define the asset class. Because most BDC loans are Level 3 assets under fair-value accounting, the manager's internal valuation model, reviewed by a third-party firm and approved by the board, sets the carrying price. When a borrower misses a payment, restructures, or files for bankruptcy, the board writes the loan's carrying value down to expected recovery. That write-down flows directly to net asset value per share.

A markdown is not a default, and it is not necessarily permanent. Some loans marked to 70 cents on the dollar recover to par. Others go to zero. The question is not "why did NAV fall?" but "what caused it, how concentrated is the damage, and did management acknowledge it as problems developed or only after losses became unavoidable?"

The TCPC Case: Concentrated, Not Systemic

TCPC's Q4 2025 markdown illustrates the most dangerous type of NAV event: a concentrated write-down that arrived with almost no public warning after a period of reassuring management commentary.

On November 6, 2025, TCPC reported a Q3 NAV of $8.71 per share and declared a $0.25 quarterly dividend. Three days earlier, according to analysis by Unicus Research, HomeRenew Buyer Inc., the entity behind the Renovo Home Partners remodeling brand, had filed Chapter 7 bankruptcy in Delaware. Bloomberg had reported that BlackRock funds were still marking that Renovo debt at par through September 2025. Weeks after the Chapter 7 filing, the mark went to zero.

Eleven weeks after the November earnings report, TCPC disclosed a Q4 NAV of $7.07, a fall of 18.8% in a single quarter, and cut the dividend 32% from $0.25 to $0.17. Company filings showed roughly six portfolio companies drove approximately 67% of that NAV decline. A subsequent shareholder lawsuit noted that non-accrual debt had climbed to 14.4% of portfolio value at cost from 3.7% a year prior, a quadrupling that occurred while management publicly characterized credit quality as improving.

The cause was not a rate move or a sector-wide credit event. Two categories drove the damage: the Renovo bankruptcy and a cluster of struggling e-commerce aggregator borrowers. A rate-driven markdown typically reverses as conditions normalize. A concentrated markdown tied to specific failed underwriting decisions does not, and it accumulates if other positions in the same sectors carry similar unrecognized losses.

In May 2026, Fortune, citing Bloomberg's reporting, confirmed that the Manhattan US Attorney's office had been seeking information about TCPC's valuation practices, with executives questioned as part of the inquiry. Phil Tseng resigned August 31, 2026. Jason Mehring was named CEO and board chair effective September 2, 2026, per an SEC Form 8-K the company filed that week.

Step One: Find the Non-Accrual Percentage and Read It Two Ways

Every publicly traded BDC reports non-accrual loans, the loans where the borrower has stopped paying interest and the BDC has stopped recognizing that interest as income, in its quarterly earnings release and in granular detail inside the Form 10-Q. You can pull any BDC's filings free from SEC EDGAR by searching the company name or ticker.

Pull that number two ways. BDCs report non-accruals as a percentage of fair value and as a percentage of amortized cost. Fair value shrinks as loans are marked down, which means a rising fair-value non-accrual ratio can look flat or improving while the cost-basis ratio keeps climbing. The gap between those two figures tells you whether management has been recognizing losses as problems develop or deferring them.

As a baseline, the industry median non-accrual rate among listed BDCs ran at approximately 2.8% of portfolio fair value in Q1 2026, compared with a 1.3% to 1.4% range that prevailed through most of 2023, according to data cited in AIN's non-accrual guide. A ratio below 2% of fair value is unremarkable for a diversified portfolio. A ratio above 4% warrants a detailed read. A ratio climbing from 3.7% to 14.4% at cost over one year without corresponding public disclosure is the red flag TCPC carried into January 2026.

Track the percentage across four consecutive quarters, noting whether new borrower names appear each quarter (breadth of stress) or the same names recur at lower values (depth of a contained problem).

Step Two: Is the Markdown Broad or Concentrated?

The first question after any markdown: how many borrowers drove the decline?

A broad markdown happens when rates move across the economy and the present value of loans falls for the entire portfolio at once. The 2022 rate-driven NAV compression across the BDC sector is the textbook example. Most funds recovered as rates peaked and no single borrower caused it.

A concentrated markdown, where six portfolio companies drive 67% of the NAV decline, is a different category. It tells you the fund made specific lending decisions in specific sectors that did not hold up. It raises the question of whether other positions with the same PE sponsor or in the same sectors carry similar unrecognized losses not yet reflected in the schedule of investments.

To identify the type, read the Management Discussion and Analysis section of the 10-Q, where management must disclose the primary drivers of NAV change. Rate movements portfolio-wide indicate a broad event. Named companies or sectors indicate concentration. If the language is vague, pull the Schedule of Investments and compare position fair values to the prior quarter to find which loans moved the most.

Step Three: Red Flags That Warrant a Position Review

TCPC's 2025-2026 sequence demonstrates all four signals that should trigger a deeper review, and sometimes an exit decision, before quarterly results confirm what the data already shows.

• Rapid leadership turnover. A CEO departure during or after a major markdown period signals the board has lost confidence in the prior strategy, even when the company describes it as voluntary. TCPC's Phil Tseng stepped down eight months after the January 2026 disclosure. Any change in key BDC personnel must appear in SEC Form 8-K within four business days, so set an alert.
• Regulatory investigation disclosures. When a government inquiry appears in risk factors or subsequent event footnotes, the market has typically already moved. Watch for first-time disclosure of language like "we have received requests for information from regulatory authorities" in the 10-Q. That sentence is a legally significant disclosure, not a standard boilerplate phrase.
• Markdown speed versus loan vintage. One TCPC lawsuit alleged that approximately 91% of the Q4 2025 NAV loss came from loans underwritten in 2021 or earlier, loans that had been deteriorating since 2022, yet management characterized the portfolio as stabilizing through November 2025. A sudden large markdown attributed to "recent developments" at a fund holding 3-to-4-year-old loans deserves skepticism about what the manager knew and when.
• Non-accrual numbers that diverge from stated narrative. If the cost-basis non-accrual percentage is climbing while press releases describe improving credit quality, trust the 10-Q numbers. They require board attestation. The press release language does not carry the same legal weight or verification requirement.

What a Healthy Markdown Pattern Looks Like

For comparison, Blackstone Secured Lending Fund (BXSL) reported non-accrual loans at 1.8% of fair value in Q2 2026, down from 3.1% the prior quarter. Ares Capital Corporation (ARCC), the largest publicly traded BDC with a portfolio exceeding $29 billion, has historically kept non-accruals below 2% of fair value through multiple credit cycles, with markdowns disclosed quarterly as problems develop rather than announced off-cycle as sudden surprises.

Healthy BDC markdowns are gradual, disclosed alongside specific borrower context, and consistent with the overall credit cycle. When a BDC's NAV falls sharply while similar funds hold steady, the central question is not whether there is a problem. It is how long the manager knew before you did.

BDC Health-Check Checklist

Check Item	What to Look For	Where to Find It
Non-accrual rate, fair value	Below 2% unremarkable; above 4% warrants scrutiny; track 4-quarter trend	Quarterly earnings release; 10-Q Schedule of Investments
Non-accrual rate, cost basis	Wide gap vs. fair-value rate means losses already recognized; narrow or rising gap may signal deferred write-downs	10-Q Schedule of Investments footnotes
Markdown breadth	Rate-driven: affects full portfolio. Concentrated: 5-10 names drive most of the decline. Ask how many positions drove the quarter's NAV change.	MD&A in 10-Q; earnings call transcript
Loan vintage concentration	Heavy 2021-2022 vintages carry elevated refinancing and credit risk as those loans mature	10-Q Schedule of Investments; investor presentations
Leadership changes	CEO or CIO departures during or after markdown periods are elevated risk signals regardless of stated reason	SEC Form 8-K on EDGAR; company investor relations page
Regulatory disclosures	First-time "requests for information from regulatory authorities" language in risk factors or subsequent events	10-Q and 10-K risk factors; subsequent events footnote
Debt-to-equity ratio	Well-managed BDCs target 1.0x-1.25x; above 1.4x leaves little buffer before forced asset sales	Capital resources section of 10-Q
PIK income percentage	Below 6% of total investment income is normal; above 10-15% signals borrowers paying interest in kind rather than cash	Income statement in 10-Q; MD&A income section
Dividend coverage	Net investment income per share should equal or exceed the declared dividend; below 1.0x coverage means the payout is not fully supported by portfolio income	10-Q income statement; earnings press release NII table

Frequently Asked Questions

Where do I find a BDC's quarterly Schedule of Investments and 10-Q?

Every publicly traded BDC files its 10-Q with the SEC within 45 days of quarter-end. Pull it free from SEC EDGAR by searching the company name or ticker. The Schedule of Investments, which lists every loan with borrower name, industry, and current fair value, appears midway through the filing. Most BDCs also post the 10-Q on their own investor relations page within hours of the SEC timestamp.

What is the difference between a BDC markdown and a default?

A markdown is the board's reduction in a loan's carrying value to reflect estimated recovery. A default is a contractual event triggered by the borrower, such as a missed interest payment. Loans can be marked down before a formal default if the manager anticipates trouble, and they can stay on accrual at a reduced fair value if both parties agree to modified terms. TCPC's Renovo position was marked at par through September 2025 and moved to zero after the Chapter 7 filing, one quarter after the bankruptcy was publicly filed.

Should I sell a BDC position immediately after a large markdown?

That depends on whether the markdown is concentrated or broad, whether management disclosed it promptly or it contradicted prior guidance, and whether additional losses may remain undisclosed. A concentrated surprise markdown paired with rising non-accruals at cost and vague commentary warrants a full position review. A broad, rate-driven markdown with transparent quarterly disclosures and stable non-accruals may require no action at all.

What should I look for in a BDC quarterly earnings call or investor letter?

Watch for shifts in language. If a prior quarter's call named specific stressed positions and the current call uses only general terms like "continued stabilization," that change in specificity is a signal. Also note first-time fee waiver disclosures. BlackRock waived one-third of its management fee at TCPC for the quarter ending with the January 2026 disclosure, a concrete sign the adviser internally acknowledged that performance did not justify standard compensation.

Author Disclosure: Jeff Barnes, MBA has no personal position in any company, fund, or platform named in this article. Angel Investors Network has no current commercial relationship with any party mentioned. AIN provides marketing and education services, not investment advice. Past performance does not guarantee future results. All investments involve risk, including loss of principal.