Setup

Ares Capital (ARCC) is the largest US BDC at $14B market cap, with a $29.5B average direct-lending portfolio. The Q1 2026 10-Q filed April 28 contains four named software writedowns totaling $170M+. The same software borrowers sit in 7+ peer BDCs whose Q1 2026 10-Qs file May 6 onward. ARCC's marks are the read-ahead.

ARCC outright is sector beta — well-covered, ≈16% idiosyncratic variance, consensus pivoting in real time. The information value of this filing sits at the peers, not at ARCC.

What the filing says

ARCC marked four named software positions down in Q1 2026 (per Schedule of Investments and MD&A):

• Cornerstone OnDemand (HR/LMS, "Sunshine Software" entity): -$63M
• Symplr Software (healthcare workflow): -$58M
• Digicert ("Dcert Buyer," PKI/cybersecurity): -$32M
• Pluralsight (tech training): -$17M

Net unrealized losses widened to -$412M in Q1 2026 vs -$63M in Q1 2025 — ≈6x off a small base, but the directional signal is clear. Software & Services allocation fell from 23.8% to 21.7% of the portfolio in one quarter, a ≈$620M reduction. Adonis Bidco (IP management software) sits at $237M with a 2.88% PIK component — not marked down this quarter, but worth tracking in Q2.

Cash and book performance bifurcated: non-accruals at FAIR VALUE held flat at 1.2%, but at AMORTIZED COST rose 1.8% → 2.1%. Grade 2 (elevated scrutiny) names rose 27 → 31. PIK interest income rose $40M → $45M (borrowers deferring cash interest). NAV declined 1.8% to $19.59. NII per share $0.55 (+1.9% YoY), dividend $0.48 maintained at 1.15x coverage; $988M spillover buffer ($1.38/share).

Originations were defensive: net new commitments $70M vs $596M Q1 2025 (-88%). No equity via ATM. No buybacks despite stock at 5% discount to NAV. Debt/equity 1.13x against 1.25x ceiling; asset coverage 188% (well above 150% floor). Investment backlog $1.8B as of April 23.

July 2026 Notes ($1.0B at 2.15%) mature July 15. Refinancing at current rates (≈5%+) adds ≈$28-32M annual interest expense.

What the market thinks

ARCC closed April 23 at $18.02, a 5% discount to NAV. Q1 2026 trading range: -10.92% to +7.15% to NAV. In Q1 2025, the stock sustained 7-20% PREMIUM. The market repriced the BDC NAV regime in one year from premium to discount.

Peer divergence already started: OBDC -12% YTD vs ARCC -3.8%. RSI 57 leaves room. GSBD options tape April 28: P/C 41.5x, IV inverted, 20 puts vs 3 calls — informed positioning ahead of the May 7 print.

BCRED Q1 2026 (already filed) provides independent corroboration: non-accruals at FV jumped 0.4% → 1.4% (3.5x worse), driven by Medallia and ACI Group software markdowns. Different names, same quarter, same drivers.

Why the gap exists

Three pieces of Feb 2026 evidence framed BDC software risk as "narrative ahead of reality" — implying a 6-12 month lag before actual marks moved. The Q1 disclosures show the lag is 3-4 months. ARCC's marks set the floor for peer holders that have not yet disclosed.

Cross-holdings (per most recent peer 10-Q investment schedules):

• Pluralsight: held by OBDC ($69M total), GBDC, TSLX, OCSL, GSBD ($46M, marked at 47c — their #1 unrealized loss contributor 18 months running), TCPC, PFLT
• Cornerstone: concentrated at OBDC ($151.6M 2L marked at 65c Sep 2025) + small NMFC position
• Symplr: GBDC ($24.6M pref at 90c), NMFC ($24.6M pref at 14.65% PIK = distressed terms), PFLT, TSLX
• Digicert: NMFC, MFIC legacy positions; most of the syndicate refinanced into Ares-led $2.4B private deal July 2025

Highest-exposure peer per name: OBDC (Cornerstone), GSBD (Pluralsight), NMFC (Symplr).

Peers are currently trading off Q4 2025 marks. ARCC's Q1 disclosure forces those marks down when peers file. Symplr's CEO change April 13 (Venkat Kavarthapu, ex-Edifecs) followed the markdown decision — LP-driven response to performance deterioration. The disclosure asymmetry, not analytical insight, is the gap. Every primary source cited is public.

The implied structure is a peer pair — short basket of OBDC/GSBD/NMFC against long basket of BDCs without overlap on these four borrowers (BXSL, MAIN, BBDC, KBDC are clean). Construction details and pair regression are out of scope for this memo.

Risks (ranked)

1. ARCC marks aggressive vs peer methodology. Different BDCs use different third-party valuation agents (Houlihan Lokey, Lincoln, Murray Devine). If Ares' methodology is more conservative than peers', ARCC's Q1 marks may not drag peer marks down at all — peers could maintain Q4 marks through Q2 and the disclosure differential never materializes.
2. Smart money already positioned. GSBD options skew suggests informed selling. If OBDC put OI builds 2x by May 1, the read-ahead is already discounted.
3. Sentiment reversal. BDC sector sold off Feb 2026 and partially recovered. A "fears overdone" squeeze pre-May 6 inverts the pattern; Tier 1 (more discounted) rallies more than Tier 3 on short covering.
4. Marks reflect EBITDA underperformance, not credit deterioration. Cornerstone S&P B- stable as of July 2025. If borrowers are paying cash and only EBITDA multiples compressed, marks could reverse on multiple expansion without any credit improvement.
5. Single-name idio on long-leg candidates. A MAIN guidance miss or BXSL surprise non-accrual disrupts the pattern independent of the software thesis.

Implementation gate (not a thesis risk): pair idio variance has not been verified above the 75% Paleologo threshold. If pair regression fails, the structure is sector-ETF-inverse with extra steps and the trade should not be sized.

Catalysts

• May 6 (after close): OBDC Q1 10-Q. Cornerstone $151.6M 2L mark migration + Pluralsight equity. Primary read-ahead test.
• May 7 (after close): GSBD Q1 10-Q. Pluralsight 18-month deterioration story.
• May 8-15: NMFC, GBDC fiscal Q2, OCSL fiscal Q2, TCPC, PFLT prints.
• May 31: All peer Q1 reports done. Disclosure-differential edge fully decayed.
• July 15: ARCC July 2026 Notes mature. Refi terms clarify NII trajectory through 2027.

What would change our mind

• OBDC May 6 prints CLEAN (no software markdowns, NAV stable): the read-ahead premise breaks; ARCC's marks were aggressive, not predictive.
• OBDC put OI doubles by May 1: smart money positioned, edge compressed.
• Cornerstone S&P upgrade or Symplr operational reset under new CEO produces cash-performance recovery: future quarters mark UP, not down.
• Peer buyback resumption at NAV discounts: signals management confidence in marks; reverses the pattern.

Evidence