Jonathan Lewinsohn – Credit Microcycles at Diameter (EP.484)

Episode Summary

Executive Summary: Jonathan Lewinson of Diameter Capital argues that distressed-credit opportunities increasingly arise in "microcycles"—industry-specific disruptions driven by debt plus technology or policy change. He explains Diameter’s integrated credit platform, highlights opportunities in software, housing, telecom, chemicals, healthcare, AI infrastructure, and IG/private credit, and stresses macro discipline, repeat-player behavior, and careful risk management.

Main Topics: Diameter’s platform evolution and integrated credit model (Priority: 5/5): Lewinson describes how Diameter grew from hedge fund and dislocation investing into a broader but tightly integrated platform including CLOs, direct lending, and capital solutions, all designed to complement rather than cannibalize one another. Private credit, direct lending, and capital solutions (Priority: 5/5): He frames direct lending as a durable and now underrated asset class, while capital solutions address overlevered sponsor-backed companies that need bridge financing, relief, or restructuring support. Microcycles as the best distressed opportunity set (Priority: 5/5): A central thesis is that the best distressed opportunities come from industry-specific microcycles—sectors with lots of debt facing technological disruption or policy volatility—rather than broad economic recessions. AI, software disruption, and data-center financing (Priority: 5/5): Lewinson argues AI is creating both risk and opportunity: software businesses with standardized workflows may be vulnerable, while infrastructure financing for hyperscaler-backed data centers and power is a key opportunity. Sector-specific views: housing, telecom, chemicals, healthcare (Priority: 4/5): He outlines microcycle opportunities in housing (frozen turnover, rate sensitivity), telecom (fiber/fixed wireless transition), chemicals (China-driven capacity and competition), and healthcare (policy volatility and rising cost pressure). Creditor competition, co-ops, and distressed investing discipline (Priority: 4/5): He discusses changing norms in restructurings, the rise of cooperative creditor agreements, and the need to understand documentation, voting thresholds, and repeat-player dynamics. IG market growth and structured credit/ABF risks (Priority: 4/5): Lewinson is active in investment-grade and asset-backed finance, especially insurance-driven demand for yield, but warns about “stumps” and residual risk in overly structured products.

Key Arguments: Microcycles create the best distressed opportunities because they combine leverage with localized technological or policy shocks, forcing industries to work through change rather than disappear entirely. Private credit is not a fad; direct lending has matured into a core levered-finance tool that benefits borrowers, lenders, and allocators when paired with proper liability matching and risk management. Capital solutions are increasingly needed for 2021-2022 vintage sponsor deals that were underwritten with low coupons and high leverage but cannot refinance at today’s rates. Software is a prime area of concern because AI can replace standardized workflow/data functions, and legacy providers may be vulnerable to AI-native competitors. AI infrastructure finance is attractive when the lender is financing a box or amortizing asset backed by a hyperscaler guarantee; residual chip risk is much harder to underwrite. Housing is a coiled spring: transaction volume is frozen by low-rate mortgage lock-in, and once rates fall, turnover and renovation-linked demand may rebound sharply. Telecom remains in transition as fixed wireless and fiber reshape broadband; legacy coaxial assets and spectrum holders face renewed pressure. Chemicals may face significant upheaval as China expands base-chemical capacity and moves up the tech stack, pressuring margins and changing competitive dynamics. Healthcare credit requires careful policy awareness because reimbursement and program changes can swing returns, especially for labor-intensive or single-payer-dependent businesses. The firm’s edge comes from being a repeat player across distressed and performing credit, which improves access, governance leverage, and pricing discipline. Macro cannot be outsourced; every credit investment needs consistent assumptions for GDP, inflation, and demand so the team can compare opportunities across sectors. Scale matters less than relevance: Diameter intentionally caps some vehicles to preserve access, flexibility, and the ability to invest in the best deals.

Data Points: Assets under management: $25 billion - Diameter manages across hedge fund, dislocation, CLO, and direct lending strategies. Firm founding year: 2017 - Diameter Capital Partners was founded by Jonathan Lewinson and Scott Goodwin in 2017. Time spent on investing: 80% - Lewinson says about 80% of his time is spent reviewing investments. Time spent on business/investor relations: 20% - He says the remaining time is on investors and business operations. CLO deals: Deal 16 - Diameter’s CLO business had reached approximately its 16th deal at the time of the interview. European CLO warehouses: 4 - He notes four CLO deals in Europe in warehouse. Direct lending deal count: 70+ deals - Diameter had done more than 70 direct lending deals over nearly three years. Direct lending track record: No defaults (to date) - Lewinson says the team is proud of having no defaults so far, while noting the track record is still limited. U.S. existing home sales: About 4 million - He cites existing home sales falling to around 4 million due to mortgage-rate lock-in. Historic existing home sales range: 5.0-5.5 million - He contrasts current sales with the prior average range. Commercial healthcare cost growth: 7.5% - He cites commercial healthcare costs rising 7.5%. Employer healthcare cost growth: 7% - He cites employer healthcare payments rising 7%. Broadband growth from fixed wireless: 150% of growth last year - He says fixed wireless accounted for 150% of broadband growth because of overlaps with cable/fiber changes. Direct lending exposure to software: ~30% of the market - Lewinson says roughly 30% of direct lending is in software across the market. Diameter software exposure target: Sub-10% - Diameter keeps its direct lending exposure in software below 10%. College graduate unemployment: Almost 9% - He references high unemployment among recent college grads in discussing AI and the labor market. Insurance spread pickup: 50-200 bps - He says insurance solutions can provide 50, 75, 100, or 200 basis points of extra spread over IG-like assets.

Pivotal Quotes: "What it means is the best opportunity for distressed has been microcycles." — Jonathan Lewinson: He is defining his core investment framework for distressed credit. "We think that Wall Street is getting a little short on places to stick the stumps." — Jonathan Lewinson: He is warning about the residual risk left behind in structured insurance/ABF transactions. "If you see us running a Chinese app equities business one day, you should give me a call and say, how does that fit in?" — Jonathan Lewinson: He is explaining Diameter’s discipline around staying within its core competencies.

Implications: For investors, the message is to focus on sector-specific disruption, not just macro recession risk. Credit alpha will likely come from underwriting business quality, debt structure, and AI/policy transitions with precision rather than from broad beta exposure.