AIP Capital and Monroe Capital's $643M Aircraft ABS: What the Tranches Tell You About Aviation as Fixed Income

AIP Capital and Monroe Capital closed a $643 million aircraft asset-backed securitization on July 17, 2026. It's their first joint deal, and it packages 18 aircraft leased to 12 airlines across 10 countries into three bond tranches, according to the PRNewswire release. I think this deal, and the roughly $8.3 billion in aircraft ABS priced so far in 2026, tells you something concrete about where fixed-income yield is coming from right now, and where the risk in that yield is hiding.

Let's start with what actually happened. AIP Capital and Monroe Capital named the deal MC Aviation 2026-1, or MCAV 2026-1 if you're skimming a term sheet. It's a securitization, meaning a structure where a pool of income-producing assets gets bundled into a trust that issues bonds against the cash flow those assets throw off. In this case, the assets are aircraft leases. Investors buy the bonds. The airplanes and the lease payments back them. You've seen this basic mechanic before in mortgage bonds and auto loan ABS. Aviation just runs on jet fuel instead of gasoline, and the collateral flies away if you don't manage it right.

The underwriting bench on this deal reads like a directory of structured credit desks. Deutsche Bank Securities, BNP Paribas, Fifth Third Securities, Citigroup, Natixis, BMO Capital Markets, and KeyBanc Capital Markets all worked the transaction. UMB Bank N.A. sits as trustee. KBRA, Moody's Ratings, and Fitch rated the tranches independently. Milbank LLP and Gibson Dunn handled the legal work on the sponsor and structuring side. That's not a boutique shop testing the waters with a small club deal. That's a full Wall Street syndicate treating aircraft leases as investment-grade fixed income, with Jared Ailstock leading the transaction for the sponsor group.

The Tranche Structure: Who Gets Paid First, and What They Give Up for It

Every ABS deal slices risk into layers. Aircraft ABS does it through tranches, usually labeled Class A, Class B, and Class C, stacked by seniority. Class A gets paid first and takes the smallest coupon because it takes the least risk. Class C sits at the bottom of the stack, absorbs losses first, and earns the biggest return if nothing goes wrong. MCAV 2026-1 follows that pattern with numbers I can show you directly.

Tranche	Size	Coupon	Yield	LTV	Priority
Class A	$547.0M	5.82%	5.896%	74%	Paid first, lowest risk
Class B	$66.5M	6.60%	6.696%	83%	Subordinate to A, senior to C
Class C	$29.6M	Retained by issuer	Not sold to investors	87%	First-loss position

Look at the LTV column. LTV means loan-to-value, the bond balance expressed as a percentage of the appraised aircraft value backing it. Class A sits at 74% LTV. That means the aircraft collateral would have to lose more than a quarter of its appraised value before Class A bondholders take a dollar of loss. Class B pushes to 83% LTV, a noticeably thinner cushion, which is a big part of why it pays almost 80 basis points more in yield than Class A. Class C goes to 87% LTV, and here's the detail I keep coming back to: AIP Capital and Monroe Capital kept it. They did not sell that tranche to outside investors.

That's called risk retention, and it is not just a regulatory box to check. When a sponsor holds the first-loss piece, the sponsor eats the first dollar of pain if a lessee stops paying rent or an aircraft comes back worth less than the appraisal assumed. It aligns incentives in a way that matters. The people who chose which 18 aircraft and which 12 airlines went into this pool have their own capital riding on getting that selection right, not just a fee for assembling the deal. I would rather see a sponsor retain the first-loss tranche than watch them sell every layer to the market and walk away with none of their own skin in the outcome. It's a small structural fact, but it tells you a lot about how much AIP Capital and Monroe Capital believe in their own underwriting.

Why I Think Aviation Finance Is Having a Moment

Here is the backdrop you need to understand this deal. Boeing and Pratt & Whitney both went through production and engine problems over the past few years that pulled new aircraft out of the delivery pipeline. The result, according to Wilmington Trust's research on aviation ABS issuance, is a delivery shortfall of more than 5,000 aircraft against an order backlog north of 17,000 planes. That research cites IATA data showing the gap is expected to persist through 2034. Read that again. Through 2034, not next quarter, and not next year.

What does a delivery shortfall this large do to the value of existing aircraft? It makes them worth more, for longer. Airlines that cannot get the new planes they ordered keep flying, and keep leasing, the mid-life aircraft they already have. Lease rates hold up. Residual values hold up. And the aircraft sitting inside MCAV 2026-1 fit that story closely: a weighted average age of 5.6 years, roughly 6.9 years of remaining lease term, 71% next-generation aircraft, and 81% narrowbody planes, the workhorse single-aisle jets airlines run on domestic and short-haul routes. That is not a portfolio of aging widebodies nobody wants anymore. That is the exact sweet spot of the current aircraft shortage.

Zoom out and the volume behind this deal confirms the trend is not a one-off. The Maples Group's 2026 report on aviation financing and leasing trends puts 2025 aircraft ABS issuance above $10 billion, up 85% year over year and the strongest total since 2019. Griffin Global Asset Management's $1.245 billion deal last year was the largest aircraft ABS ever printed at the time. FTAI Aviation and other lessors have been active issuers too, feeding investor demand for aviation paper. Add it up and 2026 is already tracking around $8.3 billion year-to-date across roughly ten lease-backed deals, with MCAV 2026-1 as the newest entry. Wall Street has decided aircraft leases are a repeatable, financeable asset class again, not a novelty product a handful of specialists trade among themselves.

Here is my read on why this matters beyond the headline number. For years, aviation finance sat mostly with insurance companies, pension funds, and a handful of specialist private funds, largely out of reach for an individual investor without a very large check and a direct relationship. A securitization like MCAV 2026-1 gets rated by three agencies, tranched into digestible pieces, and sold through a bank syndicate. That is a fixed-income instrument with a CUSIP number, not a private placement memo you need eight figures to see. It does not make aviation exposure retail-friendly overnight. It does make the asset class legible and price-discoverable in a way it simply was not five years ago, and that matters for anyone trying to understand where yield in fixed income is actually coming from in 2026.

The Risk Side, Because Every Yield Number Has a Cost

I am not going to sell you on a 6.696% yield and stop there. Every basis point of extra return on Class B versus Class A exists because of extra risk, and aircraft ABS carries three risks you should hold in your head at the same time, not one at a time.

Residual value risk. These bonds are secured by airplanes, and airplanes depreciate, sometimes predictably and sometimes not. If jet fuel prices spike, if a manufacturer floods the market with a more efficient replacement model, or if a recession hits and airlines start parking fleets instead of flying them, the aircraft backing these bonds could end up worth less than the LTV math assumed at closing. An 87% LTV on Class C leaves almost no room for error before that tranche takes a loss. Even Class A's 74% LTV is not a guarantee. It is a cushion, and cushions compress fast in a bad enough downturn, the same way home values compressed for mortgage bond investors in 2008.

Lessee credit risk, spread across 10 jurisdictions. Twelve airlines, ten countries. That diversification genuinely helps. One struggling regional carrier in one country does not sink the whole pool by itself. But diversification also means you are underwriting the credit quality of a dozen airlines you may never have heard of, operating under different bankruptcy regimes, currency regimes, and regulatory environments. Aircraft repossession law is not the same in every country. Getting a plane back from a lessee that stops paying can take a few months in one jurisdiction and drag on for years in another. That is not a footnote buried in the offering memorandum. That is the mechanism that decides whether a default becomes a manageable, contained event or a multi-year workout that eats into bondholder recoveries.

Air travel demand cyclicality. Air travel is discretionary spending, and it is economically sensitive. It cratered in 2020 and took years to fully recover. It is booming now, which is exactly why lease rates and residual values are strong across the industry. But booming now is a market condition, not a permanent state of the world. Fuel price shocks, geopolitical conflict, or a global recession can hit air travel demand hard and fast, the way they always have historically. Ishka Airfinance data already shows post-Iran-conflict spreads widening modestly on Class A aircraft ABS notes in mid-2026, moving from around 145 basis points to about 160 basis points. That is a small move in the grand scheme. It is also a live reminder that this asset class prices geopolitical risk in close to real time, not just the credit risk of the airlines involved.

None of this means MCAV 2026-1 is poorly structured. The tranching, the risk retention on Class C, and the independent ratings from KBRA, Moody's, and Fitch all exist specifically to price and layer these risks so investors know what they are buying. But structure manages risk. It does not eliminate it, no matter how many banks are on the underwriting cover page. If you are evaluating any aviation-linked fixed income product, ask about LTV cushions, jurisdiction concentration, and lessee credit quality before you even look at the headline yield number. The yield is the easy part to understand. The risk underneath it is the part that actually determines your outcome.

How Accredited Investors Actually Get Exposure

I am not going to tell you to go buy a piece of MCAV 2026-1. Most individual investors cannot anyway, since ABS tranches like these typically place with institutional buyers through the underwriting syndicate, and I do not recommend specific securities in this column regardless. What I can do is lay out the paths that actually exist today for accredited investors who want exposure to aviation finance as an asset class.

• Direct aircraft leasing funds. Private funds that buy aircraft outright and lease them to airlines, collecting rent and eventually selling or re-leasing the asset at the end of the term. I covered how these funds structure fees, hold periods, and illiquidity in a 2026 guide to aircraft leasing funds for accredited investors. Worth reading if the direct-ownership route interests you more than the securitized-bond route I've described here.
• Aviation-focused private credit and structured notes. Some private fixed-income products reference aviation loan pools or lessor debt without you buying an actual tranche of a public ABS deal. These come with their own liquidity terms and issuer credit risk layered on top of the underlying aviation risk, a structure worth understanding fully before you sign anything. I break down how that layering works in a separate piece on structured notes and private fixed-income risk.
• Publicly traded aircraft lessors. Companies like AerCap, Air Lease Corporation, and FTAI Aviation trade on public exchanges every day. Buying shares gets you equity exposure to the same lease-rate and residual-value dynamics driving MCAV 2026-1, with daily liquidity and no accreditation requirement standing in your way. But you are taking equity risk in that case, not the defined coupon and seniority of a specific bond tranche.
• Interval funds and BDCs with aviation sleeves. Some business development companies and interval funds hold aviation loans or lessor debt as one slice of a diversified credit book. Check the fund's actual aviation concentration and its own use of use before assuming the fund's diversification does the protective work you think it does.

Whichever path you take, ask the same three questions I would ask about MCAV 2026-1 itself. What is the LTV cushion on the piece you're buying. How concentrated is the lessee and jurisdiction exposure underneath it. And who is holding the first-loss piece, the sponsor or you.

MCAV 2026-1 is a well-underwritten deal riding a real tailwind. A delivery shortfall is propping up mid-life aircraft values, and that shortfall is expected to persist through at least 2034 on IATA's own numbers, cited by Wilmington Trust's research. That tailwind is genuine, and it explains why bank after bank keeps showing up to underwrite aircraft ABS deals in 2026. It is also not permanent, and a strong macro backdrop is never a substitute for reading the actual tranche structure, the LTV cushions, and the jurisdiction mix of whatever aviation-linked product lands in front of you next.

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.