Section 1.1
CLO structure versus the SRT structure you already know
CLO structure versus the SRT structure you already know
In short: a CLO is a cash securitization where a manager actually buys a pool of loans and funds that purchase by selling tranches of debt and equity, with a cash-flow waterfall paying investors from collections on the loans. An SRT is a synthetic transaction where the bank keeps the loans on its own balance sheet and only sells credit risk on a slice of that portfolio, paying investors a fixed spread rather than passing through loan cash flows. The rest of this section walks through how those differences play out tranche by tranche.Understanding Collateralized Loan Obligations (CLOs) - Guggenheim InvestmentsCLOs issue debt and equity to investors and use the funds to acquire a diverse portfolio typically comprising more than 200 loans. The debt is divided into tranches with varying risk and return profiles, determined by their seniority and priority in receiving cash flows from the loan pool.
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Start with what actually happens to the loans. A CLO is a cash securitization: it raises money by selling debt and equity tranches to investors and uses those proceeds to actually buy a diversified pool of typically over 200 corporate loans, which are transferred into the CLO vehicle. An SRT, by contrast, is a synthetic transaction: the underlying loans stay on the originating bank's balance sheet because the risk transfer occurs through a credit derivative or guarantee rather than a sale, so only the credit risk is passed to investors.The rise and risks of synthetic risk transfersAn SRT is a type of securitisation used by banks to transfer part of the credit risk associated with a pool of financial assets (typically loans) to investors. Those assets stay on the bank's balance sheet because the risk transfer takes place through a credit derivative or a financial guarantee. Th
Open source That single distinction — assets moved into a vehicle versus assets left in place with only the risk transferred — drives almost everything else about how the two structures differ.
The two structures also exist for different reasons. The two structures exist for different purposes: a CLO is built by an asset manager to create a yield-oriented investment product for capital markets investors, while an SRT is initiated by a bank chiefly to get regulatory capital relief on loans it keeps.Structured Credit: Why SRT and CLO Are Different Games | Resonanz CapitalCLO: Driven by investor demand for structured, yield-oriented products. CLOs arise from asset managers’ efforts to aggregate loan portfolios that offer attractive risk-return profiles.
Open source That difference in motivation shapes who initiates a deal and why: CLO managers are shopping for attractive loans to package for investors, while banks structuring SRTs are working backward from a capital target on assets they already originated and want to keep.
Cash flows work differently too. In a CLO, cash actually collected from the loan pool is paid out through a cash-flow waterfall, starting with the senior tranche and cascading down to the junior equity tranche. In an SRT, the investor's coupon is a fixed spread paid by the bank itself, set in advance and not linked to a cash-flow waterfall from underlying loan collections, and it is not shut off by senior-tranche protection mechanisms the way CLO junior cash flows can be.CLO, CRS, See the Difference, See the Opportunity? | Man GroupCRT interest payments are decided in advance of the issue of a deal and cannot be changed over the life of the transaction; this is an obligation of the issuing bank, sitting extremely high in their capital stack.
Open source In other words, a CLO investor's payment depends on how much cash the loan pool actually generates that period, while an SRT investor's payment is a contractual obligation of the bank, subject mainly to the bank not defaulting.
The tranche ladders look different as well. A CLO's capital structure typically has a large AAA senior tranche (around 65%), several smaller mezzanine tranches (4-12% each), and an equity tranche of about 8-10% that absorbs first losses. In a typical SRT, only a single mezzanine tranche is sold to outside investors; the bank retains both the senior tranche above it and usually the first-loss tranche below it, rather than distributing a full ladder of rated tranches to the market.CLO, CRS, See the Difference, See the Opportunity? | Man GroupSRT securitisations typically result in only a single unrated tranche issued to investors. The rest of the portfolio is retained by the sponsor. Without an issued senior tranche, SRTs are not structured to protect ratings and so the SRT tranche is never exposed to cash-flow diversion or rapid senior
Open sourceEverything you need to know about Significant Risk Transfer (SRT) | Vontobel Asset ManagementA mezzanine tranche is issued to the investor, with a senior tranche above that is retained by the bank and a first loss tranche that is subordinated to the mezzanine. The bank often retains this first loss tranche, but this can also be sold.
Open source So where a CLO spreads risk across a full spectrum of buyers from AAA down to equity, an SRT typically concentrates the transferred risk in one negotiated slice, with the bank still holding the rest of the stack.
A few more differences round out the comparison. CLOs are actively managed: a manager can trade loans in and out of the pool during a reinvestment period, typically the first five years.A Guide to Collateralized Loan Obligations (CLOs) | VanEckCLOs are actively managed vehicles. In a typical CLO structure, there is a reinvestment period (typically the first 5 years after the CLO is issued) during which the manager can buy and sell loans within the portfolio and reinvest within the parameters set forth by the governing documents.
Open source CLO tranches, especially senior ones, trade fairly liquidly in the secondary market, while SRT notes are private, mostly unrated, and much less liquid. The underlying collateral quality tends to differ too: CLOs are typically backed by single-B rated leveraged loans, whereas SRT reference pools often consist of higher-quality, investment-grade-ish (around BBB-) corporate exposures.