DoubleLine Securitized Credit ETF (DSCO)

The DoubleLine Securitized Credit ETF (DSCO) is an active, non-index-tracking fund that invests in securitized credit — pools of mortgages, auto loans, credit-card receivables, and other consumer and commercial debt that have been packaged and sold as tradeable securities. The fund aims to harvest yield from securitized assets while exercising active credit selection and risk management; it neither blindly holds an index nor concentrates its bets on a single subsector.

From mortgage-backed securities to the modern securitization market

Securitization is the practice of bundling loans — mortgages, auto loans, equipment leases — into pools, then dividing those pools into tradeable securities backed by the cash flows those loans generate. Mortgage-backed securities (MBS) emerged in the 1970s and became a pillar of the housing market. Asset-backed securities (ABS) — made from auto loans, student loans, credit-card receivables, and other consumer debt — followed and have since become a deep, liquid market of their own.

DoubleLine Capital, the fund’s sponsor, was founded in 2009 by Jeffrey Gundlach, who gained recognition in the financial crisis for calling the mortgage market collapse in advance. The firm built its reputation around credit selection in fixed-income securities, including securitized assets. DSCO, launched in 2012, was designed to capitalize on the post-crisis dislocation in the securitized-credit market, where investors had withdrawn en masse and valuations offered compelling opportunities to investors willing to carefully analyse individual securities.

What the fund holds and how it decides

DSCO does not track an index. Instead, the fund’s portfolio managers analyse securitized-credit securities across several categories: agency mortgage-backed securities (MBS issued or guaranteed by US government agencies like Fannie Mae), non-agency MBS (mortgages bundled without government backing), asset-backed securities (ABS from auto loans, personal loans, and credit-card receivables), and commercial mortgage-backed securities (CMBS, backed by office towers, shopping centres, apartment buildings, and other real property).

For each security the fund considers, the managers look at the underlying loans’ characteristics — credit quality, loan-to-value ratios, borrower income, prepayment behaviour — and the security’s position in the pool’s cash waterfall (senior tranches are paid first; junior tranches absorb losses first). They aim to identify securities with attractive yield relative to their true default risk, avoiding both the safest (agency MBS, which offer minimal yield) and the riskiest (deeply subordinated tranches in distressed pools). The result is a portfolio that sits in the middle of the securitized-credit spectrum, seeking reasonable yield without taking outsized risk.

Yield, costs, and who holds DSCO

DSCO aims to produce income — its yield has historically ranged from 4% to 6% depending on market conditions and the fund’s positioning. The fund charges an annual expense ratio of roughly 0.35%, a reasonable cost for active management. It trades on the NYSE Arca with good liquidity; the average daily volume is high enough that institutional investors can build positions without moving the market significantly.

DSCO appeals to income-oriented investors who want exposure to securitized credit but lack the expertise or bandwidth to pick individual securities themselves. Some use it as a core fixed-income holding; others employ it as part of a barbell strategy — holding ultra-safe Treasuries in one pocket and higher-yielding securitized credit in the other. Insurance companies and pension funds that already own securitized assets sometimes use DSCO as a way to gain additional exposure without expanding their own securities-research teams.

Concentration risks and the housing cycle

Because securitized credit is anchored to real-world loans — mortgages, auto purchases, credit-card spending — its value rises and falls with the borrowers who service those loans. In a healthy economic environment with low unemployment and stable home prices, securitized assets perform well and yields compress as investors compete for returns. In a recession, borrowers default, home prices fall, and securitized securities (especially junior tranches) can suffer sharp losses. DSCO’s non-agency MBS holdings and its ABS exposure mean the fund is not insulated from these cycles.

The fund also has implicit concentration in the US consumer. While securitized ABS on auto loans and credit-card receivables diversify funding sources, they are ultimately paid from the incomes of US households. A sustained economic downturn that hammers employment or household balance sheets will hit DSCO holdings across all asset classes.

Agency MBS, which the fund can hold, are backed by the full faith and credit of the US government, but the fund’s emphasis on selective value-hunting means DSCO tends to weight non-agency and junior securities more heavily than a passive securitized-credit index would.

How to research DSCO

Start with the fund’s annual report and semi-annual reports, which list the fund’s holdings by security type and credit profile. DoubleLine’s website publishes regular market commentary on the securitized-credit landscape, which provides context for how the fund managers see current opportunities and risks. The fund’s monthly fact sheet shows the current yield, duration, average credit rating, and breakdown of holdings by asset type.

For a broader view of how securitized credit fits into a fixed-income allocation, examine how mortgage rates, auto financing spreads, and consumer credit conditions are trending. Rising mortgage rates typically pressure non-agency MBS prices; a credit-card spending slowdown can hurt ABS backed by credit-card receivables. DSCO’s prospectus details the fund’s investment process and the risks associated with each type of securitized security it may hold.