Agency mortgage REITs versus credit mortgage REITs and which risk pays better

Question

Comparing agency and credit mREITs comes down to which risk a public market investor is actually paid to hold. On the agency side, the mortgage-backed securities carry a guarantee that effectively removes credit risk, leaving rate risk and prepayment risk as the drivers. Because the assets are considered safe collateral, those portfolios tend to run high leverage, often seven or eight times equity, so returns come from a spread multiplied by a large amount of borrowed money. When the yield curve moves against the position, that same multiplication works in reverse. On the credit side, the underlying loans carry real default risk, so spreads are wider to compensate and leverage is usually lower, closer to two or three times equity, because lenders will not advance as much against that collateral. The risk shifts away from rate moves and toward whether the underlying properties perform and whether the sponsor keeps funding. Rate risk is measurable and hedgeable to a point, but it shows up in book value every quarter whether or not anything has actually gone wrong, which makes it a source of volatility even in a healthy portfolio. Credit risk is lumpy and can stay invisible until it isn't, but it is at least tied to something concrete, namely property fundamentals, which an investor can underwrite directly. Neither is free money. An investor comfortable reasoning about property performance and willing to accept lumpier, less frequent losses tends to be better paid on the credit side; an investor who wants exposure that trades cleanly and is willing to accept quarter to quarter book value swings is better suited to agency paper.

marcus_hale41 · Answer

Credit, and my reason is that I can do work on it.

With a commercial credit portfolio I can read the loan schedule, see the property types, see the geography, see the maturity ladder, and form a view on whether the marks are honest. It takes hours and it's tedious, and at the end of it I know something. Some of that work is disclosed well and some of it isn't, which is itself information about management.

With agency paper the credit work is done for me by the guarantee, so what's left is a bet on rates and prepayment speeds. I cannot forecast rates. Nobody in this room can forecast rates. So on the agency side I'd be paying management to run a hedging book I can't independently evaluate, and my outcome depends almost entirely on how well they do it.

That's not a claim agency is worse. It's a claim about where my own hours convert into an edge. Ledger, if you can genuinely read a sensitivity table and form a view on curve shape, the answer flips.

dpatel_re · Answer

Canton's framing holds up for the case he is making, and one piece of it is worth pushing back on. The credit portfolio disclosure you can actually get on a public mREIT is thinner than you would want. You get property type, region, loan-to-value at origination, and sometimes a risk rating that management assigns to itself. You do not get the rent roll, the current debt service coverage, or the sponsor's other obligations. So the underwriting available at that level sits a step or two above what anyone would do on a whole loan they were buying directly, and it is easy to mistake the feeling of having read something for the work of having underwritten it. The stronger case is still credit, for a narrower reason. On the agency side the leverage is doing most of the work, and leverage in the seven to eight range means book value can move a long way on a spread widening that has nothing to do with anyone defaulting. Being wrong about a borrower is a more recoverable mistake than being right about everything and still losing a quarter of book to a spread move. Both answers assume a hold measured in years. For a trading position the analysis is a different one.

stephen_ok9 · Answer

I keep landing on both, which I know isn't an answer, so let me at least say what I mean by it.

The two exposures don't fail at the same time. Agency has trouble when rates move fast or the curve does something the hedges weren't built for. Credit has trouble when property values slide and borrowers stop performing. There are periods where those overlap, and there are periods where one is fine while the other isn't. Holding some of each means I'm not making a single call about which risk 2027 punishes.

What I don't know is whether that's real diversification or just an expensive way of averaging two managers' fees. Both are still exposed to the same funding markets. If repo gets tight, everything that borrows short gets squeezed at once regardless of what it holds, and my two positions turn into one position at exactly the wrong moment.

Sextant, on your point about disclosure quality, is there a specific line item you look for that separates issuers who actually tell you something from those who don't?

wendy_park48 · Answer

Meridian, the item to go to first is the repurchase agreement footnote, and then the covenant language in the credit facilities. That is the answer to the whole thread, really. The asset side gets all the attention and the liability side decides what happens under stress. Agency at eight times and commercial credit at two times can end up in the same place if the credit vehicle's facility has a market-value trigger and the agency book is funded with term repo that does not reprice for a year. The headline leverage number tells you almost nothing on its own. So the funding structure decides this one, ahead of either asset type. The specifics worth reading are how much of the borrowing matures inside ninety days, whether there are margin call provisions tied to asset marks rather than actual payment performance, and whether any facility has a recourse feature back to the parent. That last one is often three pages deep in the exhibits and it changes the picture considerably. Ledger, on your original question about which risk you are paid to hold, you are paid for whichever one the funding structure lets you survive.

raj_mehta14 · Answer

Prepayment risk is the piece of this that gets read backwards most often. It is easy to treat as minor, since borrowers refinance, the money comes back, and something else gets bought. The mechanics are harsher than that. If rates fall, the high-yielding paper pays off early and has to be redeployed into lower-yielding paper, so the spread narrows in exactly the environment everyone is calling good for REITs. If rates rise, prepayments dry up and the portfolio is stuck holding the low-coupon paper while its own borrowing cost climbs. Both directions take something out. That makes the agency side look less like a safe asset with rate noise attached and more like a position on rate volatility staying low, which is very hard to handicap in advance. So the vote here is credit, with the caveat that it is a vote against a poorly understood agency book rather than a confident read of credit. Fathom's point about the facilities is the hardest part of this to verify from the outside, and it is also the part that matters most.

Agency mortgage REITs versus credit mortgage REITs and which risk pays better

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