Fannie Mae TBAs
When the Federal Reserve talks about buying mortgage-backed securities (or MBS), it’s referring to the To-Be-Announced market (usually referred to as the TBA market). The TBA market allows loan originators to take individual loans and turn them into a homogeneous product that can be traded. TBAs settle once a month, and Fannie Mae loans are put into Fannie Mae securities. TBAs are broken out by coupon rate and settlement date. In the chart below, we’re looking at the Fannie Mae 4% coupon for July delivery.
TBAs are flat as the bond market sells off
Fannie Mae MBS followed the bond market higher. Liquidity has been downright terrible in the TBAs lately. The Fannie Mae 4% TBA started the week at 105 10/32 and ended up dropping 1/16.
The main action driving TBAs specifically seems to be out of Washington, between the Fed purchases and the government’s policies to drive origination. J.P. Morgan (JPM) reported that things are dismal in mortgage banking. Wells Fargo (WFC) did a little better, but not by much.
Implications for mortgage REITs
Mortgage REITs and ETFs such as Annaly (NLY), American Capital (AGNC), Capstead Mortgage (CMO), the iShares 20-year bond ETF (TLT), and the Mortgage REIT ETF (MORT) are the biggest beneficiaries of quantitative easing, as quantitative easing helps keep REITs’ cost of funds low and they benefit from mark-to-market gains. This means their existing holdings of mortgage-backed securities are worth more as the TBA market rises. The downside is that interest margins compress going forward because yield moves inversely with price. Also, as MBS rally, prepayments are likely to increase, which negatively affects mortgage REITs.
As a general rule, a lack of volatility is good for mortgage REITs because they hedge some of their interest rates risk. Increasing volatility in interest rates increases the cost of hedging. This is because as interest rates rise, the expected maturity of the bond increases, as there will be fewer prepayments. On the other hand, if interest rates fall, the maturity shortens due to higher prepayment risks. Mechanically, this means they must adjust their hedges and buy more protection when prices are high and sell more protection when prices are low. This “buy-high, sell-low” effect is called “negative convexity” and it explains why Fannie Mae MBS yield so much more than Treasuries.
© 2013 Market Realist, Inc.
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