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MARKET MOVER - BNP PARIBAS - Investment Services India

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This section is classified as non-objective research<br />

MBS: Shorter Empirical Durations Under QE<br />

• QE3 is likely to bring in lower empirical<br />

durations akin to QE1, due to stability in rates<br />

and mortgage prices.<br />

• The 15bp to 30bp state-based upfront g-fee<br />

amounts to a small 3bp to 6bp rate increase,<br />

based on the IO multiple of 5 used by the FHFA.<br />

With the Fed bringing an element of stability to rates<br />

and particularly mortgage prices, empirical durations<br />

have begun to decline. Chart 1 shows the ratio of<br />

empirical-to-trader hedge ratios for 3.5s and 5s; we<br />

chose just those two coupons as representatives to<br />

provide a clearer picture of the contrast between lower<br />

and higher coupons. While the ratios for all coupons<br />

are declining, the declines seem to be of a greater<br />

magnitude in higher coupons. Plus, the ratios are<br />

greater than one in 4.0s and lower coupons, but lower<br />

in 4.5s and higher coupons.<br />

A similar trend was observed during QE1, when<br />

empirical hedge were ratios shorter than trading ratios,<br />

particularly for higher coupons (Chart 2). We show 4.5s<br />

and 6s as representatives since the current coupon<br />

was much higher during QE1 than at present. Lower<br />

empirical durations would improve the hedge carry of<br />

MBS. The decline post-QE3 announcement has also<br />

helped to improve hedge adjusted carry across the<br />

coupon stack (Chart 3).<br />

We continue to expect MBS to outperform<br />

Treasuries, despite the richening, given steep<br />

demand from the Fed against a negative net supply.<br />

Clearly, carry is already attractive and should<br />

improve further with lower durations and volatility.<br />

However, as we discuss in an accompanying article,<br />

”QE3 Impacts on US Spread Products”, riskier asset<br />

classes, such as corporates, may perform even<br />

better than MBS.<br />

State-Based G-fee<br />

FHFA announced that it would potentially implement<br />

an additional state-level g-fee (guarantee fee), starting<br />

in 2013, for five states: Connecticut (20bp), Florida<br />

(20bp), Illinois (15bp), New Jersey (20bp) and New<br />

York (30bp). This g-fee proposal is under comment<br />

period for 60 days. Lenders may pass the upfront fee<br />

as an adjustment to the interest rate on the borrower’s<br />

loan. The FHFA used the suitable IO multiple of 5 in<br />

their example to make the adjustment to the annual<br />

rate from upfront fee. This amounts to a small 3bp to<br />

6bp rate increase, depending on the state.<br />

Chart 1: Empirical vs Trader Hedge Ratios – QE3<br />

1.2<br />

1.0<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

-<br />

Empirical Vs Trader 3.5s<br />

Empirical Vs Trader 5s<br />

Jan-12 Mar-12 May-12 Jul-12 Sep-12<br />

Source: <strong>BNP</strong> Paribas<br />

Chart 2: Empirical vs Trader Hedge Ratios – QE1<br />

2.0<br />

1.5<br />

1.0<br />

0.5<br />

Empirical Vs Trader 4.5s<br />

Empirical Vs Trader 6s<br />

-<br />

Nov-08 Feb-09 May-09 Aug-09 Nov-09 Feb-10<br />

Source: <strong>BNP</strong> Paribas<br />

1M Hedged Adjusted Carry (ticks)<br />

8<br />

6<br />

4<br />

2<br />

0<br />

Chart 3: Hedge Carry Has Improved<br />

-2<br />

FNMA 3.0s FNMA 3.5s<br />

FNMA 4s FNMA 4.5s<br />

-4<br />

FNMA 5s FNMA 5.5s<br />

7/2 7/16 7/30 8/13 8/27 9/10<br />

Source: Yield Book, <strong>BNP</strong> Paribas<br />

The g-fee estimation is based on three factors. The<br />

first is the expected number of days that it takes an<br />

Enterprise to foreclose and obtain a marketable title to<br />

the collateral backing a mortgage in a particular state.<br />

The second is the average per-day carrying cost that<br />

the Enterprises incur in that state. The third is the<br />

expected, national average default rate on singlefamily<br />

mortgages acquired by the Enterprises. To<br />

estimate the magnitude of the state-level differences<br />

in the average total carrying cost, the estimation<br />

assumes that loans originated in each state will default<br />

at the national average default rate.<br />

Timi Ajibola 20 September 2012<br />

Market Mover<br />

21<br />

www.GlobalMarkets.bnpparibas.com

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