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  1. BLOG

    A reality check for MBS duration risk 

    Aug 15, 2019 Yihai Yu

    Risk Management , Fixed Income , Models/Client Cases

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    Empirical duration data can be used to check whether models for mortgage-backed securities are accurately measuring interest-rate risk.

  2. BLOG

    Are you ready for uniform MBS? (Part 2) 

    Apr 26, 2019 Yihai Yu

    Models/Client Cases , Fixed Income , Risk Management

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    Aligning prepayment speeds of Fannie Mae and Freddie Mac securities presents a major challenge to the success of uniform mortgage-backed securities (UMBS), which the two government-sponsored enterprises will launch on June 3.

  3. BLOG

    Are You Ready For Uniform MBS? (Part 1) 

    Apr 8, 2019 Yihai Yu

    Models/Client Cases , Fixed Income , Risk Management

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    Fannie & Freddie will conclude Single Security Initiative (SSI) June 3, 2019, creating a single to-be-announced (TBA) market & a new TBA security: the uniform mortgage-backed security (UMBS)

  4. BLOG

    How mortgage fees affect rates and spreads 

    Feb 7, 2019 Yihai Yu

    Models/Client Cases , Real Estate Investing , Fixed Income

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    How could potential changes in U.S. mortgage policy and possible long-term industry trends affect mortgage-related fees and rate spreads?

  5. BLOG

    Managing MBS risk in a rising rate environment (Part 2) 

    Nov 21, 2018 Yihai Yu

    Fixed Income , Risk Management

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    Will U.S. homeowners slow down the heady prepayment rate on their mortgages — even if interest rates remain unchanged, thus potentially harming returns of mortgage-backed securities (MBS) and extending the duration of these securities?

  6. BLOG

    Managing MBS risk in a rising rate environment (Part 1) 

    Sep 17, 2018 Yihai Yu

    Fixed Income , Risk Management

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    Bond investors lost $1 trillion during “the great bond massacre”1 of 1994, which was triggered by the Federal Reserve’s aggressive tightening of interest rates. Many U.S. mortgage-backed securities (MBS) investors and broker-dealers misjudged the risk that fixed-rate prime mortgage borrowers would defer prepayments due to market conditions. This risk — known as “extension risk” — means that borrowers may hold onto mortgages longer than previously expected.