tgile512 wrote:Hey Thurst,
I am also just a L1 candidate so I am going to try my best to answer your question but maybe someone else can chime in on anything I am mistaken about.
I believe all three of the terms deal with the repayment of principal, which in turn means the interest payments will cease. Here is how I view each of the terms:
1. Prepayment Options: Deal solely with amortizing securities (like MBS) and occurs if borrowers (homeowners) refinance, sell their home, default, or simply pay off their mortgage early. The investors will receive the principal portion and will no longer continue to receive the interest cash flows. This can be a problem because homeowners will typically refinance when interest rates are low so the investors will be left with a large sum of money and no place to invest it.
2. Call Provision: These deal with non-amortizing securities and give the borrower (company, gov’t, ect) the right to buy back the bond at a predetermined price and therefore the interest payments stop. These can be thought of in a similar fashion as the prepayment option but in regards to non-amortizing securities. The borrower will typically call back the bond if rates drop so that they can replace it with a lower coupon issue. Again the investor suffers here because they receive a large sum of money and no place to invest it.
3. Sinking Fund Provision: Provides the issuer the ability to repay a portion of the bond issue annually as opposed to repaying the entire issue at maturity. This is very similar to the call provision but requires the issuer to retire a certain amount of the total issue every year whereas the call provision just grants them the right but not the obligation. This provision also benefits the investors because it is assumed that the issuer is less likely to default on the repayment of the remaining principal at maturity since the amount is substantially less than it would be without the provision.
Please note that I took a majority of this information from the Schweser materials and Investopedia.