An interest-only mortgage with a balloon payment equal to the original principal is best described as:
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In the speculative unit, the levered investment is riskier than the hedge unit. Here the borrower purchases an asset that is backed by enough cash flow to pay back the interest but not the principal. An example is an interest-only mortgage with a balloon payment equal to the original principal. This mortgage can be tempting to borrowers because of its lower monthly payment.
William Banner has just been granted a subprime mortgage. In the model where the mortgage is essentially a free at-the-money call option, the strike price of Banner’s “option” is the:
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The value of the property is the strike price because if the property value increases above the purchase (strike) price, all of the gains accrue to Banner.
One explanation for how a subprime mortgage borrower is granted a free at-the-money call option on the value of their property is that:
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The option is free because no down payment or origination fees is required to obtain the mortgage. It is a call because, if the property value increases above the purchase (strike) price, all of the gains accrue to the borrower (the option holder).
Subprime mortgage borrowers were granted a free at-the-money call option on the value of their property because:
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Borrowers had been granted a free at-the-money call option on the property. The option was free because no down payment or origination fees were required to obtain the mortgage. It was a call option because, if the property value increased above the purchase (strike) price, all of the gains accrued to the borrower (the option holder). If prices declined, the borrower did not lose any money.
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