Mortgage-backed securities are financial instruments that bundle thousands of mortgages into layers called tranches, where higher-rated AAA tranches receive payments first while lower-rated B tranches receive payments last and bear the highest risk of default; as default rates rise from 1-4% to 8%, these lower-rated tranches can become worthless, demonstrating how complex financial products can hide underlying risks from investors.
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The Big Short (2015) | How Wall Street Turned Debt Into βWealthβ ππ¦Added:
You smell that? What is that?
>> A cologne?
>> No.
>> Opportunity?
>> No. Money?
>> Oh, >> okay.
>> I smell money.
>> Okay.
>> This is your basic mortgage bond.
>> All right. The originals were simple.
They were just thousands of AAA mortgages bundled together, guaranteed by the US government. The modern ones are different. They're private and they're made up of layers of tanches.
the highest level AAA's getting paid first, the lowest rated B's getting paid last, taking on defaults first. Now, obviously, if you're buying B's, you can make more money, but they're a little risky. Sometimes they fail. Somewhere along the line, these B's and double B's went from a little risky. The default rates are already up from 1 to 4%, fellas. And if they rise to 8%, and they will, a lot of these triple B's are going to zero, too. And that you're too
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