So where we left off is, there was 1,000 people who all
needed, let's say, $1 million loans each.
And they were all going to pay 10% on their loans.
And they borrowed it from this bank.
It's kind of a standard commercial bank.
And this bank says, well you know, I just handed out $1
billion and I'm getting these interest payments.
And my vaults are empty.
I want to have money back in my vaults.
Or I want to have money back on my balance sheet.
So I'm going to sell these loans.
I'm going to bundle them all together and sell them to this
And now what is this investment bank going to do
with these loans?
And why is it doing it?
So let me delete this.
So we had the investment bank.
I randomly picked the color green, but I think it is
appropriate for the investment bank.
So now I have all of the, you know, me-- that's a little
There's 1,000 of me, and we are now going to pay the 10%.
We're now going to make all of our mortgage payments, the 10%
payment, to this bank, this investment bank.
But the investment bank, they're not in the business of
servicing loans or keeping loans on their balance sheets.
So what they do is, they create a corporation.
They create an entity, maybe a special purpose entity,
whatever you want to call it.
So they create a company.
Let me make that in purple, another color.
So they created this company.
And what they do is, they will take their rights to these
payments that they got.
They paid $1 billion to that first bank in order to get the
payments from all of these people.
And they say, you know what?
The rights on those payments-- that's the asset.
They bought all these loans.
The rights on those payments, we are now going to transfer
to this special purpose entity, to this other
So now everyone is going to, essentially-- all their
mortgage payments are going to be funnelled into this entity.
And this is a corporation.
And so what the bank will do is issue shares in this
So let's say that it issues, let's sat for simplicity, a
So what's in this corporation?
The entire corporation gets the mortgage payments on the
$1 billion in loans, right?
It has $1 billion of loans outstanding.
And it is going to get 10% a year.
So it's going to get $100 million per year right?
Because it's a thousand loans out there.
It's going to get $100 million per year for 10 years.
And at the end of the 10 years it's also going to get $1
That's its asset it has.
Its asset is the rights on those payments streams that
are going to come into this corporation.
And it has 100 shares.
The way I think about is you can split
this company 100 ways.
And I'm doing this to further confuse you.
So what is each of those-- the owner of each of those shares,
what does it entitle them to?
Well, it entitles me to 1/100 of what this corporation gets.
So if I have a share-- let's make it look like a share, a
stock certificate-- I'm going to get 1/100 of this thing.
And normally you wouldn't have 100 shares.
You would have, let's say, a million shares.
Actually let me make it a million shares, just because I
think that's, in some strange way, more realistic.
So let's say there are a million shares.
So if there are 1 million shares, each share will get 1
millionth of the cash flow stream that's
entitled to this entity.
So instead of getting $100 million every year, it gets
one millionth of that.
So it gets $100 per year.
And then on the last year, instead of getting $1 billion
it gets $1000.
So what the bank will do is it'll take these shares and
then it'll sell it to the general public.
It'll IPO it, essentially.
You can think of it that way.
And tons of people will buy it, especially hedge funds,
and pension funds, and mutual funds, and bond investors.
And it's important to think about how the money's flowing.
So now when they sell these shares in this entity, people
are going to give them, well, hopefully more than what they
paid for it, right?
Maybe there's a lot of demand for this type of asset, where
I get this type of income stream.
So maybe once they sell all the shares, they get, I don't
know, they get $1.1 billion for them, right?
So this is the investors.
And the investors collectively buy these
shares for $1.1 billion.
Essentially, let's say they paid $1.1 billion for a
million shares, so they paid $1,100 per share.
Each of the investors paid $1,100 for each of these
shares, so that $1.1 billion goes into this
special purpose entity.
And if you think about it, the bank made out
like a bandit, right?
Because the bank paid $1 billion for the rights to
these mortgage payments, and it's getting $1.1 billion from
And all the bank has to do is kind of set this whole legal
structure up and service the loans.
It actually doesn't even have to service the loans.
We'll go into that later.
So let me summarize, I guess.
Just because I know this can be a little bit
of a daunting subject.
Let me summarize.
And this purple I don't like.
So you have tons of investors.
So, each of these is an investor.
Actually a mortgage, a borrower.
All of these people need to buy houses.
These are all smiley faces.
They all need to buy houses.
And then they collectively get $1 billion.
Right? $1 million each.
And they each use that $1 million to buy their house.
And then that $1 billion initially came from just their
And when the $1 billion came from that local bank, all the
payments, the interest payments, went to the bank.
But then an investment bank came along and said, well no,
I want to buy the rights to those payments.
And an investment bank came along and says, well, I'm
going to give you $1 billion.
And now instead of you getting the
payments, I get the payments.
And then the bank sets up a special purpose entity.
Essentially it sells a bunch of shares.
Let's say it sells a million shares.
And let's say it was able to sell each of those shares for
$1,100 from the investing public.
So it raises $1.1 billion, right?
So the value of this company is $1.1 billion that now goes
to the bank.
And now the payment stream instead of going to-- let me
do a different color-- now the payment stream goes to this
special purpose entity instead of the bank.
And the bank essentially made out like a bandit because it
paid $1 billion and it got $1.1 so it made $100 million
just for doing this transaction.
I'm not saying that's how much a bank actually would make,
but this shows you why every person is kind of, what
they're doing in this value chain.
And as I said before, this bank also probably did
They probably took some fees or sold the loans for slightly
more than they issued the loans for.
So these shares-- each of these one million shares--
this is a mortgage-backed security.
And it makes sense.
It's a security.
A security is an ownership that's tradable in a company.
And that company has the right to payments that are secured
So if all these people promised they would pay, and
they're going to pay to this special purpose entity.
But if, by chance, one of these people lose their jobs
or they can't pay, or for whatever reason, instead of
the payments, this entity is going to have the rights to
And that's why we say that it's a
So it's not just a promise to get money.
The money is actually backed by people's mortgages.
And of course, then this entity is going to, if this
guy defaults on his loan-- he's one of a million, so
statistically you might be able to predict that.
I don't to put too much stock in these statistical models--
then this entity will just have that property auctioned
off or sold.
And the cash flow will come back to it.
So that's what a mortgage-backed security is.
Hopefully I didn't confuse you too much.
My next presentation, I'm going to take it to a further
level of confusion and show you what a collateralized debt
And then I'll do a more philosophical video on why
these things even exist, and why they're useful, and why
people may benefit or may not benefit from these things.