It's Tuesday March 17th.

Welcome to Market Foolery.

I'm Chris Hill joining me in studio today for Motley Full Funds, Bill Barker.

Happy St. Patrick's Day.

Thank you.

We're going to talk some housing.

We're going to talk about one aspect of the business of St. Patrick's Day, which is not necessarily

the business aspect that I think the average person would expect certainly wasn't what I was

not the most promoted part of the celebration no definitely not the most promoted and

yet it is a business story but let's start in the airline industry because shares of American Airlines

up nearly 6% this morning on the news that it will be the newest addition to the S&P 500

index. So at the close of trading on Friday, March 20th, American Airlines will be added to the

S&P 500.

Allegan, which is the maker of Botox, is going to be bumped off the index. How big a deal is this? Because I think

when this type of thing happens, when this type of thing happens. A lot of times when we talk about it around the

office it's like well this is a short-term thing this is doesn't really mean

anything about the underlying business. I don't know though I don't

this seems like a pretty significant bump up in the stock price and maybe it's just

because it's an airline but you tell me how big a deal is this for American Airlines?

Well the the bump up in the stock price is based on the amount of money

Institutional money primarily but also money invested in S&P 500 index funds that mimics the S&P 500 exactly.

So you've got a lot of buyers who suddenly have no choice but to buy the stock goes into the index on

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