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  • David : I'm David Blitzer, I work for S&P Dow Jones indices.

  • You've probably heard of us with the ASX 200 and hopefully with the S&P 500. We have a

  • series of committees that oversee our indices make sure they follow the rules, and I chair

  • a number of those committees including a couple big ones in New York and for a long time,

  • I did chair the one down here in Sydney for the S&P ASX 200.

  • What's probably my best investment first of all, wasn't in stocks and wasn't indices at

  • all. Back in 1974, when New York City had a financial crisis and everybody thought the

  • city was going to go bust, my wife and I bought our first apartment, and most everybody who

  • heard us do that or knew we're doing it the were lunatics for doing it. But we made out

  • very nicely about 11 years later when we sold it and rolled all the money into a bigger

  • one, so we'd have room for our kids. That was by sheer luck maybe a great investment.

  • Joe : I'm Joe Dickson from ASX, and today, we're talking about the power of the index.

  • Joining us today is Dr David , chairman and managing director of the Index Committee at

  • S&P Dow Jones indices. And David's going to explain to us what an index is, how they're

  • create it, how companies get into the index and what it means if they get removed from

  • the index. Thanks for joining us David.

  • David : My pleasure. Good to be here.

  • Joe : Let's start at the beginning. What is an index and what's its purpose?

  • David : An index is a list of stocks. You need a rule for what's in and what's not in,

  • and you also need a rule about how they're weighted. Are they all weighted the same,

  • by size, or by something else. And with that, you can tell what's going on the Stock Market.

  • And probably the original use, and I think still a very big use, is an index tells you

  • what's happening the market. The ASX 200 tells you did it go up, did it go down yesterday,

  • did it go way up, did it bounce around, it tells you what happened.

  • But increasingly, probably in the last 30 to 40 years, there's been a whole another

  • use for an index which is growing and is now very important. And that is, you can build

  • a financial product, like change [inaudible 00:02:28] that you and I and anybody else

  • can invest in, that tracks the index. And it turns out to be a very effective and efficient

  • way to have a way to invest in a home market, or particular part of a market do very well.

  • What then happens, [inaudible 00:02:43] expenses on top of that.

  • Joe : Sounds like there's a fair bit of history in indices. Just pause for a minute, take

  • a step way back, company you work for's been involved in index for a long time. Can you

  • tell us a bit about the origins of the share market index please?

  • David : The first one, it's certainly the first one that's still around, was in the

  • United States and that's the Dow Jones industrial average-

  • Joe : Yeah I think most people have heard of the Dow Jones, yeah-

  • David : Absolutely. We hope so anyway, part of our name nowadays. The Dow started back

  • in 1896 and beginnings of the Wall Street Journal newspaper ... beginning of the newspaper

  • they wanted a way in one number to tell people that the stock market go up or down.

  • Joe : So this would help them sell newspapers possibly?

  • David : It definitely helped them sell newspapers. In fact, the S&P 500, or really its predecessors,

  • were created for the same reason. It was ... in those days Standard and Poor's sold a lot

  • of information at the Stock Market, and to sell more, they invented an index now called

  • the S&P 500. And if you go through a lot of places around the world, this story is the

  • same. Financial Times, the FT 100 started with that newspaper. And a lot of newspapers

  • over time gave up their indices because it was easier, and they got more bang by using

  • somebody else's index like the S&P 500, or I would guess here in Australia, like the

  • S&P/ASX 200.

  • Joe : Well let's talk about [crosstalk 00:04:13] yeah let's talk about Australia. S&P Dow Jones

  • look after the index calculation, just quickly give us a summary of the main market indices

  • for Australia please, David.

  • David : The number one item, the one that's most widely quoted is, the S&P/ASX 200, it's

  • 200 large liquid stocks. It really gives you the centre core of the market. But for an

  • investor looking at that, some investors may want fewer than 200 stocks, they don't want

  • just the large ones but the very large ones, others may want small stocks, others may want

  • to only real estate stocks and so on.

  • So we sort of slice it up and dice it up in six different ways. There is an S&P/ASX 20,

  • 50 and 100. 20 is the 20 largest stocks, 50 is the next 50 including the 20, and so on.

  • 200 is really the key item. When you get to 300 stocks, it's a very broad range of the

  • market and that's sort of description to the overall market. Although there is, to use

  • an older tradition and all ords which is, I think, 500 stocks, [inaudible 00:05:21]

  • anything that's out there.

  • Joe : Yeah, the all ordinaries index. That's right.

  • David : Depending on what pieces of the market you wanna look at, an in fact, people do things

  • like, take the 300 but then illuminate the 100 biggest stocks, then get the next 200,

  • which is sort of the middle section. We're also splitted up by industry. Natural resources

  • is a major factor in Australia, real estate is another major factor, or divisions, which

  • we use around the world, things like financials or healthcare, industries that repeat from

  • country to country.

  • Joe : From what I understand, indices are extremely powerful for companies and so when

  • a company is listed on ASX, or any exchange around the world, they're inclusion in a particular

  • index can have a big bearing on how much research gets conducted on them, how much interest

  • is there from different investors. S&P Dow Jones index, and the index committee, must

  • have a lot of power in determining which companies go in which index. Take some time. Can you

  • explain to me what your decision process, or the rules-based framework that you use

  • to include companies into an index.

  • David : The indices here are very much rules based. And we look at the stocks by ranking

  • them by size. Size in this case means what we call, "float-adjusted market cap."

  • Joe : Float-adjusted market cap?

  • David : Yes. When you look at an index, you wanna look at not just the value of the shares

  • on a market, and how many shares there are on the market. What you wanna look at are

  • the ones that are really on the market.

  • If you've got a company where the founder, or the family of the founder, if was founded

  • three generations ago, could say, owns 20% of the stock, and they're not gonna sell it.

  • It's their heritage, almost. That's not on the market, they gonna hang onto their 20%

  • through thick and thin. We're gonna look at the other 80% that is on the market. And when

  • we say float-adjusted, we don't count the 20% that's held by the family.

  • In some countries, the government will own a huge block of the stock. The government's

  • not gonna trade it because the stock went up or down, they're the government, so we're

  • not gonna count that holding in the same way. We look at the float-adjusted market cap,

  • which is a much better measure of what that company means to the market. And as an aside,

  • if you had a company where 90% is held either by the government or the founding family,

  • or three people in the board of directors. That stocks really not very big impact in

  • the market, even though it may sound big. That gets shrunken down.

  • First we look at size, and second of all we look at what we call, �Liquidity.� How

  • much it trades and how much trading activity there is. We don't wanna stock where somebody

  • comes in and buys 1000 shares. The thing suddenly pops up because not much is tradable. We wanna

  • stock that's quite liquid, instead if somebody busy 10,000 shares, it barely wiggles, because

  • one investor shouldn't be able to create turmoil in the market.

  • We rank them on size and liquidity, and we start at the top and the first 20 of the ASX

  • 20, 50, from number 1 to 50, to the ASX 200 is gonna be the 200 stocks. Number 200, cause

  • markets fluctuate, it may be number 199 one day and three days maybe number 202, and then

  • 195, and then 210. You don't wanna keep throwing them and putting them back in cause they bounce

  • around a bit. We have what's called a buffer which means we leave a little wiggle room

  • above and below the 200 mark so that we don't have to keep throwing people out or putting

  • them in and creating turmoil when they shouldn't be there.

  • Joe : That's a really important part that I wanna talk about next is that the companies

  • down the bottom of the list, on whatever size index, and I hear about quarterly rebalancing,

  • and rebalancing means something that can have quite an impact on a company. If a company

  • gets rebalanced or removed from an index, why would it be removed, and can you give

  • us some insight in what the repercussions might be for it?

  • David : One way I sometimes think about being on an index, being off an index, for company,

  • and at least for the S&P 500 where the rules are somewhat different and it probably has

  • bigger impact, is what I call theList effect.� If you're on the list, certain

  • things happen. If you're not on the list, they don't happen. One of the ironies is,

  • being on the list you get a lot of attention, you probably get more securities analysts

  • paying attention to you, you may get more calls from reporters from financial papers.

  • And your name probably pops up on lists of potential acquisitions by bigger companies.

  • That's sometimes [inaudible 00:10:21] not always the best thing. But everyone always

  • seems to want in anyhow. If a company gets added, not overnight, but gradually over a

  • period of time it will get noticed. If a company gets dropped off, immediately people gonna

  • say, �Why, what happened? Did they do something wrong?�

  • When we do a rebalance, which every quarter, the index committee sits down and they go

  • through all the indices top to bottom, they redo the ranking, check the data. When we

  • announce that, we always say the index change or adjustment is not an investment opinion

  • because we're just following the rules. We're not picking hot stocks. In fact, I've been

  • doing this a long time, you don't want me picking hot stocks, I can assure you of that.

  • We go to great lengths to say to investors and analysts, �Look at the numbers, look

  • at what happened, see if you think our data is right.� But we're not telling you the

  • stock is a bad investment because its number dropped from 200 to 215. We're not telling

  • you some other one's a great investment because the number went from 215 to 195. We're telling

  • you, �That's where the numbers were.� And maybe some stuck went up to 100 that got

  • very big or very small, it sort of push the list around.

  • Joe : That's probably a good point. You're not making a judgement call on the investment

  • viability of a company, are you, when it's rebalanced?

  • David : Definitely not. We're sticking to our rules. Now, clearly there are unusual

  • cases where we're gonna do something right away. The obvious one's if a company gets

  • taken over in an acquisition or is in a merger or if unfortunately they file for bankruptcy

  • or something, we'll have to adjust the index when that happens. If they're de-listed from

  • the exchange, they're going out cause nobody can buy them so it's pointless to have them

  • on a list at that point. But otherwise, all the normal changes will get down at every

  • quarterly rebalance.

  • Joe : The S&P ASX 200 index will give us an indication as to the performance of the largest

  • 200 companies on the market, but if investments aren't interested in the whole market, and

  • they just wanna look at banks or resources, do indices give us the ability to cut up and

  • look at those sectors individually?

  • David : They do. The whole market is made up of separate companies and whole bunch of

  • different industries and for any company in the index, we know more than just how big

  • it is in terms of market value, we also know what it does, what kinda business it's in.

  • We can take, say all the banks, and we'll make them another index. We might call it

  • a sub-index, that's just the banks. We can take real estate investment trusts, [inaudible

  • 00:13:05], and make another index of those. And you can go through the whole 200 stocks

  • creating a bunch of indices and then you'll get ideas, �Banks didn't do as well as real

  • estate. Natural resources did much better last year than they did this year,� all

  • that kinds of things.

  • We can also spice it up in a different way, and that is some investors like to talk about

  • growth companies, sounds like you outta be there. Other investors might talk about value

  • companies which usually means the stock is going down and you hope there's a lot of value

  • in it. We can cut the market up, and the growth companies, and the value companies, and an

  • investor will say, �Well, this is a growth market, cause the growth companies according

  • to the split are doing better.�

  • By splicing and dicing the index, we can tell you all kinds of analysis or all kinds of

  • stories about what's happening in the stock market, and maybe to give you a better idea

  • whether you should be in the market or outta the market. But they gotta remember, there're

  • no guarantees in this business. Forecasting about the future really is very difficult.

  • Joe : For people who love to learn about the index, and wanted to learn a little more,

  • where would be the best place for them to go be?

  • David : I think the place to start ... we run a website with a whole lotta information.

  • I'm sure the exchange runs one as well. But among the things they'll find there, they'll

  • find a rather thick book made, if they have insomnia, maybe a good [inaudible 00:14:33],

  • called, �The methodology of the S&P ASX indices,� which will go through all the

  • rules, list all the indices, tell you what's in them, tell you how they work.

  • Joe : So it's transparent? The information's there if people wanna find it.

  • David : It is completely there. You should be able to, or an investor should be able

  • to, go through that and if they have access to the kinda data sources we do, or the exchange

  • does, they should be able to do the same kinda analysis that we're doing.

  • Joe : Thanks for joining us, David, appreciate it.

  • David : My pleasure. Very good.

David : I'm David Blitzer, I work for S&P Dow Jones indices.

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指數的力量 (The power of the index)

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    林宜悉 發佈於 2021 年 01 月 14 日
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