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Why Index Funds Are Like Subprime CDOs

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Re: Why Index Funds Are Like Subprime CDOs

#3
Not an economist, but it's obvious to anyone used to thinking in terms of systems that index funds can't work after a certain amount of the money poured into the system is managed by index funds.

What's the limit - 30% 40%, 50%, 60%? What's the current level in terms of managed capital? (Edit: https://www.cnbc.com/2019/03/19/passive-investing-now-contro... says 45% for US stock-based funds, half a year ago, so maybe like 48% now)

I wonder if the endgame is that index funds won't be allowed to trade on the the stock exchanges? I can't imagine how that would be enforced.

"Mr/Mrs/Ms Fund manager, you've been trading too close to the index, we'll be forced to terminate your access to the markets"?

Re: Why Index Funds Are Like Subprime CDOs

#4
Can someone who understands investing well explain what he’s saying in terms that someone who isn’t knowledgeable about this could understand? I kind of think he’s saying that everyone is just shoveling their money into index funds without thinking about it and this leads to incorrectly valued stock that will correct in the form of a crash at some point. Is that sort of the gist of it?

Re: Why Index Funds Are Like Subprime CDOs

#6
post #2

If true what's the hedge? Pension and investments to cash and bonds? Japanese stocks?

All types of investment in every country is subject to financial repression.

You could own gold, but wait ! any gain is taxed as income ( not capital gain ). Carrying it around has stiff penalties.

"You invest in how we say you invest" - Uncle Sam.

Re: Why Index Funds Are Like Subprime CDOs

#8

Can someone who understands investing well explain what he’s saying in terms that someone who isn’t knowledgeable about this could understand? I kind of think he’s saying that everyone is just shoveling their money into index funds without thinking about it and this leads to incorrectly valued stock that will correct in the form of a crash at some point. Is that sort of the gist of it?

When people invest money into index funds, then the funds must spend all that money buying the shares of the underlying fund companies. So that creates tons of buy orders for the underlying stocks, which creates the buying pressure, which makes the prices rise. As long as more money comes into the index funds the prices of underlying stocks will keep rising. But the higher the prices of the underlying the more money needs to come in to buy them at those prices.

What eventually happens is that there's not enough new money coming in for index fund buy orders to maintain the bottom of the underlying prices, which means that the prices start drifting lower, the popular financial press goes nuts, CNBC/FoxBusiness/WallSt Journal/etc blast it in the headlines and the same way goes the other way. People start selling their index funds, which makes the index funds sell the underlying which creates a massive wave of the sell orders creating a downward pressure, which in turn puts brings the indexes lower which makes press go screaming more which causes more people to want to "protect their test egg" by selling the index funds they had.

Re: Why Index Funds Are Like Subprime CDOs

#9

Not an economist, but it's obvious to anyone used to thinking in terms of systems that index funds can't work after a certain amount of the money poured into the system is managed by index funds. What's the limit - 30% 40%, 50%, 60%? What's the current level in terms of managed capital? (Edit: https://www.cnbc.com/2019/03/19/passive-investing-now-contro... says 45% for US stock-based funds, half a year ago, so maybe…

You only need the marginal investor to be informed, so it's not clear that you couldn't have a much higher percentage of passive investment (say 90%) and only a small amount of active investors who are providing price discovery.

The bigger problem is that most passive investments are not really passive - for example, choosing to invest in a "passive" S&P 500 ETF over a "passive" Russell 2000 ETF is an "active" investment choice (preferring large cap over small cap) so valuation errors and bubbles could develop in segments of the market, even if constituents with an index are all fairly valued relative to one another. These valuation errors could sustain for a long period of time, because it takes much more money to correct a valuation error in a huge market segment than it takes to correct a valuation error in an individual stock.

Re: Why Index Funds Are Like Subprime CDOs

#10

Can someone who understands investing well explain what he’s saying in terms that someone who isn’t knowledgeable about this could understand? I kind of think he’s saying that everyone is just shoveling their money into index funds without thinking about it and this leads to incorrectly valued stock that will correct in the form of a crash at some point. Is that sort of the gist of it?

That's the essence of it.
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