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posted by cmn32480 on Monday November 23 2015, @10:14PM   Printer-friendly
from the time-to-check-the-addition dept.

In meetings with clients, hedge fund representatives present flashy charts and speak equal parts oracle and mad scientist. And for technical analysts who market themselves as the most technical of analysts, the mathematical jargon—"stochastic oscillators," "Fibonacci ratios," "Elliot wave," "Golden ratio"—evinces a certain disarming beauty. "This mathematics is embedded in the structure of the universe," Cynthia Kase, who runs a firm that employs "wave analysis" to predict oil prices, told Bloomberg News in 2012. "It is the language of God."

Though much of this language is too gaudy to be embraced by sophisticated investors, there is a more subtle mathematical con that many, including editors at most of the top financial journals, overlook. The positive results that emerge from testing the performance of an investing algorithm on past market data, a process known as backtesting, can seem reliable and logical. And they sometimes are. But often, in practice, presentations of these results, though marketed as scientifically rigorous, conceal statistically insignificant methodologies.


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  • (Score: 4, Informative) by mmcmonster on Tuesday November 24 2015, @12:13AM

    by mmcmonster (401) on Tuesday November 24 2015, @12:13AM (#267241)

    The hedge funds have lost a lot of their luster. They've mostly done worse than the S&P 500 (with dividends reinvested) over the last five years. The problem is, as soon as a hedge fund goes under, the same people that created it make a new one and the cycle starts over again.

    As I've said numerous times before, invest in low-cost S&P 500 index funds (Vanguard funds or other funds with similar expense ratios). Put money in every pay period and forget about it. Make sure the account is set to reinvest dividends, because that's where the magic happens.

    Also, because you're not selling funds and shifting your money around, index funds are quite tax efficient.

    See this for more info: https://www.bogleheads.org/forum/viewtopic.php?f=10&t=88005 [bogleheads.org]

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  • (Score: 1, Insightful) by Anonymous Coward on Tuesday November 24 2015, @12:17AM

    by Anonymous Coward on Tuesday November 24 2015, @12:17AM (#267243)

    Exactly.

    Also the reason those formulas 'work' is they *only* work when the market is semi steady. You get any sort of bounce they no longer match. At all. Even the dude who came up with them will tell you that.

  • (Score: 3, Disagree) by Phoenix666 on Tuesday November 24 2015, @12:47AM

    by Phoenix666 (552) on Tuesday November 24 2015, @12:47AM (#267256) Journal

    Hedge funds are a ponzi scheme. Those first in, win, the rest lose. It was a big scandal when Bernie Madoff was exposed, but he is representative, not aberrant.

    --
    Washington DC delenda est.
  • (Score: 4, Insightful) by TheRaven on Tuesday November 24 2015, @11:52AM

    by TheRaven (270) on Tuesday November 24 2015, @11:52AM (#267400) Journal

    They've mostly done worse than the S&P 500 (with dividends reinvested) over the last five years

    But that doesn't matter. The entire point of the scam is that you don't need to do better than the market on average. You create 10 funds with mostly random investments. They're likely to have a distribution somewhere over the bell curve. Some will lose all of their money, some will do a lot better. You only show the successful ones to potential investors, along with the caveat that, of course, past performance doesn't guarantee future returns (and the strong implication that it does really). Then you charge them a modest commission on the huge amounts that they're investing. If they're lucky, then your continued random investment will keep doing well. Otherwise, eventually they'll either lose their money or pull it out and put it elsewhere. By which time, you have 20 more funds building a track record, and a couple of those will look sufficiently promising that you can sell them to the next round of suckers...

    --
    sudo mod me up
  • (Score: 2) by JoeMerchant on Wednesday November 25 2015, @03:24AM

    by JoeMerchant (3937) on Wednesday November 25 2015, @03:24AM (#267851)

    The thing I find disingenuous about many long term market analyses is they they discount the failures - they take a look at today's S&P 500 (or index of choice), backtrack 20 years and then say "if you had invested in the S&P 500 20 years ago, your return would have been X." What they really need to do is go back 20 years, invest in what was the S&P 500 _then_ and tell you what your return would have been - including the companies that have gone completely bankrupt.

    --
    🌻🌻 [google.com]