Invented by Charles Dow in 1896, The Dow Jones Average ("The Dow") is perhaps the most widely known metric of equity market behaviour. Calculated as a price weighted average of thirty stocks, The Dow is generally eschewed by professional investors who prefer the broader S&P 500, a so-called market capitalisation weighted index consisting of 500 stocks. Regardless, proponents of the Dow claim its simplicity, long history and careful design as a reliable proxy of US economic activity as points in its favour. But can they now claim predicability as well? [more inside]
posted by Mutant on Oct 23, 2010 - 19 comments

Lenny Dykstra was lauded for his heroics with the Mets and Philles. After his career, Dykstra became well-known as a post-career athlete success story. Then the truth started coming out... [more inside]
posted by reenum on Oct 27, 2009 - 22 comments

Academic discussions of stock markets frequently reference The Efficient Markets Hypothesis; an idea that share prices are fairly valued, their prices reflecting all available information. However folklore such as "Sell in May and go away", which proved prudent in 2007, clashes with this theory. [more inside]
posted by Mutant on May 15, 2008 - 11 comments

On Tuesday, the Federal Reserve cut interest rates by 0.5%. Wall Street aggressively demanded the cut to stop the sub-prime mortgage contagion from triggering a credit crisis among large US and foreign investment banks and the collapse of their over-leveraged hedge funds, which ultimately threatened to drag the US economy into recession. The market rallied this week in response to the Fed's move. But there is no free lunch. [more inside]
posted by Pastabagel on Sep 20, 2007 - 99 comments

AestheticallyUnappealingBedfellowsFilter: "George Soros initiated holdings in Oil Equipment & Services company Halliburton Co.. His purchase prices were between $27.62 and $33.53, with an estimated average price of $31.3. The impact to his portfolio due to this purchase was 2.02%. His holdings was 1,999,450 shares as of 12/31/2006. Halliburton Co. closed today at $30.05." Maybe he's 'culture jamming'? Might raise some amusing ethical conundra in any case.
posted by waxbanks on Mar 1, 2007 - 53 comments

Want to learn about investing? Morningstar, an independent investment researcher, is offering 172 free online "classes" on stocks, bonds, funds, and portfolio building. And there's nifty quizzes at the end of each lesson where you can earn points that can be used for Morningstar products.
posted by ThePinkSuperhero on Jan 9, 2007 - 20 comments

EarthShell, a small Maryland company that makes environment-friendly packaging (among others) may wink out of existence thanks to PIPEs, or private investments in public equities. Who likes PIPEs? Hedge Funds, mostly. Companies that take the pipe, as it were, may be sealing their doom. 10 percent of PIPE deals done this year are 'death spirals', where the company's stock price plummets from short selling by the financiers who structured the deal in the first place. And of course it's legal if you don't get caught shorting the stock naked and covering with the shares from the PIPE. (BTW, http://www.earthshell.com appears to be on the margins now or I'd have linked it).
posted by nj_subgenius on Dec 27, 2006 - 24 comments

The Motley Fool's new CAPS stock-picking system keeps track of your stock picks and whether they outperformed or underperformed the market. Then everyone's picks are aggregated, weighted by the quality of their past records, to rank individual stocks. Here's how it works. (more inside)
posted by ikkyu2 on Oct 4, 2006 - 13 comments

Why Stock Markets Crash : Critical Events in Complex Financial Systems. Professor Didier Sornette of UCLA has some very interesting things to say about stock markets. In his book, he explains how his "theory of cooperative herding and imitation [...] has detected the existence of a clear signature of herding in the decay of the US S&P500 index since August 2000 with high statistical significance, in the form of strong log-periodic components." Although his timing has been just a bit early, the theory, the predictions to date and the pictures are all pretty uncanny. This is easily the most interesting book on the stock market I have ever read and provides interesting and believable hypotheses about things I never imagined could have rigorous explanations. For an overview, here is an interview with the author.
posted by muppetboy on May 14, 2004 - 19 comments

Someone we trust says something reassuring. Fed Chairman Alan Greenspan, arguably the most powerful man in the world, blames "infectious greed" for the recent panic-like tail-spins on Wall Street, but says that the economy is on the way to recovery. One comment held that Greenspan was finally able to let out how he feels about what's going on, without shrouding his opinion in economic jibber-jabber.

"For once he really spoke his mind. He usually tends to obfuscate things quite a bit."

But really, how many of you expected Greenspan to say anything other than "the fundamentals are in place for a return to sustained healthy growth"? Does Greenspan actually feel this way? Could it be that he is actually majorly pessimistic, but is using his soothing sweet-song voice and obvious clout and earned respect to somehow buck recent trends? Bush's speech didn't do much for our faltering economy, but will Greenspan's? Can one man's mere words possibly change the course of history? Well?
posted by Hammerikaner on Jul 16, 2002 - 27 comments