Mr. Singhal said Google and the Metaweb team, which then numbered around 50 software engineers, have since expanded the size of the index to more than 200 million entities, partly by developing "extraction algorithms, " or mathematical formulas that can organize data scattered across the Web.
Nor was there any correlation between the size of index funds in particular commodities and the price rise for those raw materials.
ECONOMIST: Investors may not have caused commodity price rises
The GenVault plate, the size of an index card and slightly thicker, contains 384 tiny wells, each lined on the bottom with special paper and prefilled with a strand of synthetic rice DNA, varying in length and sequence.
During this exam, a flexible tube containing a small transducer about the size of your index finger is guided down your throat.
These little wonders come in two basic flavors, palm-size machines with the dimensions of a small stack of index cards and hand-held computers roughly the size of an extra-long paperback.
Asked if the supplemental index is getting bigger, he responds that "new pages are constantly being added, " but that the "algorithmic nature" of Google's spider makes it hard to measure the index's size or how fast it's growing.
Nor does the index weight those 30 stocks by their size in the market.
Despite some firms raising larger and larger funds, Index has kept its fund size the same, opting to keep to its strategy of finding the best early-stage startups.
FORBES: Index Ventures Raises $442 Million Sixth Early Stage Fund
Exposure to value, size and momentum factors explains the excess returns from alternative index strategies.
Although stock or index selection is generally based on volatility characteristics and the size of specific equities, low volatility ETFs, de facto have sector concentrations investors should keep in mind when they are making their selections.
FORBES: Low Volatility Funds May Not Be As Low Risk As You Think
Unsurprisingly, the companies that received the most positive coverage had performed well before the stories were published: their share prices had, on average, outperformed the index by 42.7% once adjusted for sector and size.
Kaufman's book is a marvel of concision, with a handy color-coding system (red for "medium-size land birds") and a one-page index on the back page.
Vincent Palermo, an index expert at Merrill Lynch, is testing indices that would weigh the size of countries' economies, as well as their outstanding bonds.
The index evaluates economic freedom by looking at the rule of law, regulatory efficiency, the size of government and open markets.
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