For three weeks running the Dow has traded between 10,200 and 10,400. This week’s news was mostly positive with the Federal Reserve trimming its forecast for the jobless rate, home re-sales and new home sales rising, and consumer spending climbing more than forecast.

After falling 5.5% from its recent peak in mid-October the S&P 500 roared back this week with a near 3% rally. A steady flow of good news soothed recent worries that the recovery was growing anemic. Ford led the good news parade waving a banner quarter of almost a billion dollars in profits. Tool-maker Stanley Works agreed to buy Black & Decker for $4.5 billion and the next day Warren Buffett announced that he was in the railroad business with a $26 billion “all-in” bet on the US economy purchase of Burlington Northern. What was bad news for Mr. Obama and Democrats was good news for investors as Tuesday’s Republican victories suggested the possibility of future gridlock and perhaps some near-term restraint in big government growth and spending.

The US economy expanded in the third quarter, reversing a year-long contraction of 3.8% for the world’s largest economy. It was the worst economic performance in seven decades. As for duration, the four consecutive quarterly declines were the longest since quarterly records began in 1947. But in the third quarter, the economy came roaring back with a 3.5% gain, well ahead of the 3.2% median forecast of economists surveyed by Bloomberg news.

There is a steady and dramatic shift occurring in the investment world toward Exchange Traded Funds. ETFs as they are called, represent baskets of stocks which are managed only to match specific indexes, not to beat them, as is the case for actively managed mutual funds. According to a recent study by Barclays Global Investors US listed ETFs climbed to an all-time high of $607 billion at the end of August. The study suggests that a "conservative" growth rate of 20% compounded annually, would put ETFs above $1 trillion by mid-2011. That total would represent 10% of the US mutual fund industry.  Brad Hintz, an analyst at Bernstein Research, in a Sept. 23rd research note said the growth of passive index products in general and ETFs in particular represent "a threat to traditional asset managers." He expects investors will focus even more on fees and tax efficiency with a sluggish outlook for stock and bond returns after the financial crisis. In this Brief I will demonstrate that there are even more significant advantages to the passive approach offered by ETFs than simply lower costs and taxes.