Why do Investors Care?
Consumer spending accounts for two-thirds of the economy, so if you know what consumers are up to, you'll have a pretty good handle on where the economy is headed. Needless to say, that's a big advantage for investors.

The pattern in consumer spending is often the foremost influence on stock and bond markets. For stocks, strong economic growth translates to healthy corporate profits and higher stock prices. For bonds, the focus is whether economic growth goes overboard and leads to inflation. Ideally, the economy walks that fine line between strong growth and excessive (inflationary) growth. This balance was achieved through much of the nineties. For this reason alone, investors in the stock and bond markets enjoyed huge gains during the bull market of the 1990s. Spending at major retail chains did slow down in tandem with the equity market in 2000 and 2001.

The Redbook is one of the more timely indicators of consumer spending, since it is reported every week. It gets extra attention around the holiday season when retailers make most of their profits.