For example, a floating windows user could monitor a stock ticker in a background window while working on a report in the foreground.

FORBES: Look, Ma, no glasses!

For a trade to be broken the stock had to have moved 60% from its last price within the 20 minute window between 2:40 and 3:00 p.m.

FORBES: Some Agreement on Speed Bumps for Market Panics

With such tales in mind, investors should regard the stock market's recent mauling as a rare opportunity to buy, or at least window-shop, for undervalued stocks.

FORBES: Magazine Article