61.   Not all tracking stocks go down, of course.

62.   On Tuesday, DuPont announced that it would establish a tracking stock to allow investors to bet on the performance of one part of the company.

63.   One advantage of a tracking stock is that its underlying assets can be swapped with assets in the parent company without incurring taxes.

64.   One advantage of investing in a tracking stock is that you often get a growth company that comes with a big name behind it.

65.   Priceline, even more than Amazon.com, has served as a sort of tracking stock for the whole dot-com sector.

66.   Privately, executives close to the negotiations say Bell Atlantic does not plan to offer a tracking stock after a deal.

67.   Quantum last year replaced its traditional shares with separate tracking stocks for the hard-disk group and for its tape-drive business.

68.   Shares of the consumer business will trade as a tracking stock of the business operation.

69.   So we came up with the tracking stock.

70.   Some companies try to avoid this danger by employing a halfway step known as a tracking stock.