They include Ask Jeeves Inc., Global Crossing, Aether Systems, Clarent, Copper Mountain Networks and VA Linux, now VA Software.
Copper Mountain Networks, for example, said it expected sales and profits to decline in the fourth quarter, and the stock plunged $17.03, to $9.84.
Mr. Helfrich was a member of the founding team at Copper Mountain Networks, a maker of equipment for high-speed Internet connections, and his résumé includes turns at the 3Com Corporation and Ascend Communications, two other computer networking equipment makers.
Copper Mountain Networks Inc., a maker of equipment for high-speed Internet connections, said yesterday that it planned to restructure, eliminating about 25percentt of its 450-person work force, and that its chairman and chief financial officer had resigned.
External link: Copper Mountain Networks (www.coppermountain.com).
Another DSL provider, Copper Mountain Networks cmtn, saw its share price jump more than 200% today after it began trading on the Nasdaq for the first time.
Among its recent hits are Copper Mountain Networks cmtn, a San Diego, Calif.-based maker of digital subscriber line equipment; Wavespan, a Mountain View, Calif.-based maker of wireless local area networks; and Phone.com phcm, a wireless Internet enabler.
Meanwhile, one of the high-flying DSL companies, Copper Mountain Networks, which banked on G.lite DSL, found itself plummeting from a cool $125 per share, to $4.00 per share.
The mountain's network of trails, which seem to extend endlessly from peak to peak, should be able to handle additional traffic.
