Terex Corporation (TEX) Bad guidance. Drops to $37.12 from 52-week high of $91.21.

Hecla Mining (HL) Price of silver down. Sells off to $5.79 from 52-week high of $13.14.

The Manitowoc Company (MTW) Hurt by drop in Terex. Dips to $21.62 from 52-week high of $51.49.

Ciena (CIEN) Weak guidance. Plunges to $13 from 52-week high of $49.55.

Verisign (VRSN) Some investors still unhappy with last quarter’s numbers. Falls to $28.15 from 52-week high of $42.50.

Douglas A. McIntyre