The stock in the maker of flow-control systems fell 5 3/4, to 25 1/2.
Before the scaling back, the New York-based maker of electronic systems estimated that the contract would be worth up to $4 billion.
Knorr-Bremse is a maker of braking systems for rail and truck vehicles.
Her father is a controller for Apache Products, makers of sound systems, in Meridian.
Almost every major computer company in the world now asserts it is a maker of systems that offer total solutions, rather than just computers.
An endorsement by a group of music retailers has settled an occasionally nasty contest between two makers of electronic anti-shoplifting systems.
Originally a maker of proprietary systems, Bull is now trying to join the open-system camp.
Last year it paid $2.8 billion for Tandem, a maker of systems used by banks and telecommunications companies.
The theory is that the new applications business will have an incentive to create versions of programs for makers of other operating systems like Linux.
Cisco Systems, a maker of systems that link computers into networks, was the second-most-active stock at 5 million shares.