you don't understand much about technology companies, do you raul? Most of the big medical device companies do not manufacture their own circuit boards, plastic housings, cables, wires, nuts, bolts, screws, etc, that go into their products. They are not "vertically" integrated. They don't manufacture test equipment, test fixtures, computers, software, and a broad swath of other technologies and components which are required to have a successful end product. All of the companies who supply those things are commonly referred to as "feeder" companies, because the "feed" off of the bigger companies. When the bigger companies begin to struggle economically, what do you suppose happens to the feeder companies, raul? You need to think deeper.