Cerner shareholders gathered to discuss the company's fortunes this morning and Wall Street is nervous. Cerner shares are up slightly this morning after an up and down week. Analysts have rated the company a strong buy because of its relatively dominant position in the healthcare IT market at a time when interest in the sector is growing. Skeptics wonder if competition may erode that advantage. Meanwhile, Business 2.0 has named the company to its list of the top 100 fastest growing companies. Article