SUNDOOM

[DR. EVIL]

Sirona Dental Systems
Sirona Dental Systems (SIRO) has grown considerably over the last decade and currently sports a market cap of more than $3 billion. Sirona is a manufacturer of dental equipment that operates through an international distribution network. The stock, sitting near all-time highs above $56, has produced incredible returns. Over the past decade alone, SIRO has gained 2,520%. If you calculate returns from when SIRO traded under $1, they would be even greater. On Dec. 29, 2000, the stock closed at 27 cents.