There’s no question that stocks in the Nasdaq composite index have seen massive gains over the last year and a half. Even after taking a back seat to cyclicals late last year, the index continues to hit new heights. That’s why investors should focus on Nasdaq stocks that offer the best long-term prospects. Qualcomm Inc. (QCOM), Amgen Inc. (AMGN), and Workday, Inc. (WDAY) are three that are certainly worth a look.