Wells Fargo analyst Ken Sena raised his price target for Amazon.com (AMZN) to $1,525 to reflect increased outer-year estimates for Web Services as well as a higher sum-of-the-parts valuation.

The stock closed yesterday up $15.48 to $1,176.75. The analyst highlights the "very successful" five-day Amazon Wed Services conference in Las Vegas, "record-breaking" early holiday sales data, and another healthcare industry development with CNBC reporting the company is in talks with generic manufacturers Mylan (MYL) and Novartis (NVS). Sena sees an increasing likelihood that Amazon "ultimately becomes a disruptor" in healthcare, with generics representing a potential point of entry.

The Wells Fargo Healthcare team sees generics as a "simple entry point" in pharma as it involves many players with ready supply and a price competitive market, Sena tells investors in a research note. The analyst keeps an Outperform rating on Amazon.