Movers Roundup: First Solar, Zions Bancorp

Among the stock activity stories for Tuesday, May 26, from AP Financial News:

NEW YORK (AP) — Sliding polysilicon prices and weak demand in Europe could pressure First Solar Inc.'s shares, said one analyst as he downgraded the company's stock.

NEW YORK (AP) — Zions Bancorp shares jumped after an analyst at Morgan Stanley upgraded the stock to "Overweight" from "Equal Weight," noting that the bank is now trading at an attractive price for long-term investors.

NEW YORK (AP) — Shares of Noven Pharmaceuticals Inc. gained ground after a Jefferies & Co. analyst upgraded his rating on the stock, citing the growth potential for its estrogen and ADHD products.

NEW YORK (AP) — Shares of Qwest Communications International Inc. advanced after a JPMorgan analyst upgraded the Denver-based telecommunications company, citing "relatively strong" revenue trends from businesses and a conservative guidance, among other reasons.

NEW YORK (AP) — Shares of Chico's FAS Inc. rose after an analyst said the women's apparel retailer's turnaround efforts are working and upgraded the stock ahead of its first-quarter earnings report.