(NYSE:

) surged 35.02% to $87.49. The volume of Hospira shares traded 7658% higher than normal.

(NYSE:

) announced its plans to acquire Hospira for $90 per share.

(NASDAQ:

) shares climbed 12.11% to $15.92. The volume of Stein Mart shares traded was 1419% higher than normal. Stein Mart announced a $5.00 per share special dividend and a $275 million credit facility.

(NYSE:

) shares rose 0.26% to $57.91. The volume of HDFC Bank shares traded was 812% higher than normal. India's HDFC Bank filed for a potential stock shelf.

(NASDAQ:

) shares moved up 3.48% to $47.94. The volume of Microchip Technology traded was 535% higher than normal. Microchip announced a proposed $1 billion offering of convertible senior subordinated notes due 2025.