Benzinga’s Top Gainers (SNSS, CBK, AA, NCR, ERJ)

Sunesis Pharmaceuticals, Inc. (NASDAQ: SNSS)(FREE stock trend analysis) has soared 37.41% to $1.91 on 12.26 million shares. In the last 5 trading sessions, SNSS has gained over350%.

Christopher & Banks Corporation (NYSE: CBK)(FREE stock trend analysis) has jumped 27.41% to $7.67 after Christopher & Banks reported a surprise preliminary Q3 EPS of $0.19-$0.21, well above the analyst estimates of ($0.05). It sees Q3 same-store sales down 8.4%. For the third quarter, the retailer sees a 500 basis points increase in gross margins.

Alcoa Inc. (NYSE: AA)(FREE stock trend analysis) shares climbed 6% to $14.31 on 20.35 million shares after today Alcoa has inaugurated the expansion of the Alumar alumina refinery in northern Brazil, where capacity more than doubled from 1.5 million metric tons per year (mtpy) to 3.6 million mtpy

NCR Corporation (NYSE: NCR)(FREE stock trend analysis) shares climbed 9.19% to $10.69 on 3.20 million shares. Today, Paul Coster of J.P. Morgan upgraded his rating on NCR to Overweight from Neutral, while lowering his price target to $15, from $16.

Embraer - Empr Bras Aeronautica (ADR) (NYSE: ERJ)(FREE stock trend analysis) has surged 9% to $22.18 after ERJ has signed an agreement with CDB Leasing Co worth $2.2 billion over three years to help finance the sale of regional jets in Asia.