Biggest Winners (WAT) (GDOT) (WLK) (OXGN) (PRX) on May 6

Among the winners on Friday, May 6, as measured by share price increases, were Waters Corp. (WAT), Green Dot Corp. (GDOT), Westlake Chemical (WLK), Oxigene Inc (OXGN) and Pharmaceutical Companies (PRX).

Waters Corp. (WAT) was up $1.22, to close at $96.87, a gain of 1.28 percent.

Green Dot Corp. (GDOT) jumped $1.22 on the day to close at $39.19, an increase of 3.21 percent.

Westlake Chemical (WLK) rose $1.21 to close at $59.65, a boost of 2.07 percent.

Oxigene Inc (OXGN) soared $1.21 to close the session at $3.56, a gain of 51.49 percent.

Pharmaceutical Companies (PRX) surged $1.20 to end the day at $34.41, climbing 1.20 percent.