Benzinga's Volume Movers

Nordion

shares rose 11.05% to $11.56. The volume of Nordion shares traded was 9797% higher than normal. Nordion agreed to be acquired by Sterigenics for $11.75 per share. Exact Sciences

shares climbed 6.84% to $13.74. The volume of Exact Sciences shares traded was 208% higher than normal. Exact Sciences shares have jumped 31.49% over the past 52 weeks, while the S&P 500 index has gained 18.91% in the same period. Rio Tinto plc

shares moved up 2.03% to $55.85. The volume of Rio Tinto shares traded was 149% higher than normal. Rio Tinto's PEG ratio is 0.58. Cal-Maine Foods

surged 6.94% to $61.50. The volume of Cal-Maine Foods shares traded 129% higher than normal. Cal-Maine reported a rise in its fiscal third-quarter profit.