Baystreet Staff - Tuesday, April 5, 2016 Sinovac Biotech (SVA) Up Slightly Ahead of Quarterlies Sinovac Biotech Ltd. (NASDAQ: SVA) shares eked up 0.2% to $6.40, as the company is expected to post its quarterly earnings. Share volume was 8,700, compared to an all-day average of 152,000