Luminex Corporation (LMNX), a developer of biological testing technologies, posted first-quarter fiscal 2011 earnings per share of 11 cents, comfortably beating the Zacks Consensus Estimate of 6 cents and exceeding the year-ago earnings of 5 cents. Profit more than doubled year over year to roughly $4.5 million owing to higher sales. Revenues shot up 30% [...] (LMNX) Luminex Tops Earnings Estimates