With heightened trade tensions between the U.S. and Canada and rising oil prices weighing on investor sentiment, U.S. stocks came under pressure on Tuesday. Against this backdrop, the SPDR S&P Biotech ETF (XBI), a broad benchmark for the U.S. biotechnology sector, declined 1.15% during regular trading hours but edged 0.09% higher in overnight trading.Now, let's take a look at some of the biotech and pharmaceutical companies that gained in overnight trading on Tuesday.Modular Medical Inc. (MODD), a medical ...