Chased this stock as it dipped under VWAP with heavy volume . To make it worse , used market order b/c I use different windows , TD for charting & TZ to trade & wasn't quick enough . I got filled on bottom of candle which isn't ideal entry . Used VWAP as risk . Biotech stocks are often hard to short so covered on the break of support of 2.45 with volume & covered into next support it formed . Didn't hold b/c it had signs of strong buy support every time it dipped so played it safe .