In the world of trading, if stock's trend is down, it is usually impacted/amplified by the general market which is down too. So, the answer is not to invest long in another stock in hopes of covering a loss in AMRN. Rather, it's to stay on the sidelines or short in line with the general market trend or day-trade counter trend trades. Remember, "the trend is your friend?" Never is that more true than in the midst of a bear market while overweight risky small caps.