In today’s market video, Emerging Market Investor Chief Analyst Paul Goodwin reminds investors that the general market trend is down, so you should keep your weakest stocks on short leashes. Without a supportive market, these stocks can turn a modest gain into a steep loss if you don’t keep strict stop losses in place. Some stocks to keep on tight leashes are Celgene (CELG), Neurocrine Biosciences (NBIX) and Martin Marietta (MLM). Paul also names some stocks that displayed stamina despite the weak market, including Athenahealth (ATHN), Expedia (EXPE), Pandora (P), Amazon (AMZN) and Royal Caribbean (RCL).