Friday’s gains notwithstanding, the latest week showed that it doesn’t take long for market conditions to go from good to not so good — at least from a growth-stock perspective. Exactly one week ago in this space, several compelling IBD 50 charts were highlighted. The market was in a confirmed uptrend, but it was still a challenging environment to make money due to a lofty distribution-day count for the Nasdaq and S&P 500.