Bierman: The market is poised to enter a prolonged adjustment period. Between October and December, I expect there will be efforts to keep it propped up, but the setup for October points to a standard 5% pullback. That said, investors shouldn’t mistake a 5% dip for a generational buying opportunity. If the S&P 500 SPX breaks below 6,530, it could trigger automatic-sell programs, leading to a brief bounce but not a real recovery. If we fall through 6,350, that would signal the end of the current uptrend that ...