Bloomberg TVFundstrat's Tom Lee is worried about the stock market after being one of its biggest bulls for eight years. In a note sent to clients on Friday, Lee said several factors that had supported his views on the market, including attractive valuations and central-bank support, had turned neutral or possibly negative. "Many of these factors have become neutral and potentially headwinds," Lee said. "We see the conditions in place for a 1H drawdown, although our original 2150 target does seem awfully hard to reach — we now look for equities to pullback to 2200-2225 in 1H," he said, referring to the first half of 2017.