Stocks hover as investors still on tenterhooks over trade deal

LONDON (Reuters) - Global stocks faltered on Wednesday as optimism over a U.S.-Mexico trade deal faded with investors anxious about Canada’s acquiescence and eyeing a deadline for the next round of China-U.S. tariffs next week. Canada's chief negotiator continued talks to preserve a three-nation North American Free Trade Agreement following Monday's deal, but uncertainty over how long it could take for a final agreement to pass Congress kept moves muted.MSCI's world equity index , which tracks..