Canadian officials are tamping down speculation that President TrumpDonald John TrumpHouse Democrat slams Donald Trump Jr. for "serious case of amnesia" after testimony Skier Lindsey Vonn: I don't want to represent Trump at Olympics Poll: 4 in 10 Republicans think senior Trump advisers had improper dealings with Russia MORE will soon withdraw the United States from the North American Free Trade Agreement (NAFTA).
The sixth round of NAFTA negotiations are slated to begin January 23 in Montreal.
Kansas City Southern fell as much as 4.6% after the report, its biggest loss in more than eight months.
Reports of NAFTA's possible demise, meanwhile, sent the Canadian and Mexican currencies tumbling, and the USA dollar rising from Can$1.2432 at 1200 GMT to Can$1.2554 at around 2030 GMT. The Canadian loonie fell along with Mexico's peso and yields on Canada's government bonds.
A White House official later said there was no change to Trump's position on NAFTA. U.S. Trade Representative Robert Lighthizer responded earlier Wednesday, calling that move a "broad and ill-advised attack".
Men who take ibuprofen are at risk for fertility problems, study says
Next, the researchers tested the direct effect of ibuprofen on testicles, using samples that had been taken from organ donors. But they said they were anxious about the effect of ibuprofen on the fertility of long-term users, such as athletes.
"The market's been too complacent regarding Nafta termination risk for too long", said Bipan Rai, a Toronto-based foreign-exchange and macro strategist at Canadian Imperial Bank of Commerce. The US is insisting on a five-year automatic termination clause, stricter rules on autos, government procurement and dairy, and the overhaul or elimination of dispute panels.
Any of them can also rescind the withdrawal during that time period.
Mexican Economy Minister Ildefonso Guajardo has said his country won't negotiate under duress and will leave the table if the U.S. initiates the withdrawal process.
Any of the three countries can pull out of NAFTA if they give six months' notice, but the agreement remains in effect.
Despite those preparations for a possible pullout, Canada will stay at the negotiation table even if Trump makes that call, those sources said, speaking on the condition of anonymity.