When a nation’s central bank raises interest rates, it’s often a bullish sign for the currency. Not so in the US, where expectations for a Federal Reserve rate hike next week are flashing sell signals for the dollar.
BNP Paribas Asset Management says the broad greenback could plunge 10% in the next six to nine months, while Invesco forecasts it’ll sink about 2% against the euro by year-end. 
Both firms are watching the Fed’s September 26 decision for any comments on the impact of escalating trade tensions. The two companies also see the currency sliding as other central banks inch closer to monetary tightening.
“We have a turning point where the dollar is going to weaken’’ said Momtchil Pojarliev, deputy head of the currencies team at BNP Paribas Asset Management, which manages $653bn. 
The dollar is “at the maximum positive point” and could weaken to $1.25 per euro in the next six to nine months from around $1.1770 on Thursday. It’s also a good time to short the US currency against the yen, Pojarliev said.
The Bloomberg Dollar Spot Index slid as much as 0.6% to its weakest since July on Thursday, even as the US Treasury 10-year yield approached its year-to-date high. 
The market views a 25 basis point Fed rate hike next week as a near certainty, based on fed fund futures. Contracts on Thursday showed more than 45 basis points of total tightening by the end of 2018. 
Focus is increasingly shifting to the outlook for next year, with investors moving closer to the central bank’s projected path of three rate hikes for 2019.
That won’t be enough to prop up the greenback, according to Noelle Corum, an Atlanta-based portfolio manager in Invesco’s fixed-income group. 
As global growth improves and market participants start to speculate about policy changes from the European Central Bank and Bank of Japan, the dollar’s support from Fed hikes and trade tensions will wear off, she said.
“Going into year-end, we would expect fundamentals will begin to drive markets again, and this will drive the dollar weaker,’’ said Corum, whose group manages $235bn. She forecasts the greenback will depreciate to $1.20 per euro and weaken to ¥104 per dollar by year-end.
The US currency has risen about 5% since mid-April, bolstered by a robust economy, gradual tightening by the Fed and haven flows as investors sought refuge from escalating trade tensions. That’s been painful for investors who began the year with a bearish mentality following a 8.5% decline in 2017.
As the dollar started to gain steam this year, speculators piled into bullish bets. Long-dollar wagers are now the third-most crowded trade in financial markets, according to fund managers surveyed by Bank of America Merrill Lynch Global Research.
And yet, prominent investors including Ray Dalio, who founded the world’s biggest hedge fund at Bridgewater Associates, and Jeffrey Gundlach, chief investment officer at DoubleLine Capital, are turning bearish alongside some Wall Street strategists.
“The Fed needs to be taken in the context of other themes like trade,” said Mark McCormick, North American head of FX strategy at Toronto-Dominion Bank. “The market anticipates a hike and there is more room to fade the USD as positioning looks well-populated.”