FRANKFURT (Reuters) -- The European Central Bank raised interest rates by 0.5% on Thursday and explicitly signalled at least one more hike of the same magnitude next month, reaffirming it would stay the course in the fight against high inflation.
But financial markets immediately interpreted the move as suggesting the tightening cycle might in fact end soon - just as they had done on Wednesday after U.S. Federal Reserve chief Jerome Powell said there were signs inflation was easing.
Separately, the International Monetary Fund published a blog urging global central banks to make clear to financial markets the probable need for interest rates to remain higher for longer in order to bring inflation sustainably back down to target.
The ECB has been increasing rates at a record pace to fight rising prices which are the byproduct of factors including the aftermath of the COVID-19 pandemic and an energy crisis that followed Russia's invasion of Ukraine nearly a year ago.
The central bank for the 20 countries that share the euro raised the rate it pays on bank deposits by another half-percentage point to 2.5%, in line with what it said in December and with market expectations.
It said the next rate increase would be of the same size, but left its options open further ahead.
"... the Governing Council intends to raise interest rates by another 50 basis points at its next monetary policy meeting in March and it will then evaluate the subsequent path of its monetary policy," the ECB said.
ING's global head of macro Carsten Brzeski said the ECB was "opening the door to either a pause or a slower rate hike pace beyond March", a view that was reflected in market moves as Germany's 10-year yield fell 15 bps to 2.14%.
ECB President Christine Lagarde disputed the interpretation that Thursday's move meant the hiking cycle was near the end.
"No. We know that we have ground to cover, we know that we are not done," Lagarde told a news conference, reiterating the bank's mantra that it would "stay the course" in the fight to bring inflation back down to its target of around 2%.
The disconnect between the ECB message and the market interpretation mirrored that on Wednesday after the Fed slowed the pace of hikes and acknowledged disinflation was underway, while reaffirming that borrowing costs needed to rise further.
The U.S. 10-year Treasury yield was down 3 bps at 3.36%, after falling as much as 13 bps on Wednesday following the Fed meeting.
Lagarde stressed that for the euro zone, she would not say the disinflationary process was already starting.
"We still have underlying inflation factors that are strong, solid and are not budging, so we need to do our job," she said, adding that beyond March, the next rate hike in May could be 25 bps, 50 bps or whatever was needed.
Separately, the IMF urged central banks to "communicate the likely need to keep interest rates higher for longer".
"Loosening prematurely could risk a sharp resurgence in inflation once activity rebounds, leaving countries susceptible to further shocks which could de-anchor inflation expectations," the head of the IMF's Monetary and Capital Markets Department, Tobias Adrian, and his two deputies wrote in a blog post.
Before the ECB decision, investors and economists were expecting the ECB to raise its deposit rate by another 50 basis points in March and take it to a peak of 3.25%/3.50% by summer, which would be the highest since the turn of the century.
The ECB also gave more details of its plans to whittle down the 5 trillion euros of bonds it accumulated over the last decade as it tried to boost inflation that was then too low.
Recent economic data for the euro zone has painted a mixed picture.
Headline inflation has been in rapid decline since peaking at a record 10.6% in October but core prices, which exclude volatile items such as food and fuel, have been rising at a steady or accelerating pace.
The euro zone unexpectedly eked out growth in the final three months of 2022 but this was largely due to an exceptionally mild winter and a stellar performance by Ireland.
And an ECB survey showed banks were tightening access to credit by the most since the 2011 debt crisis - usually the harbinger of lower growth and slowing inflation.
In December, the ECB said rates would be increased "at a steady pace" until it was happy inflation was heading back down to its 2% target.
But that guidance has since become a source of confusion for investors and contention within the Governing Council, as headline inflation fell sharply while underlying price growth was still inching up.