TOKYO: Japanese investors sold a record amount of foreign bonds late last month, with banks seen dumping US bonds, although market participants expect buying to resume when the new financial year starts next month.

Data from the Ministry of Finance showed this week Japanese investors sold a total of 3.6 trillion yen ($33.4 billion) of foreign bonds during the second and the third week of February. That was their biggest net selling in any two-week period since the ministry started collecting data in 2005, almost cancelling out their constant net buying since the start of the year. “They appear to have essentially sold all they have bought so far this year,” said Masahiko Loo, portfolio manager at AllianceBernstein. US bond prices have been crumbling since last month as rising hopes of economic normalisation stoked inflation fears.

The benchmark 10-year Treasuries yield rose to a one-year high of 1.614% last month, compared to around 0.910% at the start of the year. While many investors had expected bond yields to rise over time, in line with the recovery in the economy, the pace of their rise took many by surprise, prompting a sell-off.

The five-year US bonds yield rose to as high as 0.865% on Thursday last week, double the level at the start of the month. But analysts suspect Japanese banks’ appetite could come back after the financial year ends on March 31.