The chief executive of Switzerland's Julius Baer Group AG said Monday the private bank has had to "clarify a few cases" of currency trading to the country's regulator, an indication that the global investigation of possible market manipulation has spread well beyond the major lenders that have so far been at its center.

Several of the world's biggest banks, including Deutsche Bank AG and Citigroup Inc., have suspended a long list of traders since the probe started last April. Those two banks alone facilitate just under one-third of all currency trading.

The involvement of Julius Baer, a private bank for affluent clients that ranks 62nd in the global currencies market, according to the annual benchmark Euromoney survey, indicates that regulators' interest now extends beyond the top tier.

During a presentation of bank's annual results, Chief Executive Boris Collardi said Julius Baer has been approached regarding the foreign-exchange probe, adding that it had to "clarify" some cases where the bank had hired employees from larger lenders "more in focus" in the investigation.

In a subsequent interview with The Wall Street Journal, Mr. Collardi said the Swiss financial regulator, Finma, was the only one to contact the bank regarding the matter. Mr. Collardi said the regulator had inquired about "a couple of employees" who had joined the bank from UBS and Credit Suisse, though ultimately "it hasn't been necessary" to discipline or fire anyone as a result.

Julius Baer maintains a foreign exchange trading desk for its private banking clients, though Mr. Collardi said he doesn't consider the bank ranks as a market maker.

A spokesman for Finma said only that its investigation of foreign-exchange markets was ongoing. UBS declined to comment on the Julius Baer probe, while a Credit Suisse spokesman didn't immediately respond to a request for comment.

In October, Finma said it was conducting probes into "several Swiss financial institutions in connection with possible manipulation of foreign exchange markets." That same month, in a published interview with a Swiss media outlet, Credit Suisse Chairman Urs Rohner said the bank had received inquiries from regulators but hadn't found any evidence of foreign-exchange market manipulation.

Switzerland's UBS AG, whose currencies-dealing business is one of the biggest in the market, said in October that it had taken disciplinary action against employees during its internal review of its foreign-exchange business.

In January, HSBC Holdings PLC became the latest major bank to suspend traders. Around the same time, Citigroup suspended two more, adding to one previous firing over this issue. The growing list of traders placed on leave clearly shows the probe is no longer confined to a small single chat room known as "The Cartel."

As previously reported by The Wall Street Journal, Standard Chartered, ranked 17 in the business with a market share of about 1%, was also dragged into the investigation at the end of last year when it suspended a trader who had recently moved to the U.K.-based bank from UBS.

Write to John Letzing at john.letzing@wsj.com and Chiara Albanese at chiara.albanese@wsj.com

Subscribe to WSJ: http://online.wsj.com?mod=djnwires

Julius Baer (PK) (USOTC:JBAXY)
Historical Stock Chart
From Jun 2024 to Jul 2024 Click Here for more Julius Baer (PK) Charts.
Julius Baer (PK) (USOTC:JBAXY)
Historical Stock Chart
From Jul 2023 to Jul 2024 Click Here for more Julius Baer (PK) Charts.