Deutsche Bank AG is considering extensive cuts to its cash equities business in the U.S. as part of a wider restructuring of its investment bank, according to people familiar with the matter.

A decision could come as early as this week and may be communicated as part of a larger package of changes to the German lender’s securities unit, said the people, asking not to be identified because the details are confidential. No final decision has been made and the supervisory board will discuss the issue Wednesday ahead of the scheduled publication of the financial results for the first quarter the following day, according to the people.

A spokeswoman for Frankfurt-based Deutsche Bank declined to comment.

Cash equities, or the trading of regular stocks, has traditionally been a core business of investment banks, but regulation and technology have made it less profitable in recent years. A retreat from that business in the U.S., where Deutsche Bank has struggled to compete with the large Wall Street firms, would mark a strategic shift under new Chief Executive Officer Christian Sewing, who took over from John Cryan earlier this month.

In a first memo to staff, Sewing had taken a tough line on the bank’s stubbornly-high costs and said the bank will pull back from areas where it’s “not sufficiently profitable.”

Sewing and Garth Ritchie, the head of the investment bank who built his career in cash equities, are currently reviewing all operations of the division, particularly the U.S. operations, according to people familiar with the matter. The review, internally dubbed ‘Project Colombo’, examines each unit according to three or four criteria: how profitable it is, whether its products are critical for clients, how much regulatory capital it ties up, and how much investment it would need to be competitive in future.

Deutsche Bank’s global equities unit has been particularly weak in recent years. Revenue has fallen for 10 straight quarters, and the bank recently hired a former Goldman Sachs executive, Peter Selman, to restore growth. The unit’s U.S. arm cost five dollars for every four dollars of revenue it brought in last year, according to a report from JPMorgan Chase & Co. analysts led by Kian Abouhossein.

The cash equities business has suffered from a transition to automated trading and passive investing, both of which have cut the need for human input into day-to-day equities trading. What business remains has structurally “moved away from banks,” Cryan said on his last quarterly earnings call with analysts in February. Cryan had said at the time that the bank should take that into consideration when making decisions on where to cut and where to invest.

This article was provided by Bloomberg News.