German lender Deutsche Bank's (DB) - Get Report planned listing of its asset management unit is unlikely to come before the first half of next year, and could potentially be later, Reuters reports.

The German bank is said to require additional time to refine and convince investors of its business strategy.

Deutsche Bank announced its intentions to bring the unit public in March in conjunction with its restructuring efforts aimed at stimulating the bank's fortunes following expensive lawsuits and trading scandals.

A number of investors have also said they would prefer a greater focus on passive investments or exchange traded funds (ETFs) at Deutsche's asset management arm, whereas its primary business is currently with actively managed funds. 

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