Deutsche swapped billions of euros in securities for cash and government bonds, the sources told Reuters, which count towards its liquidity coverage ratio (LCR). This is meant to determine the extent of a bank's access to ready cash to fund outflows such as depositor withdrawals. The trades caught the attention of European Central Bank (ECB) supervisors, who questioned Germany's largest lender about them during routine exchanges, the sources said. Even without the trades, Deutsche would have far exceeded a 100% LCR regulatory requirement and overshot its own target, the sources said, adding that its liquidity is not a concern. Deutsche's trades helped it raise its LCR to 143% at March 31, its first-quarter earnings report published in April showed.

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