Credit Suisse saw CHF 61.2bn of asset outflows in Q1 2023, which were "most acute" in the days immediately after its buyout by UBS was announced.
Its flagship wealth management wing saw its assets under management drop by almost 29%, versus the same period last year, down CHF 502.5bn.
Credit Suisse said the results were mainly impacted by actions leading up to and stemming from the planned merger between itself and UBS, which caused a "significant deposit and net asset outflows".
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The Swiss giant collapsed in March this year, after its delayed annual results revealed the shaky ground the already scandal-ridden bank was on, which combined with the anxieties of a simultaneous regional banking run and collapse in the US spill,Credit Suisse began haemorrhaging client money.
This resulted in the emergency buyout of Credit Suisse by UBS for $3.3bn, six days after its delayed results came out.
These latest set of results are expected to be the bank's last ever set of financial results, as its forced sale to rival Swiss bank UBS is likely to be completed soon.
Credit Suisse said it would be working "closely with UBS to ensure that the transaction is completed in a timely manner", as it remained subject to "customary closing conditions".
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The bank reported an adjusted CHF 1.3bn pre-tax loss for Q1, and on a non-adjusted basis, net income of CHF 12.4bn for the period, was distorted by a CHF 15bn accounting gain it made when AT1 bondholders were controversially wiped out as part of the rescue by UBS.
Discussing future results, Credit Suisse said the firm's actual results will depend on a number of factors, including the results of the ongoing litigations against it, any regulatory actions taken among other aspects.
The bank added it was "taking proactive measures to protect its client franchise, manage risks and facilitate operational stability".
