Clients said to be sticking with Morgan Stanley even after leaked deal pipeline

Morgan Stanley's accidental disclosure of confidential information about its Asia deal pipeline has raised questions over the potential impact on its client relationships.

The disclosure may have carried competitive implications, but that does not necessarily mean Morgan Stanley will lose mandates as a result, according to people familiar with the matter, raising questions over how much lasting damage it could do to the bank's dealmaking business.

For instance, one buy-side source currently working with Morgan Stanley on deals said their firm isn't reconsidering its mandates with the bank.

The source did not expect the leak to have a significant impact, saying many of the deals disclosed were already widely known in the industry.

Another source, whose company is currently working with Morgan Stanley on a capital raise, said the company had no plans to reconsider the mandate over the incident and that the matter had generated little attention.

Still, the impact could vary depending on the client and how each viewed the incident, according to a banker familiar with the matter, offering a more cautious assessment of the potential fallout.

Some of the deals were still in the pipeline, and other banks could have used the information to check whether they had missed potential deals, the banker said.

While clients would likely be displeased that the incident occurred, it was unlikely to fundamentally damage their trust in Morgan Stanley, the banker added. 

It was reported last week that top bankers at Morgan Stanley accidentally sent some clients an internal list containing more than 100 deals the bank was working on or monitoring, mainly in Asia but also in Europe, the Middle East and Africa.

Morgan Stanley did not respond to CNBC's requests for comment.