Merger and acquisition deals in wealth management spiked to a new high last year as smaller private banks and wealth firms were snapped up by bigger groups in an effort to weather increasingly stringent regulatory costs and pressures.

The number of deals reached a new high of 124 in 2015, up significantly from the 83 seen in the previous year. But the size of assets under management (AUM) that changed hands fell by over $50 billion as smaller group acquisitions were the main focus, according to data from wealth management data research firm, Scorpio Partnership.