However, for now, the multi-asset strategy is clearly the domain of active managers.

FORBES: The 'Secret Sauce' Of A Mutual Fund With A One-Track Mind

But trusts are now warning that the days of runaway profits may be over as the government moves to restrict lending in areas where the trusts have been most active and as new regulations allow other financial institutions to provide services that were once the primary domain of trusts.

WSJ: Chinese Trusts Draw Big Inflows