Principles-based rule provides little detail on how to comply.
SEC says BMO failed to disclose conflicts of interest when it put customers into proprietary funds.
Of the firms involved, 16 self-reported and avoided civil penalties; another must pay a $300,000 fine.
The asset managers still seeking SEC approval have tried to differentiate their funds from those that ended up on the scrap heap.
The actively managed funds would keep some of their holdings hidden.
SEC eases rules that the industry says slowed the issuance of new exchange-traded funds.
Older investors and retirement savers could suffer, they say, but alternatives industry representatives tout portfolio diversification advantages.
Strong Investment Management had been charged with fraud in a "cherry-picking" scheme.
Airline baggage handler leaned on Facebook to promote his advisory practice, 'Bored at Work.'
Democratic Rep. Maloney: 'It would weaken long-standing fiduciary standard for investment advisers.'
Finra spokeswoman: Case staff advise arbitration panels on rules, procedures
Investors cannot wait for the lawsuits to work their way through the courts.
Ruling could help them construct trusts that avoid state tax collection efforts.
IFS Securities reps are talking to other firms while some managers relocate.
Sigma Planning failed to disclose conflicts related to 12b-1 fees: SEC.
Legislation unlikely to get through Senate but sends a message for potential future action.
Economists determining how much someone is worth could lead to contentious standoffs between taxpayers and the IRS.
Labor Secretary nominee tells lawmakers ethics rules could limit his work on matters connected to his former clients.
SEC: Firm was swapping bonds for clients with no alleged benefit to the customer.
She led merger of disparate operations, set principles for actions