CNN-

Wells Fargo is once again being accused of misconduct, this time because it allegedly used complex financial investments to take advantage of mom-and-pop investors.

The Securities and Exchange Commission said on Monday that between 2009 and 2013, Wells Fargo (WFC) reaped large fees by “improperly encouraging” brokerage clients to actively trade high-fee debt products that were intended to be held to maturity.

Wells Fargo Advisors, the bank’s brokerage division, agreed to pay a $4 million penalty over its handling of the products, known as market-linked investments. The bank must also return $930,377 of ill-gotten gains — plus $178,064 of interest.

[CNN]