According to FINRA, Joao Amorim Pinto was suspended for three months for willfully violating Regulation Best Interest and FINRA suitability rules by recommending a series of trades in a 68-year-old retiree's account that were excessive, unsuitable, and not in the customer's best interest.

Pinto recommended high frequency trading in the customer's account, and the customer routinely followed his recommendations. As a result, Pinto exercised de facto control over the customer's account. Pinto's trading in the customer's account generated total trading costs of $92,237, including $83,484 in commissions, and caused $141,051 in realized losses.

Excessive trading, also known as churning when a broker has control over an account, involves trading that is excessive in light of the customer's investment objectives and financial situation. The trading is designed to generate commissions for the broker rather than to benefit the customer. In this case, a 68-year-old retiree suffered over $141,000 in realized losses while Pinto earned over $83,000 in commissions - a clear example of the broker profiting while the customer lost money.

The high frequency of trading and the fact that Pinto exercised de facto control by making recommendations that the customer routinely followed without question indicates a pattern of churning. Retirees are particularly vulnerable to excessive trading because they typically cannot afford to lose principal and often trust their brokers without questioning recommendations.

Regulation Best Interest requires brokers to act in the customer's best interest when making recommendations, which includes considering whether the frequency of trading serves the customer's interests rather than just generating commissions. This case demonstrates a clear violation of that standard.

Investors, especially retirees, should be wary of frequent trading in their accounts and should pay attention to commission costs. If trading seems excessive or commissions are mounting while the account value declines, it may indicate churning and should be immediately questioned.