Interactive Brokers shares dropped 3.4% after missing S&P 500 inclusion and a Citi downgrade to Neutral due to valuation concerns. However, Redburn Atlantic raised its price target, maintaining a bullish stance. A survey revealed advisors are increasing global investments, bearish on the US. The stock closed at 204.67, down 3.38% despite market gains, sparking debate on whether the dip is a buying opportunity.