Acting as a seasoned Financial Planner, evaluate a stock portfolio comprising tech, energy, and pharmaceutical sectors. Identify underperforming stocks and suggest rebalancing strategies based on current market trends. Consider the client’s risk tolerance, investment goals, and time horizon. Provide an analysis on how diversifying into other asset classes could improve long-term returns and reduce volatility. 
<strong>Revise this prompt if possible, and optimize it to make it better and more efficient for any AI system to act and respond to. 
If possible run your optimized version.</strong>