The maintenance of an Outperform rating by a reputable analyst firm like Keefe, Bruyette & Woods generally signals confidence in the company's future performance, which could be positive for investor sentiment. However, the reduction in the price target may temper expectations slightly, indicating that while the firm remains optimistic about Invesco's prospects, it has adjusted its valuation in light of new information or market conditions. The potential upside of 21.72% from the current share price to the new target could attract investors looking for growth opportunities.