Global investor optimism has reached its highest point since July 2021, according to Bank of America's January fund manager survey. The survey highlights a significant surge in expectations for global economic growth, with the cash holding ratio dropping to a historic low of 3.2%. Protective measures against market corrections are at their lowest since January 2018, and the bull-bear indicator has climbed to 9.4, indicating an "extremely bullish" sentiment. The survey advises increasing risk hedging and allocations to safe-haven assets amid rising optimism. Geopolitical conflicts have emerged as the top tail risk for the first time since October 2024, followed by concerns over a potential AI bubble.