Can a retail investor make money based on after-hours trading based on Truth Social Posts regarding the War with Iran?

Seconds after President Trump made a Truth Social Post saying there would be a 2-week truce between the USA and Iran, the S&P 500 Funds in after-hours trading went up 2%. Could a retail investor who had his finger on the button make any money on these types of posts? Or would the institutional investors have already bought in less than a second and were already on their way to making lots of money? By the time the stock market opens, the bump based on the 2-week truce is already in the stock price of the S&P 500. (Yes, the stock price increases due to the truce, which helps the stock price for all investors, but moving the second the truce is announced would give you a double advantage.)