Prior to the first Presidential debate, we asked investors who they were voting for in the upcoming election and also who they thought would win the election. Those results showed that 52% were voting for Romney, 34% were voting for Obama, and 14% chose the "Other/Not Voting" option. When asked who they thought would win the election, however, 71% said President Obama would win while just 29% said Romney would win.
We ran the same two polls on Monday (post debate) to see how sentiment towards the two candidates might have changed. As shown below, Romney picked up 2 percentage points on the question of "who will you be voting for," while Obama lost one point. On the question of "who will win the election," Obama lost 11 points (down from 71% to 60%), while Romney gained 11 points (up from 29% to 40%).
Based on these post-debate poll results, it appears as if investors continue to favor Romney, and while they still think he's an underdog, Romney increased his chances of winning by quite a bit.
Below are the pre-debate poll results (link):