I've just gotten started using Quantopian, and I love it so far. Just thought I'd try my hand at posting a short, simple algorithm that I managed to put together as I was learning to use all the features. The theory is that there is some correlation between the market and the current week's Presidential Approval Rating (statistics for President Obama available from Gallup). I hypothesized that there would be a positive relationship. The result is: if the approval rating is higher than 50% then buy shares, if the approval rating is lower than 50% then sell. After realizing this could be a pretty aggressive and drastic strategy, I only buy/sell half as many shares as possible.
As a first time user/poster, I know this won't be the most complicated or even interesting algorithm. This is exactly why I'd love to hear some feedback, advice, and suggestions to help me out. Also, I'd love to hear some other related ideas as well.