Good Evening,
I used the example algorithm for my Seminar Thesis a week ago. Normally the Algorithm should outpeform the benchmark.
Since few days the algorithm doesn't work anymore, only for Stocktweets. But there the Benchmark outperforms the algorithm. I didn't had these problems a few days ago.
https://www.quantopian.com/data/psychsignal/aggregated_twitter_withretweets_stocktwits