The bulls were once again unable to build on late day gains. The good news for the bulls is that it still seems like the bears are fighting this rally tooth and nail. It would actually be better for the bears if we saw some capitulation.
I believe Berkshire Hathaway is being added to the S&P 500 tomorrow. Shares of other S&P 500 companies will need to be sold in order to accommodate the Berkshire addition. That is a negative for the S&P 500. However, the closing of the Burlington Northern deal is a positive. That will be the wild card for tomorrow.