* Global markets fell on Tuesday, with the Dow Jones (-0.24%), S&P 500 (-0.64%), and Nasdaq (-0.74%) all closing lower. Concerns

* Global markets surged on Friday, with the Dow Jones (+1.39%), S&P 500 (+1.47%), and Nasdaq (+1.51%) extending their rallies after

* Wall Street extended its rally on Thursday, with the S&P 500 rising 0.6% to notch its longest winning streak since August, while

* Wall Street closed out a volatile April with a sharp intraday rebound, as the S&P 500 rose 0.15% after falling more than

* Wall Street extended its winning streak to six sessions on Tuesday, with the S&P 500 (+0.58%), Dow (+0.75%), and Nasdaq (+0.