An earlier version misstated Putin's quote. He said the jet downing was a "stab in the back."
An earlier version had the wrong first name for Adam Ely.
Correction: S&P 500 had its best week since last December, not October.
Correction: This story has been updated to reflect that the S&P 500 had its best week since Dec. 19, 2014, not October.
An earlier version misspelled the last name of Diane Greene.
This report has been updated to reflect that the app was launched by XOPO in partnership with Xpress Money.
This version corrected the hyperlink to Foot Locker's stock price.
Correction: A previous version of this article misspelled Dennis Lockhart's name.
This story had been updated to reflect that American football player, Aaron Rogers, has signed a promotional deal with Adidas.