Stocks fell sharply on Friday after Russian President Vladimir Putin said Russia would sell arms to Syria, even if the U.S. conducted strikes on the country.
But just as quickly as they fell, they rebounded somewhat, as President Barack Obama held a press conference where he tried to smooth over the disagreements over Syria.
Twitter tracked the market's move and the news from the G-20 minute by minute.
Some said Putin's comments changed the game entirely.
But then Obama took the podium and tried to calm the mood a little.
Some said the president tried to put the situation in a more historical context.
But the bottom-line conclusion from his news conference was this: we still don't know what will happen next.