Gundlach says the global stock market is signaling 'something bad' is happening

``"I said [before] ... if the global stock [market] is going to take out the low and put in a new low, something bad must be happening. I don't think the U.S. can hold in there," he said Thursday on CNBC's "Fast Money Halftime Report." "Well what happened as rates broke to the upside ... the global stock market ex-U.S. did take a new leg down and did go to a 12-month low. And it's interesting the S&P 500 did what I said. ... That is join the global stock market on the way down."''