Interest rates could be heading significantly higher, the editor and publisher of The Gartman Letter said Monday.
"I think that we've seen a massive top taking place here," Dennis Gartman said. "I think you have to be selling the bond market at the long end of the curve. I think we have a long-term change in the sentiment in the bond market, and I think you have to be a seller of it."
On CNBC's "Fast Money," he said that the nomination of Federal Reserve Vice Chair Janet Yellen to succeed Chairman Ben Bernanke could coincide with the end of a 31-year bull market.
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