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Art Cashin said the stock market is "hypnotized" by the yield on the U.S. 10-year note.
Cashin, UBS' director of floor operations at the NYSE, told CNBC's Bob Pisani around midday the 10-year "keeps waffling around this 2.6 (percent) level. The market seems to take it, under 2.6: risk profile increased, be a little careful. Over 2.6, less risk, be a little happy."
With the yield staying right around 2.6 percent, "it's quite frustrating. They're not moving clearly enough."
—By CNBC's Alex Crippen. Follow him on Twitter @alexcrippen.