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Hello, this is Dylan Butts writing to you from Singapore. Welcome to another edition of CNBC’s Daily Open.

Markets appear to think a deal between Washington and Tehran is within reach.

Stocks extended their rally again on Tuesday, with the S&P 500 pushing toward record territory as investors bet that U.S.–Iran negotiations are gaining traction.

But that optimism might be running ahead of reality. Talks have already stalled once, and instead of a full reopening, the Strait of Hormuz is now under a new U.S. blockade.