India, June 20 -- European stocks may open on a positive note Friday after U.S. President Donald Trump said he would decide within two weeks whether to authorize a direct U.S. military strike on Iran, citing a "substantial chance of negotiations."

Trump was holding off on final decision to see if Tehran gives up its nuclear program, the Wall Street Journal reported, citing sources.

Separate reports suggest that the U.S. will launch strikes against Iran only if the so-called "bunker buster" bomb was guaranteed to destroy Iran's deep-underground Fordow nuclear site.

U.S. stock futures dipped on concerns the Israel-Iran conflict could lead to a renewed spike in inflation and dent U.S. economic growth.

Asian markets were mixed as China kept...