U.S. stocks fell on Wednesday led by megacap stocks, as optimism around the Ukraine-Russia peace talks faded and concerns grew over the prospect of rapid rise in interest rates hurting economic growth. The Kremlin said there was no sign of a breakthrough yet even though it welcomed Kyiv’s move to set out its demands in written form. Markets had rallied in the previous session after Russia pledged to cut down military operations around Kyiv and in northern Ukraine. Contrary to the promise, Russian forces on Wednesday bombarded the outskirts of Kyiv. Worries about the fallout of the nearly five-week long invasion and rising rates have put the Wall Street indexes on course for their worst quarter since the selloff during the peak of the pandemic in 2020. Still, the indexes are set to end March higher, with the S&P 500 erasing more than half of its quarterly losses in the …