Why oil prices matter so much to DuPont, and the big earnings report to watch tonight

Every weekday, the CNBC Investing Club with Jim Cramer releases the Homestretch — an actionable afternoon update, just in time for the last hour of trading on Wall Street. The S & P 500 and Nasdaq are making new all-time highs Tuesday, but the market is trading off its best level of the session. Optimism that the U.S. and Iran could soon reach a peace deal that reopens the Strait of Hormuz is providing a boost, but there's still plenty of uncertainty on whether an agreement will be made. Still, U.S. oil benchmark WTI crude and bond yields are lower on the day — a positive for equities, despite crude rebounding a few dollars from its morning lows below $90 a barrel and the 10-year Treasury yield climbing back above 4.5%. As of this writing, the low of the session for the 10-year yield is 4.475%. The AI theme was a big driver of the market's gains, with tech and industrials the two top-performing sectors Tuesday. Leading the charge was memory chipmaker Micron , which soared 19% in reaction to a bullish note by analysts at UBS. The massive rally vaulted Micron's market capitalization over $1 trillion, the 13th publicly traded company in that camp. Shares of Micron have now tripled this year and are up over 800% in the past 12 months. DuPont was a notable non-AI gainer in our portfolio on hopes for an Iran deal, adding over 2% to roughly $49.25. …