Investors may feel like May has been a roller coaster when it comes to tariff developments, but major stock indexes are looking at solid performances for the month that's about to

close. As of Thursday, the S&P 500 was on pace for its best monthly performance since November 2023, with a gain of 6.03%, or 335.68 points to 5,904.74. Its May performance is on pace

for the best since May 1990, when it rose 9.2%. The Dow Jones Industrial Average was up 1,382.95 points, or 3.4%, at 42052.31 as of Thursday for May, on track for its best monthly

performance since January 2025. That will also mark its strongest May performance since May 2020, when it rose 4.26%.