Wall Street's most high-profile forward stock splits of 2025 are running circles around the S&P 500.Though artificial intelligence has been the hottest trend on Wall Street, it's far from the only catalyst responsible for sending the benchmark S&P 500 (^GSPC -0.13%) to new heights. Investor excitement surrounding stock splits in high-profile businesses has played a close second fiddle.A stock split allows a publicly traded company to cosmetically adjust its share price and outstanding share count by the sam ...