‘All-In Wednesday’ to Test Stock Market Where Everyone’s Long

Traders work on the floor of the New York Stock Exchange

Photographer: Michael Nagle/Bloomberg

Investors who have been feasting on stocks will know by this evening whether the party will continue.

Wednesday marks a make-or-break day for US equities as a Federal Reseve interest-rate decision will be quickly followed by mega-cap companies Microsoft Corp., Meta Platforms Inc., Google-parent Alphabet Inc. and Amazon.com Inc. all reporting quarterly results after the closing bell. Those four names alone account for roughly one-fifth of the S&P 500’s market capitalization and have provided a third of the index’s gains since its recent low on March 30.