Markets Jitter as Mega-Cap Earnings and Fed Meeting Set the Stage

The S&P 500 and Nasdaq are poised for gains as mega-cap companies report earnings, while a proposed Medicare payment shift pressures health insurers. Boeing, UPS, and GM report positive earnings, and airlines face weather-related challenges. The Fed's policy meeting and consumer confidence data are also in focus.

Investors are closely watching market movements as the S&P 500 and Nasdaq prepare for gains driven by mega-cap earnings, while the Dow faces pressure from a drop in UnitedHealth shares due to a Medicare payment proposal.

Despite Boeing's swing to profit and gains at UPS and GM, airlines face hurdles with widespread cancellations due to harsh winter weather. Meanwhile, economic indicators such as parcel carrier revenues remain a critical tool for assessing the U.S. economic health.

Attention turns to the Federal Reserve's meeting as investors anticipate stable interest rates, with additional focus on consumer confidence figures and the looming government funding deadline amid rising scrutiny of Trump's immigration policies.