Stocks Rally as Fed Meets, Tech Giants Report Earnings
- Dow Jones gains nearly 500 points as Fed prepares for meeting
- GM reaches tentative labor deal with auto workers union
- Apple expected to unveil new iMac at event, earnings due Thursday
- Tesla rival BYD hits record profit as EV makers slash prices
- AMD, Qualcomm fall ahead of earnings reports this week
- Western Digital to separate flash memory and HDD businesses