Facebook Prepares for Earnings and 4 Other Stories You Must Know Wednesday

Here's everything you must know before Wednesday's opening bell:

1. Shire said it was willing to recommend a revised $64 billion offer from Takeda Pharmaceutical .

2. Credit Suisse posted its strongest quarterly earnings in three years as new cash poured into its wealth management division.

3. Texas Instruments' first quarter profit jumped 37%.

4. Investors will analyze earnings from Facebook , Qualcomm and more.

5. U.S. stock futures pointed toward further losses and global stocks slumped.

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