April 23 Premarket Briefing: 10 Things You Should Know

Updated from 6:35 a.m. EDT

Here are 10 things you should know for Wednesday, April 23:

-- U.S. stock futures were pointing to a mixed start for Wall Street on Wednesday following weak manufacturing data from China.

European stocks were mixed. Asian shares ended the session mostly lower but Japan's Nikkei 225 index bucked the trend and rose 1.1%.

A preliminary survey of Chinese manufacturers by HSBC showed slight improvements in prices and demand, but contractions in new export orders and employment in April.

2.-- The economic calendar in the U.S. on Wednesday includes new-home sales for March at 10 a.m. EDT.

3.-- U.S. stocks on Tuesday climbed amid pharmaceutical deals headlines and better-than-expected existing-home sales.

The Dow Jones Industrial Average closed up 0.4% to 16,514.37, the S&P 500 added 0.51% to 1,879.55 and the Nasdaq rose 0.97% to finish at 4,161.46.

4. -- Apple (AAPL), the iPhone and iPad maker, is forecast after Wednesday's closing bell to post fiscal second-quarter earnings of $10.18 a share on revenue of $43.53 billion.

"With the much anticipated iPhone 6 due for release later this year, we believe many potential iPhone buyers will pause before the major upgrade," said Brian Marshall, an analyst at ISI Group.

Apple shares closed Tuesday at $531.70; the stock is down a little more than 5% in 2014.

The stock was trading at $531.28 in premarket trading on Wednesday.

5. -- Social media giant Facebook (FB) is expected Wednesday by analysts to post first-quarter earnings of 24 cents a share on revenue of $2.36 billion.

Credit Suisse analyst Stephen Ju on Tuesday upgraded Facebook to "outperform" from "neutral," raised his price target to $87 from $65, and said he believes the company can earn vastly more from its 1.2 billion users with a combination of existing and future products.

Shares of Facebook rose 0.6% in premarket trading to $63.39.

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