Updated from 6:04 a.m. EDT to include earnings from Halliburton and Morgan Stanley.

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Here are five things you must know for Wednesday, Oct. 19:

1. -- U.S. stock futures turned mixed Wednesday following gains during the previous session that were driven by strong earnings from Netflix (NFLX - Get Report) , UnitedHealth (UNH - Get Report) and others.

European shares fell and Asian shares ended mostly higher after China reported its economy expanded at a steady 6.7% in the third quarter.

The economic calendar in the U.S. on Wednesday includes Housing Starts for September at 8:30 a.m. EDT, and the Federal Reserve's 'Beige Book" at 2 p.m.

San Francisco Fed President John Williams is scheduled to speak about diversity in the financial system in Newark, N.J., at 8:45 a.m., while Dallas Fed President Rob Kaplan will make a speech in Fort Worth, Texas, at 1:30 p.m. On Wednesday evening, New York Fed President William Dudley will speak at the Lotos Club in New York.

Halliburton (HAL - Get Report)  swung to a profit of 1 cent a share in the third quarter compared with a year-earlier loss of 6 cents. Revenue fell to $3.833 billion from $5.582 billion.

Analysts were looking for a third-quarter loss of cents a share on revenue of $3.906 billion.

Morgan Stanley (MS - Get Report)  reported third-quarter earnings of 81 cents a share, topping analysts' forecasts of 63 cents. Revenue in the quarter was $8.91 billion; analysts were expecting $8.13 billion.

The stock was rising 1% in premarket trading.

Earnings are also expected Wednesday from eBay (EBAY - Get Report) , Seagate (STX - Get Report) , American Express (AXP - Get Report) , Kinder Morgan (KMI - Get Report) and Abbott Labs (ABT - Get Report) .

2. -- Yahoo! (YHOO) earned $163 million, or 17 cents a share, in the third quarter, more than doubling profit from a year earlier, as it benefited from the layoffs of about 2,200 workers, or about one-fifth of its workforce, during the past year.

Adjusted earnings of 20 cents a share topped analysts' estimates of 14 cents.

Yahoo!'s revenue in the quarter fell 14% to $857 million after subtracting advertising commissions, marking the fourth consecutive quarter that Yahoo!'s net revenue has dropped by at least 10%.

The Internet company didn't hold a conference call following the earnings and didn't disclose further details about Verizon's (VZ - Get Report) agreement to purchase the company for $4.8 billion.

Yahoo! CEO Marissa Mayer said only that "we are busy preparing for integration with Verizon."

Investors have speculated that the deal might fall apart after Yahoo! recently disclosed a 2014 data breach that impacted more than 500 million accounts.

The stock was rising 1% in premarket trading on Wednesday.

3. -- Months before Salesforce.com (CRM - Get Report) considered buying Twitter (TWTR - Get Report) , the company was looking at more than a dozen acquisition targets that didn't include the social-media giant, according to an internal presentation for its board members, The Wall Street Journal reported.

The presentation came from emails of former Secretary of State Colin Powell that were published in September by DCLeaks, an anonymous hacker group, according to the Journal. Powell sits on Salesforce's board.

Titled M&A Target Review and marked "draft and confidential," the 60-slide document identified 14 possible targets, from Adobe Systems to Pegasystems. The list included at least two companies that Salesforce has shown interest in since May: Demandware, which Salesforce in June agreed to acquire for $2.8 billion, and LinkedIn (LNKD) , for which it lost a bidding war to Microsoft that same month.

A spokeswoman for Salesforce described the presentation to the Journal as a "landscape" of possible publicly owned targets at the time it was created and stressed that the appearance of company names on the list didn't mean Salesforce ever intended to buy them.

4. -- Intel (INTC - Get Report)  posted third-quarter revenue of $15.8 billion and adjusted earnings of 80 cents a share, topping the consensus estimate for revenue of $15.6 billion and profit of 72 cents. Revenue rose 9% annually on a reported basis, and 6% when backing out the $425 million revenue made possible by Intel's $16.7 billion purchase of Altera.

"These results show Intel's continuing transformation to a company that powers the cloud and billions of smart, connected devices," said Brian Krzanich, Intel's CEO, in a statement.

However, Intel guided for fourth-quarter revenue of $15.7 billion (plus or minus $500 million). That's below a $15.86 billion consensus estimate at the midpoint, and (though baking in Altera's sales) implies 5% growth. The company also forecast its gross margin would slip to 63% (plus or minus 2%) from 64.8% in the third quarter and 64.3% in the fourth quarter of 2015. Intel blamed costs related to ramping new memory products/plants and factory startup costs for Intel's 10-nanometer manufacturing process; the first 10-nm processors are due in the second half of 2017.

The stock tumbled 4.6% in premarket trading.

5. -- The head of Alphabet's (GOOGL - Get Report) Project Wing, the drone initiative started by Google in 2012, is stepping down, according to a report from MarketWatch.

Dave Vos is stepping down from his lead project role at X, formerly known as Google X, to "pursue new opportunities," a spokeswoman for Project Wing confirmed Tuesday.

 Astro Teller, current CEO of X, will step in as interim lead during the search for a permanent leader, MarketWatch reported. 

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