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

1. -- U.S. stock futures were tumbling on Thursday, Oct. 19, and European stocks sank after Spain's central government said it would assume control of the region of Catalonia after its president appeared to defy Madrid's deadline on dropping its call for independence.

"The government will continue with the procedures set out in Article 155 of the Constitution to restore the legality of self-rule in Catalonia," the Spanish government said in a statement, adding that suspension procedures will begin Saturday, Oct. 21.

Shares in Asia finished the session mostly lower after data showed that China's quarterly growth slowed slightly but was in line with expectations.

For U.S. investors, the economic calendar on Thursday includes weekly Jobless Claims at 8:30 a.m. ET, and the Philadelphia Fed Business Outlook Survey for October at 8:30 a.m.

U.S. stocks on Wednesday, Oct. 18, finished in record territory with the Dow Jones Industrial Average closing above 23,000 for the first time ever as strong earnings from International Business Machines Corp. (IBM) - Get Report  pushed the blue-chip index higher. The S&P 500 added 0.07% for a record close. The Nasdaq rose 0.01% to a fresh record by the close of trading.

Verizon Communications Inc. (VZ) - Get Report  reported third-quarter adjusted earnings of 98 cents a share, topping forecasts by 1 cent. Revenue of $31.72 billion also topped consensus estimates.

The stock dipped slightly in premarket trading on Thursday.

Earnings are also expected Thursday from PayPal Holdings Inc. (PYPL) - Get Report , Travelers Cos. (TRV) - Get Report , Alliance Data Systems Corp. (ADS) - Get Report , AthenaHealth Inc. (ATHN) - Get Report  and KeyCorp (KEY) - Get Report  .

KeyCorp is a holding in Jim Cramer's Action Alerts PLUS Charitable Trust Portfolio.Want to be alerted before Cramer buys or sells the stock? Learn more now.

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2. -- Shares of eBay Inc. (EBAY) - Get Report  declined 6.5% in premarket trading after the online marketplace reported mixed third-quarter financial results. 

For the quarter, eBay reported adjusted earnings of 48 cents a share on revenue of $2.4 billion. Analysts polled by FactSet were expecting adjusted earnings of 48 cents share on revenue of $2.37 billion.

The company said it fourth-quarter revenue of between $2.58 billion and $2.62 billion, and adjusted earnings per share of between 57 cents and 59 cents. Analysts project fourth-quarter revenue of $2.58 billion and adjusted earnings of 60 cents.

Those scanning the many news headlines stating eBay's shares were selling off due to a disappointing profit outlook could be forgiven for thinking the company's latest earnings report acts as fresh proof that Inc. is eating eBay's lunch. But TheStreet's Eric Jhonsa said the truth is a little more complicated. 

Competitively, eBay still faces big challenges but seems to be in slightly better shape than it was at the start of the year, particularly overseas. The trouble is that eBY's top-line improvement has a bottom-line price attached to it.

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3. -- American Express Co. (AXP) - Get Report was falling 1.5% in premarket trading after CEO Kenneth Chenault, who has led the lender for 16 years, announced he would be stepping down.

Chenault, 66 years old, who also serves as board chairman, will be succeeded by Vice Chairman Steve Squeri on Feb. 18, the New York-based company said in a statement on Wednesday. Squeri, who oversees operations including technology as head of the global customer services group, has worked at American Express since he took a management position in the traveler's checks business in 1985.

AmEx on Wednesday posted 19% growth in third-quarter profit. Net income of $1.4 billion, or $1.50 a share, outpaced the $1.48 average of analysts surveyed by FactSet as cardholder spending climbed. The company said it expects earnings for the year of $5.80 to $5.90 a share, while analysts expect earnings of $5.74. 

4. -- Shares of Gilead Sciences Inc. (GILD) - Get Report were rising 3% in premarket trading on Thursday after the Food and Drug Administration approved Yescarta, Gilead's lymphoma therapy drug.

The treatment will cost $373,000 per patient, according to Gilead.

The drug was developed by Kite Pharma, which Gilead acquired earlier in October.

The treatment uses the same technology, called CAR-T, as the first gene therapy approved in the U.S. in August, a treatment for childhood leukemia from Novartis Pharmaceuticals.

5. -- The bidding for Inc.'s (AMZN) - Get Report second headquarters closes on Thursday.

Amazon announced in September that it would be accepting bids. It has pledged to invest more than $5 billion and hire 50,000 people for its second headquarters. According to reports, more than 100 cities and counties have expressed interest in placing a bid.

Amazon said it would announce the winning bid in 2018.

This story has been updated to include earnings from Verizon.

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