Here are five things you must know for Thursday, Jan. 4:

1. -- Tesla Whiffs

Tesla Inc.  (TSLA) - Get Report shares were falling 2.5% in premarket trading Thursday, Jan. 4, after the company disclosed that it delivered just 1,550 Model 3 electric vehicles in the fourth quarter, far below the roughly 4,000 vehicles that analysts had anticipated.

The electric carmaker also said it produced 2,425 Model 3 cars in the three-month period and pushed back its ambitious goal of producing 5,000 Model 3 cars a week until the end of the second quarter.

The report suggested Tesla was still having trouble ramping up production of the less expensive Model 3 electric car that much of the company's future growth is tied to.

2. -- Intel Responds to Reports of Security Flaw

Intel Corp. (INTC) - Get Report , responding to a report that its chips contained a feature that could be vulnerable to hacking, said many types of processors were affected by the security flaw, and that it was working with Advanced Micro Devices Inc. (AMD) - Get Report , SoftBank Group Corp.'s ARM Holdings and operating system vendors to address the issue.

A story from The Register on Tuesday, Jan. 2, suggested the problem was specific to Intel central processing units, and that operating system patches meant to fix the issue could yield performance hits of 5% to 30%, depending on the workload in question. It also noted remarks from an AMD engineer that suggested AMD's CPUs don't possess the security flaw.

Intel said Wednesday, Jan. 3, that "any performance impacts are workload-dependent, and, for the average computer user, should not be significant and will be mitigated over time."

AMD responded shortly thereafter asserting there's "near zero risk to AMD processors at this time" on account of the issue. The company later defended its claim with findings from a Google security research team that originally uncovered the security vulnerabilities last year.

Intel shares tumbled 3.4% on Wednesday and were down another 2.4% in premarket trading on Thursday. AMD shares jumped 5.2% on Wednesday and were rising a further 2.9% in premarket trading.

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3. -- Dow 25,000 Anyone?

U.S. stock futures pointed to gains for Wall Street on Thursday and suggested it was possible the Dow Jones Industrial Average could cross 25,000 after another record close -- at 24,922.68 -- in the previous session.

The Dow, the S&P 500 and Nasdaq jumped to new records on Wednesday, as global markets continued to ride a bullish wave powered by synchronized growth and accelerating corporate profits.

The Dow rose 0.4% on Wednesday, the S&P 500 rose 0.64% to 2,713, and the Nasdaq, which surpassed 7,000 for the first time on Tuesday, Jan. 2, rose 0.84% to 7,065.

The economic calendar in the U.S. on Thursday includes the ADP National Employment Report for December at 8:15 a.m. ET, weekly Jobless Claims at 8:30 a.m., and Oil Inventories for the week ended Dec. 29, at 11 a.m.

Walgreens Boots Alliance Inc. (WBA) - Get Report  posted fiscal first-quarter earnings that were better than Wall Street forecasts. The stock gained 0.6% in premarket trading.

Earnings are also expected Thursday from Sonic Corp. (SONC) , Monsanto Co. (MON) , and PriceSmart Inc. (PSMT) - Get Report .

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4. -- AT&T to Roll Out 5G Mobile Internet

Wireless giant AT&T Inc. (T) - Get Report said Thursday it would roll out fifth-generation mobile internet service in a dozen cities in the U.S. by late 2018.

AT&T's announcement came after international wireless standards for the network were agreed to in December.

"We're moving quickly to begin deploying mobile 5G this year and start unlocking the future of connectivity for consumers and businesses," said Melissa Arnoldi, president of AT&T technology and operations, in a press release.

"With faster speeds and ultra-low latency, 5G will ultimately deliver and enhance experiences like virtual reality, future driverless cars, immersive 4K video and more," Arnoldi added.

AT&T shares were up 0.5% in premarket trading on Thursday.

5. -- Powerball Jackpot Jumps to $550 Million

The Powerball jackpot has grown to about $550 million -- the eighth-largest lottery prize ever in the U.S. -- for the drawing on Saturday, Jan. 6, since no winning tickets were sold on Wednesday.

Lottery players also can try their luck in the Mega Millions game on Friday, Jan. 5 -- the prize for that drawing will be $418 million.

This article has been updated to include earnings from Walgreens Boots Alliance.

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