Updated from 2:15 p.m. ET, Wednesday, July 5. 

Stocks were largely higher on Wednesday, July 5, after Federal Reserve minutes reaffirmed the central bank's confidence in the U.S. economy's ability to withstand further tightening. 

The S&P 500 was up 0.2%, the Dow Jones Industrial Average was flat, and the Nasdaq added 0.8%.

According to the minutes, "several" Fed members back an unwinding of its balance sheet within a "couple of months." Fed members had previously said that the central bank could begin to unwind the $4.5 trillion in bonds it holds on its balance sheet as early as this year, and private economists have suggested it may start in October.

"Even though the Fed is intent to begin tapering soon, the road to a normalized balance sheet may be long with many pitstops on the way," said E*TRADE VP of investment strategy Mike Loewengart. "As is the case with many Fed actions, timing is everything."

Members also indicated a willingness to continue increasing interest rates at coming meetings even with recent softening inflation trends. The Fed has said it sees recent inflation weakness as transitory. 

"Most participants viewed the recent softness in these price data as largely reflecting idiosyncratic factors, including sharp declines in prices of wireless telephone services and prescription drugs, and expected these developments to have little bearing on inflation over the medium run," according to the minutes. 

The Federal Open Market Committee, the monetary policy arm of the U.S. central bank, raised interest rates by 25 basis points at its June 13-14 meeting, setting the target range at 1% to 1.25%. The increase was the Fed's second of the year and was taken as a vote of confidence in the U.S. economic recovery and future pace of growth.

Fed officials also telegraphed one more rate hike this year and three in 2018. Fed Chair Janet Yellen gave projections of median short-term rates as 1.4% at the end of this year; 2.1% at the end of 2018; and 2.9% at the end of 2019.

Gains in major indexes were also supported by tech stocks: The FAANG stocks -- Facebook Inc. (FB) , Amazon.com Inc. (AMZN) , Apple Inc. (AAPL) , Netflix Inc. (NFLX) , and Alphabet Inc. (GOOGL) -- rose, while the Technology Select Sector SPDR ETF (XLK) added 1.1%. 

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Crude oil prices were lower on Wednesday after Russia knocked down the chances of further cuts among the Organization of Petroleum Exporting Countries. Four government officials have ruled out deeper output reductions as a proposal when the group meets later in July, according to Bloomberg. OPEC and non-OPEC countries, including Russia, agreed in May to extend a production-cut agreement through March 2018. 

Investors also awaited delayed data on domestic inventories. Weekly stockpiles data from the Energy Information Administration have been pushed back a day because of the July 4 holiday and will be released on Thursday, July 6, at 10:30 a.m. ET.

West Texas Intermediate crude slid 4.1% to $45.13 a barrel on Wednesday, its largest one-day decline in one month. Energy stocks were the worst performers in U.S. markets. Major oil producers Exxon Mobil Corp. (XOM) , Schlumberger Ltd. (SLB) , Chevron Corp. (CVX) , and Halliburton Co. (HAL) were lower, while the Energy Select Sector SPDR ETF (XLE) declined 2.2%. Chevron and Exxon were among the biggest decliners on the Dow Jones.

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

Factory orders in the U.S. declined by 0.8% in May, according to the Census Bureau. The drop was slightly steeper than an anticipated 0.7% decline. New orders for manufactured goods have dropped for two months in a row. The measure decreased by 0.3% in April. 

Overseas, escalating tensions in Asia provided another check on Wall Street's momentum. North Korea said Wednesday that its intercontinental ballistic missile, fired into Japan's Exclusive Economic Zone early Tuesday, is able to carry a large nuclear warhead. The U.S. Defense Department believes the missile could reach as far as Alaska and possibly other parts of the North American mainland.

In response, U.S. Secretary of State Rex Tillerson called the missile firing a "new escalation of threat," and the U.S. has called for an emergency meeting of the U.N. Security Council. The missile firing comes days before of a meeting of G20 leaders where a discussion of the proliferation of weapons in Pyongyang will be on the agenda.

The North Korea threat could prevent the Dow from topping new records on Wednesday. The blue-chip index reached an intraday record in the shortened session on Monday, July 3, amid significantly lighter trading volume. Markets were closed on Tuesday in honor of the July 4 holiday. 

General Motors Co. (GM)  moved lower even after the automaker said sales in China had bounced back in June following two months of decline. GM reported sales of 285,191 vehicles in the region in June, 4.3% higher than the same month a year earlier. For the first six months of the year, sales fell 2.5%. The automaker is the second-largest maker of foreign vehicles in China.

GM also announced that it would introduce 10 new or updated models to the Chinese market in the next six months.

"We are pleased with the strong demand across our brands in June," regional chief Matt Tsien said in a statement. "Over the next six months, we will be launching 10 new and refreshed models to build on our momentum." 

U.S.-based Vantiv Inc. (VNTV) announced plans to purchase U.K. company Worldpay Group plc (WPG) in a deal worth $10 billion. JPMorgan Chase & Co. (JPM)  , which had also expressed interest in an acquisition, said afterward it didn't intend to bid.

"The potential merger creates a scale world-class payments group in a dynamic market, with deep payments capabilities, product and vertical expertise and strong distribution channels," the companies said. 

Baidu Inc. (BIDU) and Nvidia Corp. (NVDA) were higher after partnering to develop artificial intelligence technology. Baidu will rely on Nvidia chips for its cloud and self-driving car technology. 

Advanced Micro Devices Inc. (AMD) joined other chipmakers in gains after the Semiconductor Industry Association posted positive data for the industry. The group reported a 22.6% increase in global chip sales in May, its largest year-over-year increase since September 2010. 

Tesla Inc. (TSLA) shares slipped on the news that its second-quarter deliveries fell short of Wall Street estimates by 8%. The company said on Tuesday, July 4, that it delivered 22,000 cars in the second quarter, including about 12,000 of the Model S and about 10,000 of its Model X SUV. Wall Street had expected the company to deliver about 24,000 in the quarter.

Oracle Corp. (ORCL) was higher on Wednesday after being upgraded to overweight from sector weight at KeyBanc. Analysts are confident in the company's ability to sell existing customers on its cloud services. 

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