U.S. stocks closed at record high on Wednesday as investors focused on the third quarter earnings reports and the newly released Fed minutes.

The Dow Jones Industrial Average added 42.21 points, or 0.18 percent, to 22,872.89. The S&P 500 was up 4.60 points, or 0.18 percent, to 2,555.24. The Nasdaq Composite Index increased 16.30 points, or 0.25 percent, to 6,603.55.

Minutes from the Federal Open Market Committee meeting in September show that a December interest rate hike is likely.

However, there was a debate among officials over whether inflation was because of one-time factors or persistent forces.

In corporate news, BlackRock and Delta Air Lines both reported quarterly results that beat expectations.

BlackRock reported third quarter earnings per diluted share of 5.78 dollars, up 10 percent on a year-over-year basis. Shares of Blackrock increased 1.78 percent to trade at 473.76 dollars apiece.

Delta Air Lines said its quarterly adjusted earnings per diluted share was 1.57 dollars.

Other major companies scheduled to report quarterly results this week include Citigroup, Bank of America and Wells Fargo.

Third quarter earnings are expected to increase 4.9 percent on a year-over-year basis, according to data from Thomson Reuters. Third quarter revenues are expected to increase 4.3 percent from the third quarter last year.