All three major United States stock indexes closed at record highs Monday, the first time that has happened since the summer of 2015.

The Dow Jones industrial average rose 88 points (0.47 percent), the Nasdaq spiked 47 points (0.89 percent) and the Standard and Poor’s 500 shot up 16 points (0.75 percent).

Energy stocks helped drive Monday’s boom, rising 2.2 percent as oil prices rose in expectation of an OPEC deal to limit production. Crude oil rose 3.9 percent to $47.49 per barrel.

The Russell 2000 and S&P Mid Cap 400 indexes, which track the stocks of smaller companies, also closed with record highs.

The stock market tanked in the immediate aftermath of Donald Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE's election victory, but has been on a winning streak since then, led by financial and energy stocks. Traders are anticipating that Republican control of Washington will lead to a new era of deregulation.