U.S. stocks closed higher for the second straight session Tuesday, with the S&P 500 index posting its biggest single-session gain in two years.

US job vacancies fell by the most in about 2 1/2 years in August, while the Reserve Bank of Australia announced a less-than-expected 25 basis point rate hike.

shares of Twitter Inc TWTR up around 22% on Tuesday after Tesla Inc TSLA CEO Elon Musk resumed his planned buyout of the social media platform.

shares of apple inc AAPL, Amazon.com, Inc. AMZN and Meta Platforms, Inc. METAall traded higher on Tuesday.

That Nasdaq100 up 3.14% to close at 11,582.54 on Tuesday during the S&P500 increased by 3.06%. That Dow Jones rose around 825 points and settled at 30,316.32 in the previous session.

All major sectors of the S&P 500 ended positively, with energy and consumer discretionary stocks posting the biggest gains on Tuesday.

The Chicago Board Options Exchange’s CBOE Volatility Index (VIX) fell 1.7% to 29.58 points.

What is the CBOE Volatility Index?

The CBOE Volatility Index, popularly known as the VIX, is a measure of stock market volatility expectations based on call and put options of the S&P 500 index options.