Enhanced by about 100 million shares traded in the New York Stock Exchange’s closing auction, Berkshire Hathaway Inc. Class B stock dimensions reached a record today following the fund managers buying the shares prior to the company joining the Standard & Poor’s 500 Index.

Nebraska-based company Omaha held by billionaire Warren Buffett increased 0.3% to $76.90 on 316 million shares traded by 6:16 p. m. in New York. According to the data collected by Bloomberg, average daily volume in the B stock, Texas-based Burlington Northern Santa Fe Corp. has 28.6 million shares.

Determined by Money Managers who track the S&P 500, the trading rose as with the approaching end of the day. Almost 35 million shares changed in the last hour. This happened as investors imitated the benchmark gauge for U. S. equities trying to buy them at the final price to keep their funds allied with the index.

James Dunigan, Chief Investment officer at PNC Wealth Management in Philadelphia said, “The effect on volume is obviously significant. Now that they will be added to the S&P 500, all the index funds will have to take a position. Some have to buy it and some will decide to buy. If you are a Buffett fan, you’d already be buying those shares”.

Berkshire stated, “Shareholders approved the split on Jan. 20, about two months after its board cleared it. Since shareholder approval of the action, the stock has risen 15 percent”.