Answer:
Dow Jones Industrial Average on May 30, 2017:
According to valueline.com, the Dow Jones Industrial Average on May 30, 2917 closed at 21029.47 Down 50.81.
Closing index = 21029.47
plus down movement =50.81
Opening index = 21080.28
This implies that the opening price was 21080.28.
Explanation:
The Dow Jones Industrial Average measures the stock performance of 30 large companies listed on stock exchanges in the United States. It is a stock price index. Others are the S&P 500 Index and the NASDAQ.
The opening index represents the day's beginning average price before trading started. During trading, the price must have seen variations, up and down movements. But, at the end of the day's trading, the closing price was reported to be 21029.47 Down 50.81.
From this closing index report, one can infer by adding back, that the opening price was above the closing price by 50.81 or about 51 basis point.
