Google Inc. (NASDAQ: GOOG) shares on Wednesday edged down 0.63 percent to $1,192.38 in early trading. The Internet giant will have a double-entry in the S&P 500 following the upcoming creation of a second class of Google stock. Standard & Poor's announced changes to how it plans to handle Google Inc.'s pending stock split, reversing an earlier decision to drop one of the Google entries from the index. Although the S&P will still have 500 companies, it will actually contain 501 stocks.