If your OneDrive for Business library has more than 20,000 items, you canât use the sync app as described in this article to move your files to Office 365. The item count in OneDrive for Business is comprised of files and folders in the library, plus any files in your SharePoint recycle bin.
Stock market index. A stock index or stock market index is a measurement of the value of a section of the stock market. It is computed from the prices of selected stocks (typically a weighted average). It is a tool used by investors and financial managers to describe the market, and to compare the return on specific investments.
Major Stock Indices. The Major Stock Indices page summarizes the performance of major groupings of stocks, classified by the exchange on which they trade, by region, or any number of classifications that allow investors to benchmark the overall performance of major groupings of stocks. For specific sector groupings, see Market Sector Indices.