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.
Definition: A stock market crash is when stock indexes lose more than 10% in a day or two. The broad indexes are the Dow Jones Industrial Average, the S&P 500, and the NASDAQ. The rapidity of the decline differentiates it from a stock market correction. That's a 10% loss over days, weeks or even months.