The Relative Strength Index is a calculation that measures oscillations in the value of a stock over a period of time. Published in 1978, the RSI was developed by technical analyst J. Welles Wilder Jr ...

For many, the INDEX-XMATCH combination in Excel is the go-to method for retrieving a value from a dataset. However, you can also use this dynamic duo to perform two-way lookups, returning a value at ...