Sheet1 is Summary tab and will remain consistent (column A will not re-order, CUSIP will stay in exact positioning month over month).
Sheet2 is pulled from 3rd party. CUSIP order is subject to change, starting list in column A is subject to change (Column A list starts in row 2 one month, then starting in row 20 the next month etc.).
On Sheet1/Summary, I'm looking for a formula that can (1) Identify the row number on Sheet2 the same CUSIP is in, and then (2) COUNTIF the number of cells above zero.
Obviously the COUNTIF above zero part is easy, but I cannot figure out how to identify the corresponding row number on Sheet2 that belongs to the same CUSIP. Any thoughts?
To summarize: Sheet2 will be re-ordered every month, so I cannot hard link specific row numbers, and need to identify which row number the CUSIP on Sheet1 is on Sheet2 each month. Then do a COUNTIF above zero etc.