Question for the Excel savvy folks.  I would like

Question for the Excel savvy folks.  I would like to find and replace about 19,000 rows of stock tickers and to individually do it by each row would take forever.  Is there a way to find and replace a word in a row with a word found in the column A of that respective row throughout the entire spreadsheet.  Here is a screenshot of what I am working with to try and give you a better idea.

I want to replace "DHSM" with the stock symbol in column A for each row without doing find and replace manually on each row.  Can this be done?  If so, any suggestion?  Thanks in advance.