Yo-Yo Love Machine 16 years ago Yo-Yo A colloquial term for a stock market that is very volatile. Random Finance Terms for the Letter Y Y-Share Yellow Knight Yellow Sheets Yield Basis Yield Elbow Yield Spread Premium Yield to Call Yield to Maturity Yield to Worst Yo-Yo Recommended for you: Y-Share Yield Basis Yellow Sheets Yield Elbow