Meme-stocks make a comeback after Tupperware and bankrupt Yellow see shares jump more than 800%

• Meme-stocks are making a comeback as investors send shares of troubled companies higher.
• Tupperware and Yellow have both seen their share prices surge by more than 800% over the past week.
• The rallies suggest that investors are willing to take on more risk after the broader stock market moved higher.

A meme-stock rally has sent shares of Tupperware and Yellow Corporation soaring, suggesting that investors are growing more comfortable with taking on risk after the broader stock market moved higher.