KEY POINTS
  • It's a penny stock, so it doesn't take much to send shares on wild swings.
  • Still, the plunge stands as Helios and Matheson's worst week on record since going public in 1997.
  • By Friday's close, Helios and Matheson had fallen to an implied market value of roughly $400,000.

MoviePass' parent Helios and Matheson Analytics lost 97 percent of its market value this week, falling as low as 5 cents per share Friday. The stock closed at 7 cents.

It's a penny stock, so it doesn't take much to send shares on wild swings. Still, the plunge stands as Helios and Matheson's worst week on record since going public in 1997, even worse than last week's 92 percent punishment for the top spot.