Castlight Health (CSLT) Skyrockets on First Day of Trading

NEW YORK (TheStreet) -- Castlight Health (CSLT) skyrocketed 161.1% to $41.78 at 10:50 a.m. Friday, the healthcare information company's first day of trading.

The stock started the morning at its initial price of $16. Castlight raised $178 million from the offering by selling 11.1 million shares. The company intended to sell the 11.1 million shares at between $9 and $11 a share when it announced the IPO.

Castlight amassed a volume of more than 4.5 million shares by 10:50 a.m.

Must read: Warren Buffett's 10 Favorite Stocks

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.

CSLT ChartCSLT data by YCharts

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.

Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer or Stephanie Link.

More from Markets

Week Ahead: Trade Fears and Stress Tests Signal More Volatility To Come

Week Ahead: Trade Fears and Stress Tests Signal More Volatility To Come

Trump Takes Aim at Auto Imports; Markets End Mixed -- ICYMI

Trump Takes Aim at Auto Imports; Markets End Mixed -- ICYMI

Video: What Oprah's Content Partnership With Apple Means for the Rest of Tech

Video: What Oprah's Content Partnership With Apple Means for the Rest of Tech

REPLAY: Jim Cramer on the Markets, Oil, Starbucks, Tesla, Okta and Red Hat

REPLAY: Jim Cramer on the Markets, Oil, Starbucks, Tesla, Okta and Red Hat

Flashback Friday: The Market Movers

Flashback Friday: The Market Movers