Valuation history

• on July 27, 2017
• $19.2B on February 1, 2017
• $19.2B on January 1, 2017
• $19.2B on December 1, 2016
• $19.2B on November 1, 2016
• $19.2B on October 1, 2016
• $19.2B on September 1, 2016
• $19.2B on August 1, 2016
• $19.2B on July 1, 2016
• $19.2B on June 1, 2016
• $19.2B on May 1, 2016
• $19.2B on April 1, 2016
• $19.2B on March 1, 2016
• $19.2B on February 1, 2016
• $19.2B on January 1, 2016
• $19.2B on December 1, 2015
• $19.2B on November 1, 2015
• $19.2B on October 1, 2015
• $20.6B on September 1, 2015
• $20.6B on August 1, 2015
• $17.9B on July 1, 2015
• $12B on January 20, 2015