How Much Could You Lose In T-Mobile Stock?

T-Mobile US (TMUS) stock fell 16.7% over the past month, diverging from a 2.0% gain for the S&P 500. News reports tied a sharp drop on October 9 to a SpaceX spectrum deal, and AT&T, Verizon and Comcast each lost more than 12% over the same month. You may still think of a wireless carrier as a stock that holds up in a selloff. So how far has T-Mobile stock fallen in past market selloffs.