Stocks in the U.S. communications services companies fell ahead of earnings reports while Treasury yields climbed.

SpaceX's stock snapped a bruising seven-session losing streak on Tuesday. The stock shed 21% during that period, creating a buying opportunity for investors, according to Macquarie analysts led by Paul Golding. They wrote in a Monday note to clients that SpaceX's SPCX "story" is virtually unchanged even as its stock has taken a beating.

The Trump administration sought phone records tied to relatives of New York Times reporters earlier this month in its effort to identify the journalists' sources, according to a letter the Times submitted to a federal judge that was unsealed Monday.

AT&T kicks off earnings reports for telecom stocks on Wednesday morning.

Write to Patrick Sullivan at patrick.sullivan@wsj.com