Shares of Lumen Technologies (LUMN -4.07%) are down Wednesday. The firm's stock lost 3.4% as of 1 p.m. ET, but was down as much as 5.8% earlier in the day. The loss comes as the S&P 500 (^GSPC 0.15%) gained 0.1% and the Nasdaq Composite (^IXIC -0.09%) lost 0.1%.Lumen, a telecom company that provides data center networking technology, reported earnings on Tuesday. While it was a mostly positive quarter, too many unknowns remain, and investors remain cautious.The numbersLumen reported a Q4 net income of $85 m ...