Lumen (LUMN) shares soared 9.1% in the last trading session to close at $6.14. The move was backed by solid volume with far more shares changing hands than in a normal session. This compares to the stock's 42.5% gain over the past four weeks.The increase in share price can be attributed to the launch of its cutting-edge Wavelength RapidRoutes, a faster way for enterprises to get high-capacity connections. Unlike traditional wavelength services that take months to set up, Lumen offers ready-to-deploy network ...