On Thursday, the rumor mill was swirling over possible merger talks between T-Mobile and Dish Network. As a result, both stocks shot through the roof, which left Jim Cramer thinking—how do you kill a rumor that makes so much sense?

In Cramer's perspective, the merged company would be very attractive. Dish has the spectrum that is desperately needed by a big phone company, along with a television feed. T-Mobile is the most aggressive carrier out there, with the fastest growth, but it needs the spectrum.