Knight Transportation Inc. and Swift Transportation Inc. are combining in a trucking industry merger, creating what will be one of the largest players in the industry.

The $6 billion all-stock deal will create a company with $5 billion in revenue. Both Swift (NYSE: SWFT) and Knight (NYSE: KNX) are based in Phoenix, and the new company will continue to call the city home.

The deal weights Knight’s stock higher than Swift’s, with each share of Swift converting into 0.72 shares of the new Knight-Swift…