What in the world? Hal1 wasn't asking about the mechanism for exercising a warrant or whether or not there is a derivatives market in warrants. He was simply trying to understand what a warrant is and whether or not it is the same thing as an option. You have suggested one way to exercise a warrant and to sell the purchased stock, all in one transaction. However, there are many other ways (just as "asute"). Further, many investors do not sell the stock purchased via a warrant. Instead they choose to hold onto it if they anticipate some upside appreciation. Slow down and take a deep breath, Nick. You're so anxious to prove how smart you are that you can't see the forrest for the trees.