Whenever short-sellers start piling onto a company, it's worth looking at why that is happening. So when offshore driller Transocean's (NYSE:RIG) short position increased to nearly 15% of its market cap, it is time that investors start asking questions. Could it be that short-sellers are just looking to make a quick buck on today's weak rig market? Are there some structural issues at Transocean that could lead to further problems? Or are main competitor Seadrill (NYSE:SDRL) and upstarts Ocean Rig UDW (NASDAQ:ORIG) and Vantage Drilling (NYSEMKT:VTG) taking market share from the formerly dominant player in the space?

Find out the answers to these questions, as well as whether you should follow Wall Street into the short position at Transocean, by tuning into the video below.

Tyler Crowe owns shares of Seadrill. You can follow Tyler at Fool.com under the handle TMFDirtyBird, on Google +, or on Twitter,@TylerCroweFool.

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