LONDON — Hugh Hendry has a big mouth, as Hugh Hendry will tell you.

Hugh Hendry of Eclectica Asset Management, in his office in London, is a departure from the normally hush-hush world of hedge funds.

With a sharp wit and a sharper tongue, Mr. Hendry, a plain-spoken Scot, has positioned himself as the public contrarian thinker of this city’s very private hedge fund community.

The euro? It’s finished, Mr. Hendry proclaims.

China? Headed for a fall.

President Obama? “If there was a way to short Obama, I would,” Mr. Hendry says.

Mr. Hendry runs the successful hedge fund firm Eclectica Asset Management. It is an old-school macroeconomic fund company with a big-think,...