Someone who engages in arbitrage (who purchases securities in one market for immediate resale in another in the hope of profiting from the price differential)

Usage examples of arbitrageur.

Owner Ramsey Osborn yesterday hedged his Arc bets by selling a half-share in his four-year-old colt to arbitrageur Malcolm Pembroke, who launched into bloodstock only this week with a two million guineas yearling at the Premium Sales.

The Port Dutch was a midtown hotel for millionaires of all kindsoil sheiks, arbitrageurs, rock legends, British royalsand its suites, two per floor facing Central Park across Fifth Avenue, almost always repaid a drop-in visit during the dinner hour.

This one-quarter percentage point difference may seem minuscule, but in the hands of securities traders and arbitrageurs, advance word could be parlayed into quite a windfall.

The Port Dutch was a midtown hotel for millionaires of all kindsoil sheiks, arbitrageurs, rock legends, British royalsand its suites, two per floor facing Central Park across Fifth Avenue, almost always repaid a drop-in visit during the dinner hour.

As a commodities trader, and as a currency arbitrageur, he'd been ahead of the curve almost from the beginning, sensing the momentary valuation differences—.

Arbitrageurs like Ivan Boesky acted on takeover bids and impending mergers, buying blocks of the target company's stock at a low price, with the hope of selling them at a much higher price when the merger occurred.