Arbitrage: Riskless Profit?

It's basically buying a security in one market and simultaneously selling it in another market, profiting from a temporary difference in prices. Today's Stocks & Topics: Long Term Investing, ROIC - Retail Opportunity Investment Corp., ALB - Albemarle Corp., The Fed's Balance Sheet, Puerto Rico, STX - Seagate Technology PLC, MRVL - Marvell Technology Group Ltd., CY - Cypress Semiconductor Corp., Diversification, M - Macy's Inc., NVDA - NVIDIA Corp., CMG - Chipotle Mexican Grill Inc., International Mutual Funds.