Notable ETF Outflow Detected - BIB, ACAD, XLRN, ACRX
June 02, 2015 at 12:11 PM EDT
Symbols mentioned in this story: BIB, ACAD, XLRN, ACRX Exchange traded funds (ETFs) trade just like stocks, but instead of ''shares'' investors are actually buying and selling ''units''. These ''units'' can be traded back and forth just like stocks, but can also be created or destroyed to accommodate investor demand..