RT Journal Article SR Electronic T1 Stress Testing ETFs JF ETFs and Indexing FD Institutional Investor Journals SP 76 OP 80 VO 2003 IS 1 A1 John Tucker A1 Patricia Sanchez-Marin YR 2003 UL http://guides.pm-research.com/content/2003/1/76.abstract AB ETFs have established themselves as global financial instruments with a myriad of practical and strategic applications. However, a key test of their long-term staying power will be their relative performance under fire. This article from State Street Global Advisors, the largest U.S. and global manager of ETFs, examines the trading behavior of several bellwether ETFs during some critical periods of market instability.