The 21 Best ETFs to Buy for a Prosperous 2021 An ETF is a collection of usually hundreds, or sometimes thousands, of stocks or bonds held in a single fund similar to a mutual fund. But there are ...

Fidelity is based in Boston, MA, and is the manager of FSDAX. Fidelity Select Defense & Aerospace made its debut in May of 1984, and since then, FSDAX has accumulated about $1.82 billion in assets, ...