Discover how ProShares UltraPro QQQ ETF (TQQQ) leverages Nasdaq-100 returns. Learn risks, volatility, and smart investing ...

Barbara Friedberg is a veteran investment portfolio manager, fintech consultant, and expert investor. She is a published author of several books. Suzanne is a content marketer, writer, and ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...

The Chicago Manual of Style is an American English style guide published by the University of Chicago Press. The Manual’s guidelines for publishing, style and usage, and citations and indexes—known as ...

Diltiazem hydrochloride (DLH) is a calcium channel blocker useful for the treatment of angina pectoris, arrhythmia, and hypertension. DLH having a short half-life needs frequent administration for ...