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Digital assets and currencies

Understand assets, networks and trading mechanics with sources you can check.

Securities & exchanges

Joseph Parnes

Joseph Parnes (born November 23, 1946) is an American businessperson and registered investment advisor notable for his involvement in short selling. He is president of Technomart Investment Advisors and editor of the market letter Shortex. His investment strategy is known to be contrarian in nature and is a regular contributor to Forbes and Futures Magazine. His short strategy was expr

Securities & exchanges

Roy Niederhoffer

Roy Gary Niederhoffer (born 1966) is an American hedge fund manager. He graduated from Harvard College magna cum laude in 1987, with a BA in computational neuroscience.