Does this sound acquainted: Good man owns a stock in March at $200, sells it in June at round $600, however then buys it again in July and August for between $900 and $1,000. By September it’s again at $200. Ouch. Tesla this yr? Yahoo in 2000? Nope. That was Sir Isaac Newton getting pulled into the nice momentum commerce of the South Sea Co., which cratered 300 years in the past this month. He misplaced the equal of greater than $three million at present. Newton, whose second regulation of movement is in regards to the momentum of a physique equaling the power performing on it, didn’t know that works for stocks too. When…