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IDEA GENERATION (8/N): INVESTOR LETTERS In addition to regulatory filings like 13Fs, some money managers opt to share their investor letters—also known by a whole lot of different names: shareholder letters, hedge fund letters, letters to investors, letters to shareholders, letters to (limited) partners, or letters to... See more

Gamma exposure (GEX): 简单讲讲Gamma exposure! 1. 先从delta开始讲起吧。Delta是期权的一个参数，是期权价格对股价的一阶导数，简单理解就是正股涨一块钱，期权价格变化多少。比如某一个SPY的call的delta是0.7，就意味着SPY涨一块钱的话，这个call会涨7毛钱。 2.

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HOW TO MAKE MONEY SHORT SELLING! One of the greatest investors of all time, Peter Lynch, sums it up perfectly: - "Just the fact is 3 dollars down from $100, doesnt mean you buy it" - "Short sellers who really make money, they are not short Walmart or Home Depot,... See more