10-K Diver
I help people understand the fundamentals of finance and investing.
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1/ Ed Thorp (@EdwardOThorp) is a pioneer in the field of "how to recognize and take advantage of mis-priced bets". This question has led Thorp to discover all kinds of fascinatin...
1/ Get a cup of coffee. In this thread, I'll walk you through one of Warren Buffett's earliest business ventures -- his Pinball Machine Empire. This "case study" can teach us a...
Today (Sep 29) is National Coffee Day in the US. So here's a tidbit from Starbucks's history. Howard Schultz and a few investors bought Starbucks during the early days -- when it...
1/ Get a cup of coffee. This is a thread that @ruima and I wrote jointly. In this thread, we'll help you estimate how much "margin of safety" a company has when it's loaded with...
It was an absolute pleasure to chat with Rajeev. We discussed how to select companies to invest in, how to value them, mental models that investors need, and more. 1 hr, 20 min Y...
1/ Get a cup of coffee. In this thread, I'll show you how to *correctly* calculate inflation-adjusted investment returns. Here's the punch line: the *naive* procedure that many...
31/ The math is clear on this one. The *more* expensive the shares, the *less* benefit long term shareholders will get from buybacks.
1/ Get a cup of coffee. In this thread, I'll walk you through the basics of Capital Allocation. The better we understand how capital moves in and out of a business, the better w...
1/ Get a cup of coffee. In this thread, I'll share with you some lessons I learned from playing the claw machine. Claw machines tend to bring out many of our psychological biase...
1/ Get a cup of coffee. In this thread, I'll walk you through the various connections between asset prices, interest rates, and inflation. As an investor, it's useful to have a...
1/ Get a cup of coffee. In this thread, I'll help you understand Generating Functions. They're a super cool math technique you can use to predict the behavior of various financi...
1/ Get a cup of coffee. In this thread, I'll show you how the P/E ratio of a portfolio is related to the P/E ratios of its individual stocks. The math here is beautiful. It invo...