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Robert Shiller called the dot-com bubble in 2000 - the market collapsed months later then he called the housing bubble years before 2008, while everyone laughed he won the Nobel Prize for explaining why markets aren't rational and he put his entire Yale course on financial markets online, for...

46,017 Aufrufe • vor 2 Monaten •via X (Twitter)

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On February 5, 2018, a fund called XIV lost $2 billion in fifteen minutes. Retail owned it. A Yale Nobel laureate had explained the exact trade that killed it on YouTube seven years earlier. Nobody watched. Nobody warned them. Every option seller alive is still running a version of the same trade. The Nobel laureate is Robert Shiller. He won in 2013. His Yale course is ECON 252, Financial Markets. Lecture 17 is on options and runs 71 minutes. Shiller walks through the Black-Scholes derivation, then does something no other professor does. He puts implied volatility next to realized volatility on the same chart. The gap is obvious. The gap is the trade. Implied vol is what people pay for options. Realized vol is what actually happens. For 30 years the VIX has averaged 4 points higher than realized S&P vol. That gap is called the variance risk premium. It means the average put buyer pays a 4 vol overcharge above what the market actually does. Selling that overcharge is one of the most persistent edges in finance. It works for years. Until it does not. XIV was that trade in a ticker. It compounded 40 percent a year from 2011 to early 2018. Retail piled in. Assets crossed $2 billion. On February 5, 2018, spot VIX doubled in a single session. XIV lost 96 percent between 4pm and after-hours. Credit Suisse pulled the plug two weeks later. Holders got pennies. Shiller had drawn the tail seven years earlier. He named it. He told a room of Yale undergrads that anyone selling this without a hedge would eventually give it all back. The section is six minutes long. It is on YouTube. Shiller is 80. He still teaches at Yale. ECON 252 has been free since 2008. The lecture is free. The trade is real. The tail is what killed them.

Veles

80,338 Aufrufe • vor 1 Monat

A Yale professor recorded 26 hours of undergraduate financial theory in 2009 that quietly runs every mortgage desk, credit hedge fund, bank stress test, and repo market on earth. Yale charges $86,000 a year to sit in that classroom. He posted the entire course to YouTube for nothing. Millions have opened lecture one. Almost no retail trader has finished all twenty-six. His name is John Geanakoplos. He is the James Tobin Professor of Economics at Yale and co-founder of Ellington Capital Management, one of the largest mortgage hedge funds on Wall Street. He called the 2008 crash in a public lecture eight years early. The 75-minute clip in this video is one lecture from ECON 251 Financial Theory, filmed in the fall of 2009 at the MacMillan Center at Yale. The diagram on the board behind him looks trivial. It is the exact math that decides whether a bank stays solvent, whether a housing market corrects gently, and whether a mortgage fund survives a bad quarter. Geanakoplos covers the entire mathematical foundation of collateral, leverage, and financial crises in one semester. The Leverage Cycle. His original equation. Asset prices rise faster than fundamentals in booms and collapse harder in busts. Ellington priced every mortgage bond through 2008 with it. Collateral equilibrium. The price of an asset depends on who is allowed to borrow against it and how much. Not on discounted cash flow. Every housing bubble in history is a story about collateral. CDS and tranching. The math that turned $200 billion of subprime mortgages into $1.2 trillion of AAA bonds. Geanakoplos drew the diagram at Yale in 2005 and told his students the pool would default. Merrill, Citi, UBS, and Bear Stearns held it until it did. The natural buyers theory of price. A small number of optimists sets the price of every risky asset on earth. Remove their leverage and the market crashes faster than any change in fundamentals. By December 2007 Merrill had written down $9 billion, Citi $10 billion, UBS $13.7 billion. Total announced bank losses hit $52 billion. Geanakoplos had drawn the exact math for that outcome on the board two years earlier. Every mortgage desk on Wall Street pays entry-level analysts $250,000 to know this material before they walk in. Every senior MBS trader is paid $500,000 to remember it under pressure. Every central banker learns half of it and pretends the other half does not exist. "The most important variable in any market is not the interest rate. It is the collateral rate." That is a sentence Geanakoplos has repeated in every public lecture for twenty-five years. Bernanke ignored it in 2007. Every retail trader ignores it today. The lectures are free on Yale Open Courses. The Leverage Cycle paper is under thirty pages. The textbook chapters are free. The math is free. The willingness to sit through 26 hours of financial theory before opening a leveraged position, buying a mortgage ETF, or holding a bank stock through the next credit tightening is a much rarer commodity than the confidence to walk in without it.

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16,139 Aufrufe • vor 15 Tagen

A dead MIT professor accidentally destroyed the $20 billion executive coaching industry with one hour of lecture, and ten million people have already watched him do it. He filmed it once in January 2018 and died eighteen months later. Executive coaches charge fifteen thousand dollars a session to teach a third of what he covered in that one hour for free. His name was Patrick Winston. He ran the MIT Artificial Intelligence Laboratory from 1972 to 1997 and wrote the AI textbook every computer science major in the world read for thirty years. Every January for four decades, he gave a lecture called "How to Speak." His entire framework fits on a napkin. Do not read. Be in the image. Keep images simple. Eliminate clutter. Start with an empathetic connection. End with a punch line the audience can repeat over dinner. Never open with a joke. Never end with "thank you." That last rule alone has probably cost the executive coaching industry a hundred million dollars. "Your success in life will be determined largely by your ability to speak, your ability to write, and the quality of your ideas. In that order." That is the actual opening line of the lecture. Winston believed it strongly enough to spend fifty years teaching computer scientists how to talk. Founders spend $80,000 on an MBA and then hire a communications coach to teach them the same material Winston filmed once for free. Engineers write brilliant code and lose promotions to teammates who watched this lecture on the train. The lecture is free on MIT OpenCourseWare. The textbook is free on his page. Winston died in 2019. Almost none of the ten million viewers have actually implemented the four rules on the napkin. The napkin is free. The willingness to actually use it in your next meeting is the entire edge.

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537,402 Aufrufe • vor 20 Tagen