Teach Me Like I'm Five: Investing Concepts Made Simple

Excess Returns

We’re on a mission to make investing concepts simple. In each episode, we bring in an expert to help us break down a key financial idea—whether it’s a rule of thumb, a market principle, or a tool investors use every day. We ask the questions you might be afraid to and focus on clear, accessible explanations that anyone can understand. If you’ve ever felt confused by financial jargon or just want a better grasp on how things really work, you’re in the right place. We’re learning right alongside you—one concept at a time.

Episod

  1. 9 SEP

    The Greek That Breaks Traders | What Every Investor Needs to Know About Gamma

    In this episode of Excess Returns, Matt Zeigler sits down with Kris Abdelmessih and Matt Cashman to break down one of the most important — and often misunderstood — concepts in options: gamma. They explore what gamma really is, how it interacts with delta and theta, why gamma scalping (a.k.a. delta hedging) matters, and what both individual traders and professionals need to know about it. If you’ve ever wondered how options traders actually make money from volatility, this is your guide. Topics Covered Why understanding gamma is critical to options trading The relationship between gamma, delta, and theta Using physics and middle school math to explain gamma’s role How gamma P&L works and why it creates curvature in returns Where gamma “lives” (at-the-money vs. in/out of the money, short vs. long dated) The mechanics of gamma scalping and delta hedging Why option trading is really volatility trading The practical applications for retail traders and professionals Common misconceptions about “income from options” Timestamps 00:00 – Why gamma matters in options trading 02:22 – Defining gamma and its sensitivity to price moves 05:04 – Practical explanation: delta vs. gamma 09:00 – Physics/acceleration analogy for gamma P&L 18:00 – Mapping acceleration math to options gamma 23:30 – Where gamma lives: at-the-money and near-expiry options 29:00 – Introduction to gamma scalping (delta hedging) 36:00 – When gamma trading works best (volatility path dependence) 41:00 – Real-world applications for individuals and professionals 47:14 – Why selling options isn’t “guaranteed income”

    49 min
  2. 21 JUL

    The Lie Your Stock's Price is Telling You | Kris Abdelmessih on Why Options Hold the Truth

    What can bar bets, coin flips, and the length of your subway commute teach us about options pricing? In this episode of Excess Returns, Matt Ziegler is joined once again by Kris Abdelmessih to break down complex options theory into intuitive, real-world analogies. From prediction markets to probability distributions, Kris helps us understand how the options market reveals what the stock market often hides—how investors are pricing not just if something happens, but how much it matters when it does. This is options math with a twist, taught like you’re five, but ready for Wall Street. 📈 Whether you're an investor trying to size a high-risk, high-reward position, or simply curious about how the market “thinks” about uncertainty, this episode is full of mental models you’ll want to revisit. 📌 Topics Covered: Coin flips vs. futures: the two dominant styles of betting Over/under bets and what they teach us about prediction markets Why odds ≠ probabilities—and how to convert between them The difference between probability and magnitude in financial outcomes Bar bets and beer-drinking contests on Wall Street (!?) Using call spreads to isolate probabilities, not potential profits A visual breakdown of skewed vs. symmetric return distributions Why two stocks can have the same price but completely different implications How the options market understood the dot-com bust better than most investors Why thinking in bets makes you a better investor and allocator ⏱️ Timestamps: 00:00 – The stock market vs. the options market 01:42 – Over/under bets and their connection to options 05:59 – Understanding prediction markets and odds 10:00 – Future-style bets: Magnitude vs. probability 14:35 – The subway commute example and tail risk 19:00 – Why volatility and skew matter in pricing 20:38 – Stock A vs. Stock B: Same price, different outcomes 24:00 – Visualizing probability distributions 28:00 – How call values reflect both vol and probability 32:00 – Truncating the tail: turning options into “bar bets” 35:00 – Using call spreads to extract implied probabilities 37:00 – What investors can learn from this framework 39:00 – Options markets during the dot-com bubble 40:45 – Where to follow Kris online 🎙️ Guest: Kris Abdelmessih 🧠 Follow Kris’s work: https://moontower.substack.com

    41 min

Perihal

We’re on a mission to make investing concepts simple. In each episode, we bring in an expert to help us break down a key financial idea—whether it’s a rule of thumb, a market principle, or a tool investors use every day. We ask the questions you might be afraid to and focus on clear, accessible explanations that anyone can understand. If you’ve ever felt confused by financial jargon or just want a better grasp on how things really work, you’re in the right place. We’re learning right alongside you—one concept at a time.

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