Leveraged ETFs Explained: Daily Reset and Volatility Drag
How TQQQ, SQQQ, and other daily-reset ETFs really work — the compounding math, when they overshoot, and when volatility eats them alive.
investing basics
Bond Duration and Convexity Explained: How Prices Move
Duration tells you how much a bond’s price will move for a 1% change in yields. Convexity refines the estimate for big moves. Here’s how both actually work.
Repo and Reverse Repo Explained: The Plumbing of Rates
How the US repo market really works: repo vs reverse repo, SOFR, the Fed’s RRP floor and SRF ceiling, and what broke in September 2019.
Fed Funds Futures Explained: How Markets Price Rate Cuts
Fed funds futures let traders bet on the path of the overnight rate. Here is how the contract works, and how CME FedWatch turns prices into cut probabilities.
How ETFs Actually Work: Creation, Redemption, and APs
ETFs trade like stocks but avoid mutual-fund cash drag by swapping baskets in-kind with authorized participants. Here’s the mechanism in plain English.
Modern Portfolio Theory and the Efficient Frontier
How Harry Markowitz’s 1952 paper reshaped investing: expected return, variance, correlation, the efficient frontier, and where MPT breaks in real markets.
Volatility Skew and Smile Explained: Why OTM Puts Cost More
Why S&P 500 puts trade richer than calls, where the smile lives, and how the CBOE SKEW Index quantifies tail risk.
Yield Curve Inversion Explained: The Recession Signal
Why an inverted yield curve preceded every US recession since 1969, what the 10Y-2Y and 10Y-3M spreads measure, and the 2022 inversion that broke the pattern.
What Is Jackson Hole? The Fed Retreat That Moves Markets
Every August, top central bankers gather in Wyoming. Here is why one Fed Chair speech from Jackson Hole can reset bond yields, stocks, and the dollar.
Dollar-Cost Averaging vs Lump Sum: What the Data Shows
Vanguard tested five decades of global market data on DCA vs lump sum. Lump sum won 68% of the time — here’s why, and when DCA is still the right call.