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.
Market Education
Learn how stocks, bonds and capital markets work. Explore plain-English explanations, worked examples and charts, then follow related coverage to connect market concepts with current events. Find your way around ECMSource.
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.
How Treasury Auctions Work: Bid-to-Cover, Direct, Indirect
US Treasury auctions explained: single-price format, primary dealers, direct and indirect bidders, when-issued trading, bid-to-cover, and the tail.
PCE vs CPI: Which Inflation Number the Fed Actually Watches
The Fed targets PCE, not CPI. Here is what each measures, why they diverge, and what the July 2026 readings tell you before Jackson Hole.