EskiSignal
Educational explainers for market terms, stock moves, crypto signals, macro indicators, calendar events, and common market mechanics.
Market Basics
What Is the PPI? Producer Price Index Explained
A plain-English guide to the Producer Price Index — what it measures, how it's built, and why markets treat it as an inflation early-warning sign.
Learn & ReliabilityMarket Basics
What Is an IPO and How Do IPOs Work? A Plain-English Guide
An IPO is how a private company first sells shares to the public. Here is how IPOs work step by step, the key terms, and why first-day pops can mislead.
Learn & ReliabilityMarket Basics
What Is an ETF and How Do ETFs Work? A Plain-English Guide
An ETF is a basket of investments that trades like a stock. Here is how ETFs work, how they differ from mutual funds, the main types, and what to check.
Learn & ReliabilityMarket Basics
What Is an Ex-Dividend Date? The Four Dividend Dates Explained
The ex-dividend date decides who gets a dividend. Here are the four key dividend dates, why timing matters, and why the price drops on the ex-date.
Learn & ReliabilityMarket Basics
What Is Quadruple Witching? Triple vs Quadruple, Explained
Quadruple witching is the quarterly expiration of four derivative types. Here is how it differs from triple witching, when it happens, and why volume rises.
Learn & ReliabilityMarket BasicsStocksUnusual Volume
What Is Unusual Volume in Stocks? How Traders Read Abnormal Trading Activity
A plain-English explainer on unusual stock volume: what it means, what typically causes it, how to find unusual volume data, and what it does and does not tell you.
