Topic
Guides
4 articles
Guide
How Stock Indexes Are Calculated: Weighting and Divisors
How stock indexes are calculated: price weighting, market-cap weighting, float adjustment, divisors and rebalancing, with a worked example of the index math.
Guide
Market Breadth Indicators Explained: Advance-Decline and More
Market breadth indicators explained: how advance-decline lines, new highs and lows, and up-down volume show how many stocks drive a move, and their limits.
Guide
Pre-Market and After-Hours Trading Explained
Pre-market and after-hours trading explained: who can trade outside regular hours, how the pre-market movers appear, and the liquidity, spread and price risks.
Guide
How Stock Market Opening and Closing Auctions Work
How the stock market opening and closing auctions work: order types, imbalance data, price discovery and why the market close price matters for indexes.