"Market Breadth Primer" Posts

I mentioned that the most reliable source for tracking index component changes is the public record of press releases. Here is an example how to search for these records online. Find The Press Release Agency From the index owner website, you can always find their press release section. By checking out those press releases you […]

S&P 100 (OEX) is a subset of the S&P 500 Index containing the top 100 most valuable companies within the S&P 500. This index has long been used for the construction of financial derivatives like index options for decades. The most well known symbol for S&P 100, OEX, is in fact the ticker symbol for […]

Nasdaq-100 (NDX) is one of the most followed index worldwide. Many derivative products are created around the index itself to allow participations in its rise and fall all around the world. Unlike S&P 500, Nasdaq-100 does not require a company to be listed within United States only. This makes Nasdaq-100 a truly international index. Due […]

Stock market indices are calculated from a basket of components. These components, however, are not always the same. Components are changed for many reasons. Contrary to what many conspiracy theorists say, majority of these reasons are legit. I am going to discuss the effects of component changes and how that affects our choice in picking […]

In order to construct and maintain custom market breadth data, you need access to the latest list of components for the target baskets in order to collect the statistics properly. Following are resources you may find useful if you maintain your own custom market breadth data like I do. It is also useful for anyone […]