USA market indices (most popular) and what they mean
• measures the stock performance of 500 large companies publicly listed on stock exchanges in the United States • considered one of the best representations of the U.S. stock market • though all companies in it are listed in the USA, it includes many multi-national companies • companies in the index derive on average only about 70% of their revenue in the USA • capitalization-weighted: the 10 largest companies in the index account for 1/5 of its performance • not necessarily the 500 biggest companies listed in the USA; there are many rules governing how the components are selected, including that they cannot be ADRs and ETFs • associated with many ticker symbols, including: ^GSPC, INX, and $SPX, depending on the source • popular...
unconfuse yourself
Basic things such as bid/ask spread, market orders & closing prices are frequently misunderstood. I myself went through phases where I thought I understood these things, until further misunderstandings arose. I will break them down here.