Behaviorists argue that investors often behave irrationally when making investment decisions thereby incorrectly pricing securities, which causes market inefficiencies, which, in turn, are opportunities to make money. However, the whole notion of EMH is that these non-rational reactions to information cancel out, leaving the prices of stocks rationally determined.
Algorithmic trading Buy and hold Contrarian investing Day trading Dollar cost averaging Efficient-market hypothesis Fundamental analysis Growth stock Market timing Modern portfolio theory Momentum investing Mosaic theory Pairs trade Post-modern portfolio theory Random walk hypothesis Sector rotation Style investing Swing trading Technical analysis Trend following Value averaging Value investing
CAUTION – One of the most common mistakes new investors make is to buy too many shares for their first stock trade; this is a mistake. Taking on too much risk as a beginner who is just getting started will very likely result in experiencing unnecessary losses. Instead, begin with trading small position sizes, then slowly work your way up to buying more shares, on average, each trade.
Jesse Livermore, respected as one of the greatest investors of all time, has been featured in many investment books. The most iconic was Reminiscences of a Stock Operator by Edwin Lefevre in 1923. During the course of his life he made and lost millions, going broke several times before committing suicide in 1940. These are his seven greatest trading lessons:
Financial innovation has brought many new financial instruments whose pay-offs or values depend on the prices of stocks. Some examples are exchange-traded funds (ETFs), stock index and stock options, equity swaps, single-stock futures, and stock index futures. These last two may be traded on futures exchanges (which are distinct from stock exchanges—their history traces back to commodity futures exchanges), or traded over-the-counter. As all of these products are only derived from stocks, they are sometimes considered to be traded in a (hypothetical) derivatives market, rather than the (hypothetical) stock market.