Stock Market Fluctuations

The economic health of a country will strongly influence its stock market. When the economy is doing well the market is bullish. Bull markets occur during times of high economic production, low unemployment and low inflation. Bear markets, on the other hand, follow downturns in the economy. When inflation and unemployment are rising, stock prices are usually falling.
Stock price fluctuations are also driven by supply and demand, which in turn are dependent to a great degree on investor psychology. Seeing a stock price rise rapidly can cause investors to jump on the bandwagon, and this rush to buy drives the price up even faster. A falling price can have a similar effect in the other direction. These are short-term fluctuations. Stock prices tend to normalize after such runs.
The stock exchange is only 1 of many opportunities for people to invest. Other popular markets include the Foreign Exchange Market (FOREX), the Futures Market, and the Options Market.

FOREX: World's Largest Market

The FOREX is the biggest (in terms of value) investment market in the world. FOREX traders buy 1 currency against another and can profit from small changes in currency value. Most FOREX trades are entered and exited in 1 24-hour span, and traders have to keep a close watch on the market in order to make profitable trades.

The Futures Market

The Futures Market is a market of contracts to buy and sell certain goods at specified prices and times. It exists because buyers and sellers of goods wish to lock in prices for future delivery, but market conditions can make the actual futures contract fluctuate considerably in value.
Most investors in the futures market are not interested in the actual goods -- only in the profit that can be realized from trading the contracts.

The Options Market

The Options Market is similar to the Futures Market in that an option is a contract that gives you the right (but not the obligation) to trade a stock at a certain price before a specified date. These options can be traded on their own or purchased as a form of insurance against price fluctuations within a certain time frame.

Stocks: Low Risk, Long-Term

All 3 of these markets are considered quite risky without considerable knowledge and experience. They also require close monitoring of market movements. Stocks, on the other hand, are less risky because movements of the market are usually more gradual. Although short-term investment strategies are possible, most people view stocks as long-term investments.