In terms of diversification, the greatest amount of difficulty in doing this will come from investments in stocks. This was illustrated in the commissions section of the article, where we discussed how the costs of investing in a large number of stocks can be detrimental to the portfolio. With a $1,000 deposit, it is nearly impossible to have a well-diversified portfolio, so be aware that you may need to invest in one or two companies (at the most) to begin with. This will increase your risk.
New York Stock Exchange NASDAQ London Stock Exchange Japan Exchange Group – Tokyo Shanghai Hong Kong Euronext Shenzhen Toronto Stock Exchange Deutsche Börse Bombay Stock Exchange National Stock Exchange of India SIX Swiss Exchange Australian Securities Exchange Korea Exchange NASDAQ OMX Nordic Exchange JSE Limited BME Spanish Exchanges Taiwan Stock Exchange B3 Singapore Exchange Moscow Exchange Stock Exchange of Thailand Tadawul Indonesia Stock Exchange
According to one interpretation of the efficient-market hypothesis (EMH), only changes in fundamental factors, such as the outlook for margins, profits or dividends, ought to affect share prices beyond the short term, where random 'noise' in the system may prevail. The 'hard' efficient-market hypothesis does not explain the cause of events such as the crash in 1987, when the Dow Jones Industrial Average plummeted 22.6 percent—the largest-ever one-day fall in the United States.