Investment

Investment is the commitment of resources to gain value over time. In finance, this often means committing money to receive more money later. This process involves tailoring how resources are spent and received. This is done to optimize the flow of these resources. When we talk about money moving in and out, we use specific terms. Net money received in a time period is called cash flow. Money received over many periods is called a cash flow stream. The main goal of investing is to generate a return. A return can be a capital gain, which is a profit. It can also be a capital loss if the value drops. Returns can be realized when an asset is sold. They can also be unrealized if the asset is still held. Some returns come as periodic income like dividends or interest. Rental income is another common form of periodic return. Returns can also change due to foreign currency exchange rates.

Investors must navigate a relationship between risk and return. Generally, investors expect higher returns from riskier investments. A low-risk investment usually offers a low return. High risk brings the chance of high losses. To manage this, investors use diversification. This means spreading money across many different assets. Diversification has a statistical effect of reducing overall risk. This is especially important for novice investors. Some activities, like arbitrage, do not involve this risk. Arbitrage generates profit without investing capital or bearing risk. Savings are different from investments. Savings carry a remote risk that a provider might default. They also face foreign exchange risk if the currency differs. Even tangible assets like property carry risks. Property buyers might use a mortgage to mitigate risk. They can borrow at a lower loan-to-security ratio.

There are many types of financial investments in modern economies. Traditional investments include stocks, which represent equity in companies. Bonds are loans to governments or businesses. Cash involves holding a currency to spend or hedge against exchange changes. Real estate can provide rental income or be resold for profit. Alternative investments offer different paths. Private equity involves businesses not on a public exchange. This includes venture capital or angel investors. Other alternatives include commodities like gold or natural gas. Collectables like art, coins, or vintage cars are also used. Digital entities like cryptocurrency and non-fungible tokens are newer options. Some use hedge funds that employ sophisticated techniques. These include derivatives, which are contracts valued by calculation. Examples include forwards, futures, options, and swaps. Some investors use leveraged investing, which involves borrowed money. Others use short selling to bet that a stock value will decline.

History shows that investment practices have evolved for millennia. Early credit and trade-based lending appeared in ancient Mesopotamia. The Code of Hammurabi, from around 1754 BCE, regulated loans. This code included rules for collateral and interest rates. In ancient Rome, intermediaries called argentarii provided credit. They also accepted deposits and facilitated currency exchange. During the medieval period, Italian merchant banking families grew. Cities like Florence, Genoa, and Venice led this growth. They developed practices like bills of exchange. These institutions supported expanding European trade networks. By the 17th century, global trade grew significantly. Shipping ventures to Asia required large pools of capital. Shipowners sought outside investors to finance these long voyages. These investors received a share of the profits later.

Major milestones helped create modern financial markets. The Amsterdam Stock Exchange was founded in 1602. It is often called the first modern securities exchange. It supported trading in shares of the Dutch East India Company. This was the first company to issue publicly traded stock. In the United States, the stock market began in 1792. Brokers signed the Buttonwood Agreement to set trading rules. Earlier, Alexander Hamilton used bonds to manage war debts. This created the first widely traded securities market in America. The New York Stock Exchange was formally organized in 1817. By 1865, over 300 securities were being actively traded. In the late 18th century, Adriaan van Ketwich created investment trusts. These allowed small investors to combine capital. This helped them diversify risk across many assets.

Investors use different strategies to find value. Value investors buy assets they believe are undervalued. They use financial reports to find these opportunities. They look at accounting ratios like earnings per share. Famous value investors include Warren Buffett and Benjamin Graham. They often use the price-to-earnings ratio, or P/E ratio. This ratio divides the share price by earnings per share. A lower P/E ratio can mean a stock is cheaper. However, comparing companies in different industries is tricky. A tech stock might have a P/E in the 40s. A telecommunications stock might have a P/E in the low teens. The price-to-book ratio, or P/B ratio, is another tool. It divides the share price by net assets. This focuses on tangible assets rather than intangibles.

Growth investing is another common strategy. Growth investors look for assets with high future earnings. They seek profits through capital appreciation. This happens when a stock is sold for more than its purchase price. Growth stocks often have a higher P/E ratio. This strategy suits those with higher risk preferences. It is often used by those with shorter investment horizons. Thomas Rowe Price Jr. popularized this method in 1950. He believed in investing in well-managed, fertile fields. A newer form is venture capital. This focuses on equity in private, high-growth companies. Some investors also use momentum investing. They buy stocks experiencing a short-term uptrend. They sell once that momentum begins to decrease. These various methods allow people to target different financial goals.