Stock prices are the function of demand and supply i.e., prices are determined by buyers and sellers. But the question is, what drives the buyers to buy or sellers to sell? Unfortunately, there is no exact equation that tells us the factors affecting the stock price.
Prices of stock move up or down due to company-related factors, i.e., those factors that are inherent to the organization like production, supply chain, strike, controversy, problems with the company’s Board of Directors etc. The risk associated with company-related factors is called unsystematic risk. Stock prices also move because of environmental factors, known as systematic risk, which is associated with the market.
Let us examine some of the key drivers of the equity market:
Fundamental Factors
When you buy shares/equity of the company, you buy part ownership into that company. For instance, if you buy 10 shares of Reliance industries, you become part owner of Reliance and all the factors that are inherent to Reliance industries will move the stock price of Reliance. These are focused on two major dynamics:
- Earnings Base: Earnings base measures the company’s earnings using a financial ratio called Earnings Per Share (EPS). Here, the company's net earnings available to equity holders are divided by average outstanding shares over a period. For example, Amazon.com Inc's earnings per share (as reported by Nasdaq.com) are $6.48, $14.11, and $27.79 for the years ended December 31st, 2019, 2020 and 2021, respectively.
- However, EPS is arbitrary and does not tell you whether the number is good or bad. We use one more earnings base called Price Earnings or (P/E ratio). Price earnings ratio is calculated using share price divided by earnings per share. Higher earnings per share means higher profitability and vice versa.
- Valuation Multiple: Valuation multiple measures company expectations about the future. Here, we calculate the present value (PV) of all the future cash earnings. Two factors that are critical here are:
- The expected growth in the earnings
- And discount rate, which is the rate used to discount future streams of cash flow into its present value. What determines the discount rate? It is a perceived risk.
- A riskier stock will have a higher discount rate and vice versa. Inflation is also a component of the discount rate. Higher inflation earns a higher discount rate.
Technical Factors
Technical factors are a mix of external conditions that impact stock prices. Some of these directly or indirectly impact the company’s fundamentals. Technical factors that lead to the movement of stock prices are:
- Inflation: In layman’s terms, inflation is a general rise in the prices of goods and services. Low inflation has a strong inverse correlation with valuations, i.e., low inflation drives high multiples. Both very high and very low inflation (negative inflation/deflation) can create problems for companies. The chart below depicts countries with high and low inflation in April 2020.
- Economic Strength of Markets and Peers: One of the critical factors that move the stock price is the economic strength of the market and the performance of other companies in the same sector. For example, Tata Consultancy Services (TCS) prices would also depend on other companies in the IT sector like Wipro, Infosys, HCL Technologies, Tech Mahindra etc.
- Substitutes: Companies compete for investment with other asset classes. These could be corporate bonds, government bonds, commodities, real estate etc. Expectations from equity go up with the interest rate on corporate bonds.
- Incidental transactions: the stock buying/selling is often motivated by factors other than intrinsic value. Examples could be insider trading, where you buy or sell a particular stock because you have access to information before others that would move the stock price. You act on the same and buy/sell large quantities of shares to make a quick gain. Insider trading is banned in India as per SEBI regulation.
- Demographics: Demographics play an important factor in stock price movement. Younger people tend to take higher risk and have a higher proportion in equity markets than older people. With age, the percentage of investment in debt or money markets increases, whereas that of equity decreases. Risk appetite of people with growing age reduces and hence their equity investment.
- Trends: Those who track technical studies often identify the trend in the stock movement. They would buy the stock if it is in an uptrend and vice versa. Technical study deals with charts and patterns. In technical terms, the decision of when to buy is more important than what to buy.
- Technical study makes use of candlestick patterns, charts, moving averages etc. Those desirous of understanding technical analysis will have to study these charts, patterns and trends in detail on live markets.
- Liquidity: Liquidity refers to the number of people who buy and sell stock on a regular basis. The higher the number of investors/traders interested in the stock, the higher the liquidity. Blue chip stocks like Reliance Industries, TCS, Tata Motors, HUL etc., are highly liquid stocks.
News
News related to a particular stock or market impacts the stock price. Although it is difficult to anticipate and quantify the impact, political news, war-like situations, pandemic breakouts, news on vaccines etc., have a bearing on the value.
Market Sentiment
Market sentiment is the understanding of behavioral finance. Behavioral finance studies the effects of psychology on financial markets and investors. It refers to the market sentiments individually and collectively Greed and fear are two major emotions that impact the buying/selling decision of individuals. Market sentiments could be biased, subjective and obstinate. It is also driven by news on the market or a particular stock.