Every evening, television anchors and financial portals announce whether the market closed higher or lower, and millions of households nod along without knowing what the number really means. A reading on the Kospi Index may reflect how semiconductor and electronics-driven shares are faring during early trading hours, and that mood often influences sentiment before Indian exchanges open. At home, the daily change in the Sensex Index summarises the collective verdict of investors on thirty large, established companies. Learning to interpret such figures properly turns a headline into useful information instead of a source of anxiety.
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What a Benchmark Actually Measures
A stock benchmark is a carefully chosen set of stocks meant to serve as a representative of the larger market. It is neither the market nor your personal portfolio. So, when the headline number rises by half a percentage point, it means that the weighted average price of the selected set of stocks in the benchmark has risen by that much, not that all stocks in the market have risen
In other words, because different stocks carry different weights, a jump in the price of a few heavily weighted stocks can push the entire benchmark upwards, even if lesser-known stocks in your portfolio continue to languish or fall.
Points, Percentages and Context
Novice investors tend to get too excited or despondent about movements in points. A fall of six hundred points sounds far more intimidating than a one per cent drop in the value of the index, since percentages account for the actual value of the stock and adjust for differences in the scale between large-cap and small-cap stocks. Context is key when it comes to trying to understand market movements because a two per cent dip in the middle of a bullish run can be perfectly normal, in contrast to the same two per cent fall in a bear market. Look at overall movements in the index, and also at how much value other indices such as the Nifty midcap and smallcap have gained or lost. If a large number of mid and small-cap stocks are rising despite a dip in the headline number, then the market move may be considered relatively benign.
What Does it Mean for My Portfolio?
The majority of individual retail investors do not have direct exposure to the benchmark indices. A typical investor could have a mix of a few directly owned stocks, mutual funds and perhaps even some gold. The more intelligent question for an individual investor to ask themselves when they hear frightening news about the markets is: How do these movements affect me? Create a mini shortlist of what you typically own and set out parameters for what could affect each stock, depending on what the company sells. Interest rates could affect banks, monsoon rains impact rural demand, and the exchange rate impacts exporters. When you see a market movement, check what its impact could be on your personal shortlist. If there is nothing there, you need not lose sleep over market ups and downs.
Avoiding Common Pitfalls
The biggest mistake investors make while interpreting movement in the numbers is looking at day-to-day movements. Most market fluctuations are random and are caused by a combination of factors, including news in the market and simply day-trading activity. Trends tend to emerge over a period of months and years, and are far more relevant than day-to-day swings. Investors should instead look at longer-term trends, supported by factors such as consistent growth in earnings and the overall economy.
Another common mistake is evaluating movements in isolation and without context. A number that was reached decades ago is not relevant when it comes to comparing two indices. When judging where the market is headed, value metrics such as price-to-earnings or price-to-book ratios and growth in earnings are more relevant than isolated movements in the number.
Lastly, investors must avoid believing commentators who wrongly claim to have a deeper knowledge of the market. Contextualising the situation is far more difficult than it looks, and many in the media industry like to take advantage of that. Remember that for every situation there is usually a mix of reasons behind it, rather than one cause-and-effect theory.
Reading the fine print in the markets is a skill set that can be acquired, but it requires patience and practice. A good way to start would be to look at one financial news website every evening and familiarise yourself with the percentage change in the number, which stocks dominated the movement and any major announcements in the market. The more you look at something, the more it becomes intuitive. You will find yourself switching off to impulsive reactions to market movements, and instead developing a well-rounded perspective that will keep you calm in the face of volatility. The next time you look at news about the markets, remember that the intent should not be to predict the future, but to understand the present. A more informed investor is a far less impulsive investor, and far less impulsive actions when the markets move are what healthy long-term investing is all about.
