Diego Lepage’s Guide to Understanding the Stock Market

Investing can seem far more complicated than it really is for someone entering the stock market for the first time. Charts move throughout the day, experts offer opposing opinions, and endless headlines talk about what the market may do next. As an investment advisor, Diego Lepage knows it’s easy to feel like every decision must be made quickly and with perfect certainty. 

But before choosing a stock, an exchange-traded fund (ETF), or a mutual fund, a new investor should understand the market and its subsequent risks. That way, they grow confidence from understanding the process, not from assuming every investment decision will produce a positive result.

What Actually Happens When You Buy a Stock?

A stock represents an ownership interest in a publicly traded company. If someone buys shares in a company, they’re essentially buying a small piece of that business. That ownership doesn’t give them day-to-day decision-making power, but it does mean their investment can rise or fall with the company’s market value and performance.

When an investor decides to place an order, it usually follows a fairly straightforward path:

• The investor decides to buy or sell.
• A broker or trading platform transmits the order.
• The market matches the order with someone willing to take the other side of the trade.
• The transaction occurs at an available price.

Stock exchanges and electronic trading systems make those transactions possible by connecting buyers and sellers, allowing prices to adjust as demand changes. It’s important to note that the price displayed on a trading app isn’t always a fixed number assigned by the company itself. It’s dynamic and refers to the most recent price at which buyers and sellers were willing to deal. Implying if there’s more demand to buy a specific stock, the price would increase along with it. If more people are trying to sell their stock, prices would drop.

That’s why a share price can move even when nothing dramatic seems to have changed inside the business. The stock market constantly responds to new information, changing expectations, and the choices of millions of participants.

Who Participates in the Stock Market?

The stock market includes multiple types of stakeholders with different goals, time frames, and, of course, varying levels of capital. 

Most individual investors put money aside for retirement or for long-term wealth building. Some prefer to invest gradually over many years, while others trade more actively, which in turn also requires investing more time, knowledge, and emotional discipline.

Institutional investors play a major role in the market as they encompass pension funds, mutual fund managers, insurance companies, banks, and investment firms that manage large pools of money. Their trades are ample, and their research teams often respond quickly when new market information comes in.

In contrast, there are companies that participate by issuing shares to raise capital. These funds invest in expansion, research, new facilities, acquisitions, or other overarching business goals. Brokers and financial institutions enable investors to place such trades, while market makers and other participants help provide liquidity. In simpler terms, liquidity makes it easier for people to buy or sell without waiting too long for either a buyer or seller to be found.

Lastly, there are regulators that set and enforce rules to support fair markets and protect investors from misleading disclosures and fraud. This helps maintain investors’ confidence and supports the overall integrity of financial markets.

The above stock traders bring different strategies to the market, and the diversity in their financial goals is instrumental in moving markets.

Stocks Are Only One Way to Invest

When people hear about investing, they immediately assume buying shares in individual companies is the only, and oftentimes, best option. Indeed, individual stocks can be useful for investors who want direct exposure to a specific business, but they’re quite limited when it comes to diversified investments.

ETFs

An exchange-traded fund, or ETF, is a fund that comprises a collection of investments and trades on an exchange like a stock. An ETF may hold shares in many companies, bonds, or other assets. Some focus broadly on a market, while others focus on a specific industry or geographic location.

Mutual funds

To a certain extent, mutual funds also pool money from various investors and invest according to a fixed strategy. However, unlike most ETFs, mutual funds are typically bought and sold at the end-of-day price rather than throughout the trading day.

Index Funds

Index funds track a specific market index, such as an index made up of large companies or companies in a particular region. They may be structured as either ETFs or mutual funds. Their main purpose is generally to follow the performance of the chosen index rather than choosing individual companies in hopes of finding the biggest hit.

Every option has its own trade-offs. Individual stocks provide more control over investments, but they can also create acute concentration risk if concentrated capital is placed in one company. Funds may offer broader diversification, although an investor should still look at what the fund holds, how it’s managed, and the fees that apply. Investments aren’t one-size-fits-all, and not every investment will be suitable for every investor. In Diego’s opinion, a beginner should start by deciding on their own goals, time horizon, and comfort with risk instead of following hype or blindly copying someone else’s investment portfolio.

What Actually Moves Stock Prices?

One of the first lessons for new investors is that a stock price doesn’t move because a company is doing well or poorly in one day. The prices reflect what the market predicts the company will do in the future. 

As much as company earnings matter, so do the expectations for their revenue growth, profits, competition, debt, and future opportunities. Factors such as interest rates, inflation, economic conditions, and industry trends can all influence how investors perceive a company. 

Valuation is another piece of the picture. When a company is growing quickly, investors can get excited and bid the share price higher. The catch is that expectations often rise with it. So even if the company reports strong earnings, its shares can still fall simply because investors were expecting something better.

Investor sentiment can add another layer to market movements. During optimistic periods, investors may be more willing to buy more and accept more risks. When uncertainty arises, the same investors may become more defensive and even sell their strongest portfolio companies. Trading volume, available liquidity, large institutional trades, and major political or economic events can all magnify their choices.

That’s why daily price changes don’t always paint the full picture. A falling share price isn’t automatically proof that a business is failing, just as a rising share price does not mean the business will be a solid investment. Looking beyond the headline numbers helps an investor make more thoughtful decisions.

The Risks New Investors Should Understand

Investing always involves some level of uncertainty. A common beginner mistake is focusing only on possible returns without giving the same attention to other factors that could go wrong.

Before investing, you should consider asking these questions:

• How much money can the investor afford to put at risk?
• When might they need that money again?
• How would they react if the value fell sharply?
• Do they fully understand the company or fund they are buying?
• Is too much of their portfolio tied to one business, industry, or investment theme?

Diversification can help reduce the impact of one poor investment result since capital remains stretched across different holdings, but it doesn’t remove all market risk. A diversified portfolio can still decline when markets fall broadly. 

When evaluating an individual company, an investor may also want to understand its operations, its debt levels, how it generates revenue, and the risks in its industry. A responsible approach begins with understanding the potential downside, not just relying on the best-case scenario. 

Building Confidence Through Understanding, Not Prediction

The stock market may appear unpredictable when an investor monitors it closely every single day. Daily headlines make it tempting to react quickly, especially when stock prices go up or drop significantly. Market forecasts can also sound convincing, but no one can predict every outcome consistently.

An investor should take a steady approach and understand the reason behind each investment with a clear strategy. This means knowing how long the money is intended to stay invested, and what role that investment plays in the wider portfolio.

Good investing also involves checking decisions against the facts instead of responding to every market swing. If something important about the investment has changed, it makes sense to reassess. If the only trigger is an intimidating headline or one volatile trading day, patience may be a better response. 

It’s impossible to remove uncertainty from investing, but new investors can reduce avoidable mistakes by learning the basics and giving themselves time to understand their choices.

Conclusion

Diego believes that understanding the stock market starts with its basic mechanics: the people and institutions involved, available investment choices, and the associated risks. Markets can be unpredictable, and it’s hard for new investors to learn everything quickly. Instead, they should understand what they’re buying, why it may fit their investment goals, and how that knowledge can give them a more informed and measured basis for deciding what to do next.