I've been thinking a lot about this lately: do we really know the difference between preferred and common shareholders? Because the truth is, many people starting to invest have no idea these two completely different worlds exist within the same company.

Look, when a company issues shares, not all of them are the same. That's the first thing to understand. Some give you voting power, others promise predictable income, and some combine a bit of everything. Preferred and common shareholders have completely different rights, and that's crucial to know where to put your money.

Let's start with the basics. Common shares are probably what you already know: you sign up on a platform, buy shares of a company, and that's it. You have voting rights at meetings, receive dividends (though they vary depending on how well the company does), and if everything goes south and the company goes bankrupt, you wait in line to recover something. The profit potential is high because they grow with the company, but the risk is real too.

Preferred shares are something else. Here, the game changes. You don't have voting rights, but in exchange, you receive more stable, almost fixed dividends. If the company is doing poorly, you get paid before common shareholders. In bankruptcy, you also have priority. Sounds safe, right? Because it is. The problem is that your money doesn't grow as much. Your return is more predictable but also more limited.

Now, why does this matter? Because preferred and common shareholders represent two completely different investment strategies. If you're young and have 20 years ahead, you probably want common shares. You accept volatility in exchange for your investment growing with the company. But if you're close to retirement or just want regular income without much stress, preferred shares are your ally.

Preferred shares come in various flavors. There are cumulative ones, where if the company doesn't pay dividends one quarter, they owe you later. Convertible ones allow you to transform them into common shares if you want. Redeemable ones can be repurchased by the company. Each variant has its trick.

Here's the interesting part: while the S&P 500 grew 57.60% in five years, the preferred stock index fell 18.05%. Why? Because when interest rates rise, the fixed dividends of preferred shares become less attractive. It's like when bonds offer better yields and everyone abandons preferreds. It's interest rate sensitivity—that's what characterizes these instruments.

If you want to invest in common and preferred shares, the process is simple: find a regulated broker, open an account, decide which company interests you, analyze its numbers, and place the order. You can buy at the market price or set a specific price. Some brokers even let you trade CFDs on these shares if you don't want to hold them in your portfolio.

My personal recommendation: don't put all your eggs in one basket. Mix common shares for growth with preferreds for stability. That way, you reduce risk and have more predictable income. And look, preferred and common shareholders together can form a pretty balanced portfolio if you know what you're doing.

The key is to know your profile. Are you high risk? Common shares. Looking for regular income? Preferreds. Want the best of both? Diversify. The preferred stock market accounts for about 71% of the preferred market in the U.S., so there's enough liquidity to play with both strategies.

In the end, understanding these differences saves you time and money. It's not complicated; it just requires paying a little attention to the details.