I just reviewed something that many beginner traders overlook: the difference between a traditional stock market simulator and a broker's demo account. Spoiler: they are not the same, and that matters a lot.

Most people think that a virtual stock market is just a virtual stock market, but the reality is more interesting. Educational simulators like Investopedia or La Bolsa Virtual give you that feeling of real investing, but without the exact reflection of what you'll see when trading with real money. Broker demo accounts, on the other hand, are like an almost perfect replica of the real platform: same tools, same assets, same execution.

Why does this matter: if you only practice on a basic simulator, when you open your real account, you'll be surprised by the execution speed, the variety of available orders, even the spread. It's like practicing with a video game and then trying to do the same in real life.

Now, what are they really for? Two things: training and practice. Training is for when you're starting out, when you need to understand what an index is, what Forex is, how CFDs work. Practice is when you already know the basics but want to test a new strategy or explore an asset you've never touched. The best brokers let you switch between demo and real accounts seamlessly, so you can try something virtually and then do it seriously the next day.

Regarding what you can trade, it depends on where you practice. Simulators give you the basics: stocks, indices, Forex. But serious broker demo accounts open up the entire menu: cryptocurrencies, CFDs, ETFs, commodities. MyTrade, for example, allows access to thousands of assets in its virtual exchange, and the fake capital they give you is enough to run real tests.

What's interesting is that the market offers options for everyone. If you're looking for something simple and educational, you have MarketWatch with its famous virtual stock market. If you prefer something closer to the real trading experience, IG gives you access to MetaTrader and thousands of CFDs. eToro is great if you're interested in social trading. HowTheMarketWorks is practically a school, training half a million students a year.

Now, the problems: first, most simulators are slower than real life. It makes sense because they are educational tools, not trading platforms. Second, some brokers limit your demo account to 30 days, forcing you to trade with real money before you're ready. Third, and this is psychological: when you have $50,000 virtual dollars, you tend to trade differently than when you have $5,000 real. It's the euphoria of money that isn't yours.

To use a demo account well, you need to treat it as if it were real. Follow your risk rules, keep a record, analyze your mistakes. It's not a casino. And here’s what many don’t know: major investment funds use simulators constantly before making real trades. It’s not just for beginners.

My advice: choose a simulator or demo account that offers the assets you really want to practice. If it's a basic virtual stock market, use it to learn concepts. If it's a broker demo account, use it to get used to the real platform. Combine both if possible. The fake capital they give you is enough to experiment without fear, but not to fool yourself about what it's like to trade under real pressure.

The best part is that almost all of them are free. So there's no excuse not to practice before risking your money. Some brokers even let you switch between demo and real whenever you want, so you can test an idea virtually and execute it seriously the same day if it works. Just choose your tool wisely. Not all simulation platforms are the same.