As an Investor, I Couldn’t Live Without These!

Hello Stoic Investors,

I was scrolling through Reddit the other day and found a post from someone asking:

After reading it, I thought I’d share something very very useful and absolutely practical:

The actual websites I use every day.

These are not just for learning theory — they help you take action.

In fact, understanding the basics is crucial, but once you’ve learned the theory, you’ll want to use tools that actually help you put things into practice.

So here are my 6 go-to websites that are perfect for beginner investors — and still valuable even when you’re more experienced.

1. Finviz

It is one of the best websites to quickly understand what’s happening in the stock market.

It’s especially helpful if you’re just starting out, because it gives you a clear, visual overview of the entire market in just a few seconds.

When you open the homepage, you’ll see a big heatmap that shows how different sectors and companies are performing.

You can immediately spot which stocks are going up, which ones are falling, and where the action is.

It’s a great way to get a feel for the market each day without having to dig through tons of data.

But what makes Finviz really powerful is its "Stock Screener".

This tool lets you filter and search for stocks based on exactly what you’re looking for.

You can sort by dividend yield, company size, valuation, performance, and more.

2. Current Market Valuation

It is a super useful website when you want to understand if the stock market (as a whole) is expensive or not.

In other words, it helps you answer the big question:

“Is now a good time to invest, or should I be more careful?”

The site looks at key indicators that professional investors use to judge whether the market is overvalued, fairly priced, or undervalued.

For example, it shows you things like the Buffett Indicator, which compares the size of the stock market to the overall economy — if the market is way bigger than the economy, it usually means stocks are too expensive.

Don’t worry if these terms sound complex — the site explains everything in a simple way, with clear charts and short summaries.

This kind of information helps you make smarter decisions — not just based on hype or headlines, but based on data.

3. JustETF

It is a great website to discover and compare ETFs.

If you’re not sure where to start with investing, an ETF (Exchange Traded Fund) is a simple way to invest in lots of companies at once, without having to pick individual stocks.

And JustETF helps you find the right ones for your goals.

The site is super practical: you can search for ETFs by region, sector, strategy, or theme (like “global tech,” “dividend growth,” or “emerging markets”).

You can also filter by risk level, cost, and performance.

It’s really helpful when you’re trying to build a long-term portfolio that matches your personal style.

If you're completely new to ETFs, a good starting point is their global ETF list, which shows popular, diversified funds that give you exposure to the whole world.

These are usually low-cost and ideal for beginners who want to invest without spending hours doing research on each stock.

I use JustETF to compare different options before I invest, especially when I want to make sure I’m not paying too much in fees or when I’m trying to balance my portfolio across different regions or sectors.

4. Dataroma

It is one of those websites that makes you feel like you’ve got insider information — without actually doing anything illegal, of course.

It shows you exactly what the biggest investors in the world (think Warren Buffett, Michael Burry, Bill Ackman…) are buying and selling.

These famous investors are required to disclose their trades every quarter, and Dataroma collects all that data in one place.

So instead of digging through boring government filings, you can just go to this site and see what the “super investors” are up to.

For example, you can check which stocks were most bought in the last quarter, which ones were sold, and how much of each position they hold.

It’s a great way to get ideas, spot trends, or simply understand how the pros think — especially when the market gets confusing.

Of course, just because a billionaire buys a stock doesn’t mean you should copy them blindly.

But it can definitely be a useful starting point for your own research.

And let’s be honest:

We all want to know what Warren Buffett is doing with his money.

I like to use Dataroma when I’m curious about how the “big players” are positioning themselves — especially during uncertain times.

It gives you a different perspective compared to just reading headlines or scrolling social media.

5. Koyfin

It is a fantastic free tool for anyone who wants to dig deeper into stock analysis without paying for expensive software.

Whether you’re a beginner or more experienced, Koyfin lets you explore detailed financial data, charts, and key metrics all in one place.

One of the best things about Koyfin is how easy it makes it to look at company fundamentals, so you can understand a company’s health before investing.

For example, if you want to check Amazon’s balance sheet to see if it’s financially strong, Koyfin has all that information clearly displayed.

It also offers a wide range of charts and data visualizations to track stock price trends, valuation ratios, and recent news.

This helps you decide the best time to buy or sell a stock based on real data, not just guesswork.

6. Investopedia Simulator

It is a great tool if you want to practice investing without risking any real money.

It lets you create a virtual portfolio where you can buy and sell stocks, ETFs, and other assets just like in the real market.

This simulator is perfect for beginners because it helps you apply everything you’ve learned in theory — like how to pick stocks, when to buy or sell, and how to manage risk — but in a risk-free environment.

You can experiment with different strategies, track your progress, and learn from your mistakes without any pressure.

The platform is easy to use and offers real-time market data, so the experience feels close to actually investing.

Plus, it’s free and you can start right away.

If you’ve ever felt unsure about jumping into real investing, the Investopedia Simulator is the perfect way to build your confidence first.

These are the 6 must-have websites that will really help you become a better investor.

They’re not many, but each one gives you exactly the useful information you need—no fluff, no distractions.

Of course, you do need some basic knowledge to use them well, but luckily there are plenty of resources online to learn from.

So, note down these 6 key-websites and start investing today:

1. Finviz: It gives you an overview of what's happening in the stock market;

2. Current Market Valuation: It shows if the overall market is overvalued or undervalued to help time your investments;

3. JustETF: You can find and compare ETFs to build a diversified portfolio without picking individual stocks;

4. Dataroma: It shows what big investors like Warren Buffett are buying and selling for insight and ideas;

5. Koyfin: A free tool to analyze company fundamentals and stock trends in detail;

6. Investopedia Simulator: You can practice investing with a virtual portfolio before risking real money.