Stock market basics · updated October 21, 2026
What is an investment portfolio
Your portfolio is the sum of your investments: the stocks, ETFs, bonds, crypto and cash you keep for investing. What matters is how they behave together, not only one by one.
How it works
A portfolio is described by what percentage of the money sits in each type of investment. For a beginner, a simple portfolio can have two or three parts: an ETF on stocks from around the world, one on bonds and a little cash. On einvestitii.ro you can follow your stocks in a watchlist, and each company's page shows its risks.
Worked example
You have $10,000 to invest and split it like this:
If stocks fall 20%, the portfolio falls about 12%, not 20%.
Worth knowing
A good portfolio is one you can hold through the bad years too. If a 30% drop would make you sell everything, you hold too many stocks for you.
When a portfolio can fool you
Too many small positions: 40 stocks of $50 each are hard to follow and cost a lot in fees. Emergency money is not part of your portfolio: keep it separate.
Related terms
Learn it in the Academy
Questions about a portfolio
What does a beginner's portfolio look like?
Simple: one or two broad stock ETFs, maybe government bonds and some cash. The rest can come once you understand what you are buying.
How often should you check your portfolio?
For long-term investments, once a month or once a quarter is enough. Checking daily pushes you into rushed decisions.
These explanations are for information only. They are not a recommendation to buy or sell.
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