Five stocks is a concentrated portfolio if that’s your entire investment account. There’s no ideal number for everyone: the size of each holding and your exposure to different industries matter more than the count alone. The SEC’s investor guidance says four or five individual stocks do not provide adequate stock diversification. [Investor.gov](https://www.investor.gov/additional-resources/general-resources/publications-research/info-sheets/beginners-guide-asset)

Assuming your $10,000 is for long-term stock investing, both options have tradeoffs:

| Approach | Advantage | Main problem |
|---|---|---|
| Option 1: Always hold five stocks | Easier to research and monitor | At equal weights, each company accounts for 20% of your money. If one stock falls 50% and the others stay flat, your portfolio loses 10%. |
| Option 2: Add stocks as opportunities arise | Can improve diversification | Without limits on position sizes and industry exposure, you can end up with overlapping bets. Buying stocks because they’ve recently done well can also lead to performance chasing. |

I’d favor Option 2 with clear rules for buying and selling. Add a stock when its business prospects and valuation make it worth owning, and consider how it fits with your existing holdings. A rising share price alone isn’t enough reason to buy. Sell if your reason for owning it no longer holds, the valuation becomes unattractive, or the holding grows too large. A stock being your worst recent performer isn’t enough reason to sell it.

For a portfolio made entirely of individual stocks, 20 to 30 holdings across different industries is a reasonable planning range. That count doesn’t guarantee adequate diversification. For example, a 5% initial position limit means you need at least 20 holdings when fully invested, yet 20 closely related technology stocks can still leave you heavily concentrated. [FINRA’s explanation of concentration risk](https://syndication.finra.org/content/concentrate-concentration-risk-0)

For a $10,000 portfolio, I’d generally use a low-cost, broadly diversified index fund as the foundation and set aside a smaller amount for individual stocks you want to research. An illustrative split would be $8,000 to $9,000 in broad funds and $1,000 to $2,000 in individual stocks. A broad fund can hold hundreds or thousands of companies in a single position. [Vanguard](https://investor.vanguard.com/investor-resources-education/understanding-investment-types/stocks-and-bonds)

Holding five individual stocks alongside a diversified foundation carries very different risk from putting all your money into those five. The approach you choose should fit your time horizon, tolerance for losses, and other investments.