How to Build a Stock Portfolio

By Allen Krewzz

Published July 4, 2026Updated July 4, 2026

Start With Your Core Holdings

Decide How Many Individual Positions to Hold

Size Your Positions Deliberately

Diversify across market cap and style too: Diversification isn't just about industry — spreading across [market capitalization sizes](/articles/what-is-market-capitalization) and [growth versus value](/articles/growth-stocks-vs-value-stocks) styles adds another layer of resilience against any single category underperforming.

Build in a Maintenance Plan

How to Build a Stock Portfolio

Start With Your Core Holdings

Decide How Many Individual Positions to Hold

Size Your Positions Deliberately

Build in a Maintenance Plan

Add New Money Consistently

Key Takeaways

Frequently Asked Questions

How many stocks should a beginner portfolio have?

Is it bad to have too much money in one stock?

Do I need bonds in a stock portfolio?

Conclusion

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