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HomeBlogSkill Building & Careers
Skill Building & Careers

Portfolio Rebalancing: How and When to Do It

Rebalancing brings your investments back to your target mix. Learn why drift happens, the two main approaches and how to avoid costs and over-trading.

The Teyro TeamOct 26, 20261 min read
On this page7 sections
  1. Direct answer
  2. Example
  3. Approaches
  4. Watch for
  5. Where Teyro fits
  6. The bottom line
  7. More guides

If shares rise, your portfolio quietly becomes riskier than you planned.

Direct answer

Rebalancing means adjusting your investments back to your target mix after price changes have moved it. You can do it on a schedule, such as once a year, or when an asset drifts beyond a set range. You can also rebalance by directing new money to the underweight asset.

Example

You targeted 60 percent shares and 40 percent bonds. After a strong year, shares are 70 percent. Rebalancing means shifting some back toward bonds.

Approaches

  • Time-based: review yearly.
  • Threshold-based: act when a holding drifts a set amount.
  • Cash-flow: use new contributions.

Watch for

  • Trading costs and taxes.
  • Doing it so often that costs outweigh benefits.

Where Teyro fits

Teyro's How to Understand Investment Risk course turns this into short lessons you can play in a few minutes a day. It has 50 lessons, and you can start free.

The bottom line

Rebalancing keeps your risk where you chose it. This is general education, not advice.

This is general education, not personal financial advice.

More guides

  • Standard Deviation in Investing
  • Bear Market Explained
  • Risk Capacity vs Risk Tolerance
  • Asset allocation basics
  • Diversification basics
  • How to Understand Investment Risk course

Frequently asked questions

What is portfolio rebalancing?

It is adjusting your holdings back to your target asset allocation after market moves have shifted it.

How often should I rebalance?

Some people do it once a year or when a holding drifts a set amount from target. Costs and taxes can matter.

How do I rebalance without selling?

Direct new contributions toward the asset class that is below target.

Learn it by playing

How to Understand Investment Risk turns this into short, playable lessons. Free to start.

See the How to Understand Investment Risk course

Free to start · No credit card needed

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Written by

The Teyro Team

Learning Team at Teyro

We build Teyro — an AI-powered learning platform that turns skill-building into a daily habit through bite-sized, gamified lessons. We write about the learning science and study strategies that shape our product.

More from The Teyro Team

On this page

  • Direct answer
  • Example
  • Approaches
  • Watch for
  • Where Teyro fits
  • The bottom line
  • More guides

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