Trading & Investing Strategies
Portfolio Theory
Risk management and simple, durable strategies that keep you in the game.
In this lesson
- Why diversification reduces risk
- What a balanced portfolio looks like
Key takeaways
- 1Diversification spreads risk across uncorrelated assets
- 2A balanced portfolio trades some upside for stability
- 3Allocation, not single picks, drives long-term results
Lesson summary
Diversification spreads risk so one asset or thesis does not decide the whole outcome.
Mental model
The core idea behind portfolio theory
Diversification spreads risk so one asset or thesis does not decide the whole outcome. It is not about owning many tickers; it is about owning exposures that do not all fail together.
- Why diversification reduces risk
- What a balanced portfolio looks like
Mechanics
How to reason about portfolio theory
Assets can be diversified by sector, chain, strategy, liquidity profile, and risk level.
Correlation rises during market stress, so apparent diversification can disappear.
Allocation should reflect conviction, volatility, and liquidity.
- Diversification spreads risk across uncorrelated assets
- A balanced portfolio trades some upside for stability
- Allocation, not single picks, drives long-term results
Example
Portfolio Theory, applied
Holding five AI tokens may look diversified by ticker count, but the portfolio can still depend on one narrative.
Common mistakes
Common mistakes with portfolio theory
Buying many small positions without understanding them creates complexity, not diversification.
Risk notes
Reading the risk in portfolio theory
Over-diversification can dilute good ideas, while hidden correlation can make losses arrive at the same time.
- List each position's main risk driver.
- Check whether assets move together.
- Keep allocation aligned with liquidity.
Practice
Put portfolio theory to work
- List each position's main risk driver.
- Check whether assets move together.
- Keep allocation aligned with liquidity.
Review
Key terms
- Liquidity
- How easily an asset can be bought or sold without moving its price much.
- Volatility
- How sharply a price swings over time — higher volatility means higher risk and opportunity.
- Wallet
- Software or hardware that stores the private keys controlling your on-chain assets.
- Correlation
- How closely two assets' price movements track each other.
- Diversification
- Spreading capital across assets to reduce risk.
Source notes
Editorial references
These references are starting points for verifying the mechanisms, risk checks, and product context behind this lesson.
Before you continue
Can you do these?
- List each position's main risk driver.
- Check whether assets move together.
- Keep allocation aligned with liquidity.
Related learning
Keep reading
Checkpoint
Finish this lesson
Pass the check to save progress, then continue through the track in order.
Lock in this lesson
Answer every question correctly to complete the lesson.
Diversification aims to…