Building a Factor Portfolio

How to actually use factors in your portfolio

1

Start with a core index fund position (VOO or VTI): 60-70%

2

Add a value tilt: 10-15% in VTV or VLUE

3

Add a small-cap tilt: 10-15% in AVUV or IWM

4

Optionally add momentum or quality: 5-10% in MTUM or QUAL

5

Rebalance annually. Don't chase whichever factor did best last year.

AVUV (small-cap value)

Best combo

value + size in one ETF

Factor diversification

Smoother

factors offset each other

Rebalance bonus

~0.5%/yr

from selling high, buying low

Combining multiple factors reduces risk because they don't move together. When value is losing, momentum is often winning. This diversification across factors is the real edge.

simple version

If this feels complicated: 70% VTI + 30% AVUV. That gives you broad market exposure with a tilt toward small-cap value, the two most documented factors combined.

Check yourself

Why combine multiple factors instead of betting on just one?