Quality Style Diversification and Rebalancing
Diversify across quality styles, then lean against valuation extremes
- Difficulty
- Advanced
- Time to result
- ~ongoing to results
- Steps
- 5
- Confidence
- 95%
This framework treats quality as a business characteristic rather than a synonym for growth. A quality opportunity set can contain technology-led growth companies, defensive core holdings such as consumer staples, and more cyclical value names. Because these groups tend to lead during different phases of the market cycle, holding candidates across the spectrum can reduce style concentration. The allocation is not fixed: valuation and prospective return determine how much of each style belongs in the portfolio. Familiarity with all three groups lets the manager lean against prevailing sentiment, adding to quality growth after a selloff or shifting toward quality value after growth has surged. The mechanism combines a common quality threshold, cross-style diversification, and opportunistic rebalancing so that price volatility becomes a source of portfolio improvement rather than a reason to chase recent winners.
Origin
Extracted from Masters in Business, where Tom Hancock explains how GMO deliberately combines growth, core, and value companies within its quality strategies.
Core principles
- 01Quality can appear in both growth and value stocks
- 02Different quality styles lead during different market regimes
- 03Allocations should reflect opportunity rather than fixed quotas
- 04Valuation moves create opportunities to rebalance
- 05Diversification works best when paired with active discipline
How to run it
- 1
Define the common quality threshold
Require every candidate to possess durable returns, defensible capabilities, relevance, and prudent finances. Do not relax the standard merely to fill a style bucket.
Pro tip Apply one quality definition consistently across sectors.
Watch out Style diversification cannot rescue low-quality holdings.
- 2
Map the opportunity set
Group qualified companies into quality growth, core quality, and quality value. Use the groups to understand economic sensitivity and valuation exposure rather than as rigid labels.
Pro tip Think technology for growth, defensive staples for core, and cyclical businesses for value as starting examples.
Watch out Do not assume every company in a defensive sector is high quality.
- 3
Measure relative opportunity
Compare prospective returns and valuations across the groups. Identify where enthusiasm has become excessive and where intact quality has become neglected.
Pro tip Focus on forward returns instead of recent style performance.
Watch out Recent outperformance may reflect better fundamentals rather than overvaluation.
- 4
Set flexible exposures
Maintain exposure across styles when opportunities justify it, but do not force fixed allocations. Permit a style to become small when its valuations are extreme.
Pro tip Use diversification as a default, not an unbreakable rule.
Watch out Mechanical equal weighting can compel purchases at unattractive prices.
- 5
Lean against the wind
Rebalance toward quality styles whose prices have fallen relative to fundamentals and away from those with diminished expected returns. Make the adjustment deliberately rather than chasing momentum.
Pro tip Use predefined valuation ranges to prompt review.
Watch out A falling price is not an opportunity if the underlying quality has deteriorated.
In the wild
Hancock says GMO held different kinds of quality companies and then actively rebalanced between them. The team bought growth stocks near the end of 2022 after their decline and moved toward value stocks more recently as relative opportunities changed.
→ Cross-style familiarity allowed the portfolio to respond to valuation shifts without abandoning its quality standard.
Common mistakes
Equating quality with growth
Treating quality as a growth-only factor creates concentrated exposure to one market regime. Durable businesses also exist among defensive and cyclical stocks.
Fixing permanent style weights
Rigid allocations ignore major changes in valuation and prospective return. Exposures should respond to the available opportunity set.
Chasing the winning style
Buying only what recently outperformed reverses the intended discipline. Rebalancing should lean toward intact quality whose valuation has improved.
Is it for you?
Best for
It is best for long-term active investors who can evaluate quality companies across defensive, growth, and cyclical sectors.
Not ideal for
It is not ideal for investors seeking fixed style weights or purely passive exposure.
From the transcript
“quality is neither growth nor value, can find both within it.”
“So it's not a fixed allocation, but it does gives us diversification, and because we're familiar with stocks across this spectrum. It also gives us…”
“we've been leaning against the wind to buy the growth stocks. At the end of twenty twenty two, the value stocks. More recently, just rebalancing…”
From the episode
Tom Hancock on Quality Stocks and Launching ETFs
Tom Hancock