When I Started Choosing Core Assets With Alpha, Not With a Feeling
Redefining 'core assets' with Alpha: no longer picking based on feeling or familiarity, but screening with three quantifiable lines — excess return, Sharpe Ratio, and downside protection. A replicable framework for selecting core assets.
When I Started Choosing Core Assets With Alpha, Not With a Feeling
What Is My Real Goal, Actually?
For the overall account's NAV to grow upward steadily and bearably over a long period. It's not about maximizing any single return — it's about satisfying these three conditions at the same time:
Why Reexamine VOO / VOOG / VONG / SPMO?
I used to intuitively assume: a momentum strategy (SPMO) should be the core with the highest growth efficiency; high-dividend assets are "conservative"; growth ETFs are just a supplement.
But once I pulled the lens back from "a single asset" to "the overall account NAV," these intuitions started to crack. What I needed wasn't which name "feels stronger" — it's which one is genuinely stable and efficient within the overall account framework.
What "Factual Metrics" Did I Use to Reevaluate?
Setting intuition aside, I switched to four quantifiable factual metrics to systematically reexamine every candidate core asset:
Which one makes the account's equity curve least smooth? Higher volatility means more pressure toward irrational decisions.
Which one genuinely earns more across a complete cycle? Not a bull-market spike — a complete cycle.
Which one recovers steadily after a drawdown? How smooth that recovery curve is determines the holding experience.
Which one leaves the most net return for the "same amount of risk" taken on? The Sharpe Ratio is the key here.
The Conclusion the Data Gave Me (Not a Feeling)
Evaluating each of the four candidate core assets against the four factual metrics gives the following results:
Highest volatility, deepest max drawdown, least stable recovery, and a lower Sharpe Ratio. It runs fast in certain phases, but it drags down the quality of decisions across the overall account. It can only be a "style tilt," not a core.
Growth concentrated in mega-caps, strong bull-market punch, but volatility and drawdown expand right along with it. Suited for a tactical bet, not suited to carrying the job of stable overall-account growth.
Stable and predictable, but with no stylistic efficiency gain. It's the baseline for every evaluation, not the best solution.
Lower volatility than VOOG/SPMO, long-term annualized return that's nearly as good, a smooth recovery after sharp drops, and the best Sharpe Ratio and drawdown-adjusted return. It leaves the most net profit for the same amount of risk.
The One Fact I Finally Accepted
This isn't a change of belief — it's starting to choose with a "system" instead of "expectation."
