SCHX owns about 750 of America's biggest companies for a 0.03% annual fee. It is, for practical purposes, the US stock market in one ticker. Every other note in this library is implicitly competing against it: beat this, after fees and effort, or just own this.
Scale is 0–50%/yr. The shape of the verdict: the market's own return clears neither hurdle on the base case. That is the point: it is the hurdle, not the trade.
SCHX tracks about 750 large US stocks, weighted by size. Its 10-year return runs about 15% a year, which is exceptional by historical standards. Buying it is buying the collective output of American big business, no opinions required.
The S&P 500 is assembled by a committee. Real people apply judgment: a company must show four straight quarters of profit before it gets in, which is how Tesla, obviously one of America's largest companies, sat outside the index for months in 2020. SCHX's index works differently. It mechanically owns the 750 largest US stocks by market value, re-ranked on a fixed schedule. No one's opinion can keep a qualifier out or slip a favorite in. One whole category of human bias, removed by construction.
Every stock pick is a bet that you can do better than this fund, after the effort and the trading costs. Most professionals cannot, which is useful humility: the burden of proof is on the picker, not the index.
The 10 biggest holdings are 36% of the fund: Nvidia, Apple, Microsoft, Amazon, Alphabet. Owning "the market" today increasingly means owning a handful of AI giants. That concentration has driven the great returns, and it is also the risk.
At 0.03%, fees are a rounding error. Compare BCTK at 0.75%: 25 times more expensive. Over decades, the gap between 0.03% and 1% is one of the largest reliable edges in investing, and it requires zero skill to capture.
The base case (~9% a year) clears neither hurdle, and that is fine, because SCHX is not trying to clear them. It is the fallback, the measuring stick, and the thing you own while you wait. In this library, it is the benchmark everything else is judged against.
By definition, the index earns the average. If your goal is exceptional returns, this fund guarantees you will not get them. It is the floor of ambition, not the ceiling.
More than a third of your money rides on 10 mega-caps. If the AI giants stumble together, the "diversified" index falls with them. Diversification across 750 names is thinner than it looks.
Index funds do not dodge bear markets. A 30% market fall is a 30% fall here. The low fee does not protect you; it just means you lose cheaply.
15% a year for a decade is far above the century-long average of ~10%. Starting from rich valuations, the next decade will probably look more ordinary. Anchoring on the recent past is the classic index-investor mistake.
Every dollar here is a dollar not in a 12% or 30% idea. The index is the right default, but "default" should be a conscious choice, revisited whenever a genuine high-conviction idea appears.