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S&P 500 Equal Weight: a strong latest year, a more complex history
Comparison date: October 31, 2026. USD total returns; multi-year periods annualized. Published November 13, 2026.
1. The same companies, different weights
The standard S&P 500 weights constituents by float-adjusted market capitalization. S&P 500 Equal Weight resets each company to approximately 0.2% at quarterly rebalances; weights drift between reviews. Its smaller-company tilt concerns smaller S&P 500 constituents, not a wholesale switch to small caps. Index construction: S&P DJI.
Equal company weights do not mean equal sector weights. Sectors containing more companies receive more weight. Rebalancing trims recent winners and adds to laggards, which can help when leadership reverses and hurt when winners keep winning. S&P DJI FAQ, April 20, 2026.
2. The latest year: October changed the comparison
Over the 12 months ending October 31, 2026, Equal Weight returned 18.3%, versus 12.1% for the S&P 500: a 6.2 percentage-point advantage. October alone delivered +5.0% versus −0.9%. S&P DJI October dashboard, pages 3 and 15.
I calculated the first row as (1 + annual return) / (1 + October return) − 1 using rounded inputs. It is not a separate daily observation. Equal Weight was slightly behind in this window before October; the final lead emerged with the sharp reversal in leadership. These overlapping periods must not be added.
Exchange operator Cboe described weaker mega-cap technology and rising volatility: VIX increased from 16.34 to 19.42 in October. That is consistent context for the leadership change. Cboe also reports price indices; those returns are not mixed into the total-return comparison above. Cboe, November 3, 2026.
3. Longer horizons reverse the ranking
These are geometric annualized returns, not cumulative gains. The cap-weighted index leads in every window. A strong latest year does not erase the longer relative shortfall. S&P DJI October 2026, page 3.
My interpretation: broader participation can be real without establishing a lasting end to mega-cap leadership. One year cannot settle which weighting approach will perform better over the next decade.
4. Historical outperformance depends on the window
Live publication began on January 8, 2003. S&P DJI, “Worth the Weight”, 2024. In a separate study covering January 31, 2003–December 31, 2022, Equal Weight returned 11.50% annually, compared with 9.99% for the S&P 500, a 1.51 percentage-point annual advantage. This is a specific nearly 20-year window, not an inception-to-today update. S&P DJI, “20 Years and Counting”.
The endpoint matters: in 2023, Equal Weight gained 13.9%, while the S&P 500 returned 26.3%. A positive absolute return can coexist with a substantial benchmark shortfall. S&P DJI December 2023, page 1.
“Worth the Weight” also examines history rebased to the end of 1970. The pre-launch portion is back-tested, not a return earned by an available investment strategy at the time. The research examines size, sector and style exposures. It does not establish a guaranteed premium. S&P DJI research, July 2024.
5. Less concentration still means equity risk
At October month-end, technology represented about 14% of Equal Weight and 37% of the S&P 500; industrials accounted for 17% and 8%. Annualized volatility was 11.8% versus 12.7% over the latest year, but 16.6% versus 15.3% over 10 years. S&P DJI, pages 3 and 15.
Reducing one giant's influence does not guarantee a smoother portfolio. Broad economic and earnings shocks still matter. Volatility and maximum drawdown are different measures; this article does not claim to have measured the latter.
6. Index performance is not an investor's net return
Invesco RSP is one implementation; its operator quotes a 0.20% total annual expense ratio. This illustrates costs, rather than recommending a product. Tracking difference, spreads, commissions and investor taxes can also affect realized results. Invesco RSP.
The comparisons use USD. An investor measuring returns in PLN also faces USD/PLN movements unless a particular strategy hedges that exposure. The currency in which a fund unit trades does not itself establish hedging.
7. What I would watch next
Equal Weight is a useful check on whether a rally extends across companies. It is not a pure count of advancing stocks or a standalone buy signal. I would ask whether relative strength persists beyond one exceptional month, whether earnings improve among companies with greater representation, and whether any expected benefit justifies costs and different risks.
History helps frame those questions; it does not identify the next cycle's winner in advance.
8. Dates, methodology and sources
Published November 13, 2026. “Latest year” means the latest complete month-end window, October 31, 2025–October 31, 2026, rather than a calendar year or the period ending on publication day. The report is dated October 31; October's final trading session was October 30. Total returns reinvest dividends and exclude product costs and investor taxes. Charts are original presentations, not invented daily paths. Download data and the supporting calculation as JSON.
Primary sources: S&P DJI October 2026 dashboard, index construction, FAQ, 2003–2022 study, 2024 research, 2023 results, Cboe October 2026 review, and Invesco RSP. The illustrative photographs date from 2012 and 2007; captions identify their authors and usage rights.
Marcus Lepidus
Posts reflect the author’s personal views as of publication. They are not investment recommendations.