Direct answer
The S&P 500 Growth and S&P 500 Value indices divide the S&P 500 parent universe using S&P Dow Jones Indices' rules-based style methodology. The key detail is that the standard series is not mutually exclusive: a security can be fully allocated to one style or partially allocated to both. Growth and Value should therefore be modeled as dated allocations, not permanent company labels.
The S&P 500 Growth and S&P 500 Value indices divide the S&P 500 parent universe using S&P Dow Jones Indices' rules-based style methodology. The key detail is that the standard series is not mutually exclusive: a security can be fully allocated to one style or partially allocated to both. Growth and Value should therefore be modeled as dated allocations, not permanent company labels.
S&P 500 Growth uses sales growth, the ratio of earnings change to price, and momentum. S&P 500 Value uses book value, earnings and sales relative to price. These classifications are descriptive index exposures: not recommendations, forecasts, or conclusions about intrinsic value.
Growth versus Value
| Feature | Growth | Value |
|---|---|---|
| Parent | S&P 500 | S&P 500 |
| Factors | Sales growth; earnings change/price; momentum | Book value/price; earnings/price; sales/price |
| Overlap allowed in standard series | Yes | Yes |
| Current membership | Dated official data | Dated official data |
| Investment recommendation | No | No |
Why overlap matters
A middle-spectrum security can contribute some float-adjusted capitalization to each style. Swoopr should therefore maintain one canonical company dossier and separate security-level style records. Duplicating company prose beneath two index trees creates conflicting facts, duplicate content and unnecessary maintenance.
User experience
The family hub should expose current counts, complete directories, search by company/ticker/alias, Growth-only, Value-only and overlap filters, sector and industry filters, style weights, effective dates and change history. Every current table must show an as-of date.
Interpretation
Style is a portfolio-exposure lens. Fundamental company research still requires revenue drivers, unit economics, margins, returns on capital, balance-sheet quality, cyclicality, competition and capital allocation.
References
- https://www.spglobal.com/spdji/en/indices/equity/sp-500-growth/
- https://www.spglobal.com/spdji/en/indices/equity/sp-500-value/
- https://www.spglobal.com/spdji/en/methodology/article/sp-us-style-indices-methodology/