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Argentina’s construction equity index tracks construction-related listed companies; it does not measure the cost of building. For a sector-versus-market comparison, set the S&P/BYMA Argentina General Construction Index beside either the S&P MERVAL or the broader S&P/BYMA Argentina General, using matched dates, return types and currencies. For residential building-cost changes in Greater Buenos Aires, use INDEC’s separate ICC-GBA.
What is Argentina’s construction index?
In an equity-market comparison, “Argentina’s construction index” most likely means the S&P/BYMA Argentina General Construction Index, which BYMA also calls S&P/BYMA Construcción. It tracks qualifying construction-related shares within the S&P/BYMA Argentina General. Its eligible GICS sub-industries include Construction Materials, Forest Products, Building Products, Construction & Engineering, and Homebuilding.
The index is float-adjusted market-capitalization weighted. Its factsheet provides distinct price-return and total-return variants, so identify which one you use rather than treating them as interchangeable. The calculation currency shown in the factsheet is ARS.
This is an index of equities, not an index of materials prices, wages, or the cost of building a home. The Construction Index launched on 7 October 2019; its first value date is 11 January 2019. Because the first value predates launch, that date alone does not establish a live track record. S&P DJI cautions that performance before an index launch is hypothetical back-tested performance and actual returns may differ significantly (S&P DJI methodology and disclosures).
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How does the construction index compare with the Merval and Argentina General?
These benchmarks answer different equity-market questions: the Construction Index isolates a sector, the Merval focuses on larger and more liquid domestic stocks, and Argentina General covers a wider set of eligible domestic shares.
| Benchmark | What it measures | Eligibility and weighting | Best use |
|---|---|---|---|
| S&P/BYMA Argentina General Construction | Construction-related equities within Argentina General | Qualifying constituents in specified construction-related GICS sub-industries; float-adjusted market-cap weighted | Sector-versus-market performance |
| S&P MERVAL | Argentina’s flagship equity benchmark, focused on the largest, most liquid BYMA-traded domestic stocks | Subject to minimum size and liquidity conditions; float-adjusted market-cap weighted, with a 15% individual-stock cap | Comparing a construction-sector result with a large, liquid domestic-stock benchmark |
| S&P/BYMA Argentina General | A broader benchmark of domestic shares listed on BYMA | Domestic stocks that traded on at least 20% of trading days in the previous 12 months; float-adjusted market-cap weighted | Comparing a sector result with a wider local-share universe |
The eligibility and methodology descriptions are from S&P DJI’s S&P MERVAL page and S&P/BYMA Indices Methodology; BYMA describes Argentina General as measuring eligible local shares listed on the Buenos Aires exchange.
Constituent concentration matters
A sector index can be much narrower than either market benchmark, so one large constituent may dominate its movement. In an S&P DJI snapshot dated around 31 August/14 September 2026, the Construction Index had six constituents and a largest-constituent weight of 82.5%. Those are snapshot-specific characteristics, not permanent index rules; check the current factsheet before relying on them.
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No. The relevant official cost measure is INDEC’s Índice del costo de la construcción en el Gran Buenos Aires (ICC-GBA). It tracks private residential building costs in the City of Buenos Aires and 24 surrounding partidos, covering materials, labor, and general expenses. Its geography is Greater Buenos Aires, not all of Argentina (INDEC scope description).
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INDEC’s release dated 16 September 2026 reported that the ICC-GBA overall level rose 2.5% month over month in August 2026. Within that one-month reading, materials rose 1.7%, labor 3.2%, and general expenses 2.2% (INDEC, 2026; ICC-GBA releases). These are monthly cost-index changes, not stock returns or a full-year change.
Use ICC-GBA to discuss changes in the defined residential construction-cost basket. Use the Construction Index to discuss listed construction-related shares. A direct numerical comparison between the two needs explicit explanation of their different subject, geography, period, currency, and units.
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How to make a fair index comparison
- Choose the question. For sector-versus-market performance, compare the Construction Index with Merval or Argentina General. For building-cost changes, consult ICC-GBA instead.
- Align the dates. Use the same start and end dates for each equity series, and label the horizon—for example, one month, year to date, or one year. Record each factsheet’s “as of” date because return snapshots change.
- Match return variants. Compare price return with price return, or total return with total return. The Construction Index lists both variants; do not mix them without saying so.
- State currency and geography. The Construction Index factsheet gives ARS as its calculation currency. ICC-GBA is explicitly a Greater Buenos Aires measure; do not describe it as nationally representative.
- Check coverage and concentration. Note the constituent universe, eligibility rules, weighting method, and whether a small number of stocks account for much of the sector index.
- Separate live history from back-tests. If a performance series includes dates before an index’s launch, disclose that the earlier data are hypothetical back-tested results, not realized live index history.
Which benchmark should you use?
- Use the Construction Index to frame the performance of qualifying construction-related shares.
- Use the Merval when the intended comparison is with Argentina’s larger, more liquid domestic equities.
- Use Argentina General when a broader domestic-share reference is more appropriate than a large-stock benchmark.
- Use ICC-GBA when the question concerns residential construction costs in Greater Buenos Aires rather than share prices.
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