Loma Negra Compania Industrial Argentina Sociedad Anonima ADS (LOMA)
LOMA moved a median of +0.16% 30 minutes after news, and 0.00% by the close. How LOMA actually reacts to news — the realized, point-in-time move the market made, measured across 129 labeled events over the last three years with zero look-ahead.
LOMA’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 51% | 127 |
| 30-min | +0.16% | 55% | 129 |
| 60-min | -0.01% | 47% | 129 |
| to close | 0.00% | 50% | 129 |
| Middle 50% of LOMA reactions | -0.76% to +0.93% |
|---|---|
| Median reaction (30-min) | +0.16% |
| Measured reactions | 129 |
Half of all Loma Negra Compania Industrial Argentina Sociedad Anonima ADS news events land between -0.76% and +0.93% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when LOMA moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to LOMA's baseline. Nothing else.
Recent LOMA events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 6-K Loma Negra Compania Indu For: Jun 30 | SEC filing · Form 6-K | SEC EDGAR | +0.73% | +0.42% | |
| Form SD Loma Negra Compania Indu | SEC filing · Form SD | SEC EDGAR | -0.12% | -0.01% | |
| Form 6-K Loma Negra Compania Indu For: Aug 12 | SEC filing · Form 6-K | SEC EDGAR | +0.61% | -1.63% | |
| Form 6-K Loma Negra Compania Indu For: Jun 30 | SEC filing · Form 6-K | SEC EDGAR | -1.45% | -5.35% | |
| Loma Negra Reports 2Q26 results | Press release | PR Newswire | -1.45% | -5.35% | |
| Form 6-K Loma Negra Compania Indu For: Mar 31 | SEC filing · Form 6-K | SEC EDGAR | -0.09% | +0.36% | |
| Form 6-K Loma Negra Compania Indu For: Mar 31 | SEC filing · Form 6-K | SEC EDGAR | -2.29% | -0.68% | |
| Form 6-K Loma Negra Compania Indu For: Mar 31 | SEC filing · Form 6-K | SEC EDGAR | -1.73% | +2.73% | |
| Loma Negra 1Q26 | Press release | ACCESS Newswire | -1.73% | +2.73% | |
| Form 20-F Loma Negra Compania Indu For: Dec 31 | SEC filing · Form 20-F | SEC EDGAR | -0.99% | -1.81% | |
| Form 6-K Loma Negra Compania Indu For: Apr 28 | SEC filing · Form 6-K | SEC EDGAR | -0.99% | -1.81% | |
| Loma Negra Files Its Annual Report on Form 20-F | Press release | ACCESS Newswire | -0.99% | -1.81% | |
| Form 6-K Loma Negra Compania Indu For: Apr 24 | SEC filing · Form 6-K | SEC EDGAR | -0.85% | -0.45% | |
| Form 6-K Loma Negra Compania Indu For: Apr 06 | SEC filing · Form 6-K | SEC EDGAR | +0.00% | +3.90% | |
| Form 6-K Loma Negra Compania Indu For: Mar 31 | SEC filing · Form 6-K | SEC EDGAR | -1.43% | -1.25% | |
| Form 6-K Loma Negra Compania Indu For: Mar 23 | SEC filing · Form 6-K | SEC EDGAR | -0.33% | +2.24% | |
| Form 6-K Loma Negra Compania Indu For: Dec 31 | SEC filing · Form 6-K | SEC EDGAR | +0.10% | -0.30% | |
| Form 6-K Loma Negra Compania Indu For: Dec 31 | SEC filing · Form 6-K | SEC EDGAR | +0.81% | -0.51% | |
| Form 6-K Loma Negra Compania Indu For: Mar 05 | SEC filing · Form 6-K | SEC EDGAR | +0.81% | -0.51% | |
| LOMA NEGRA 4Q25 | Press release | ACCESS Newswire | +0.81% | -0.51% | |
| Form 6-K Loma Negra Compania Indu For: Feb 12 | SEC filing · Form 6-K | SEC EDGAR | +0.52% | +0.17% | |
| Form 6-K Loma Negra Compania Indu For: Jan 20 | SEC filing · Form 6-K | SEC EDGAR | +0.04% | +4.11% | |
| Form 6-K Loma Negra Compania Indu For: Dec 10 | SEC filing · Form 6-K | SEC EDGAR | +1.04% | +2.24% | |
| Form 6-K Loma Negra Compania Indu For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | -0.17% | -2.67% | |
| Form 6-K Loma Negra Compania Indu For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +0.19% | +1.98% | |
| Form 6-K Loma Negra Compania Indu For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | -0.14% | +2.66% | |
| Loma Negra Reports 3Q25 results | Press release | ACCESS Newswire | -0.14% | +2.66% | |
| Form 6-K Loma Negra Compania Indu For: Oct 06 | SEC filing · Form 6-K | SEC EDGAR | -0.71% | -3.51% | |
| Form SD Loma Negra Compania Indu | SEC filing · Form SD | SEC EDGAR | — | +1.50% | |
| Form 6-K Loma Negra Compania Indu For: Jun 30 | SEC filing · Form 6-K | SEC EDGAR | +0.45% | +0.79% | |
| Form 6-K Loma Negra Compania Indu For: Aug 13 | SEC filing · Form 6-K | SEC EDGAR | -0.18% | -0.28% | |
| Form 6-K Loma Negra Compania Indu For: Aug 08 | SEC filing · Form 6-K | SEC EDGAR | +0.25% | +0.71% | |
| Form 6-K Loma Negra Compania Indu For: Jun 30 | SEC filing · Form 6-K | SEC EDGAR | +0.00% | -3.32% | |
| LOMA 2Q25 Earnings Results | Press release | ACCESS Newswire | +0.00% | -3.32% | |
| Form 6-K Loma Negra Compania Indu For: Jul 24 | SEC filing · Form 6-K | SEC EDGAR | -1.15% | -0.68% | |
| Form 6-K Loma Negra Compania Indu For: Jul 22 | SEC filing · Form 6-K | SEC EDGAR | +0.00% | +5.22% | |
| Form 6-K Loma Negra Compania Indu For: Mar 31 | SEC filing · Form 6-K | SEC EDGAR | +0.07% | +2.62% | |
| Form 6-K Loma Negra Compania Indu For: May 08 | SEC filing · Form 6-K | SEC EDGAR | +0.45% | +0.45% | |
| Form 6-K Loma Negra Compania Indu For: Mar 31 | SEC filing · Form 6-K | SEC EDGAR | -3.09% | -3.39% | |
| LOMA NEGRA 1Q25 Earning Release | Press release | ACCESS Newswire | -3.09% | -3.39% | |
| Form 20-F Loma Negra Compania Indu For: Dec 31 | SEC filing · Form 20-F | SEC EDGAR | +0.09% | +0.70% | |
| Form 6-K Loma Negra Compania Indu For: Dec 31 | SEC filing · Form 6-K | SEC EDGAR | -0.44% | -0.62% | |
| Loma Negra Files its Annual Report on Form 20-F | Press release | ACCESS Newswire | -0.44% | -0.62% | |
| Form 6-K Loma Negra Compania Indu For: Apr 24 | SEC filing · Form 6-K | SEC EDGAR | +1.38% | +2.42% | |
| Form 6-K Loma Negra Compania Indu For: Apr 03 | SEC filing · Form 6-K | SEC EDGAR | +1.01% | -0.51% | |
| Form 6-K Loma Negra Compania Indu For: Mar 25 | SEC filing · Form 6-K | SEC EDGAR | +0.09% | -3.42% | |
| Form 6-K Loma Negra Compania Indu For: Dec 31 | SEC filing · Form 6-K | SEC EDGAR | — | +1.11% | |
| Form 6-K Loma Negra Compania Indu For: Dec 31 | SEC filing · Form 6-K | SEC EDGAR | +0.85% | +3.32% | |
| Form 6-K Loma Negra Compania Indu For: Mar 06 | SEC filing · Form 6-K | SEC EDGAR | +0.85% | +3.32% | |
| Loma Negra Reports 4Q24 Results | Press release | ACCESS Newswire | +0.85% | +3.32% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the LOMA section they belong to.
Where else LOMA is measured.
LOMA earnings → · Analyst actions → · SEC filings →
Other Basic Materials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Ternium S.A. Ternium S.A. American Depositary Shares (each representing ten shares, USD1.00 par value) (TX) | 130 | -0.03% | 48% |
| CONTINENTAL GOLD LTD (CNL_TSE) | 129 | +0.91% | 80% |
| Americas Gold and Silver Corporation Common Shares, no par value (USAS) | 129 | -0.56% | 40% |
| Allegiant Gold Ltd (AUAU_CDNX) | 128 | 0.00% | 32% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Basic Materials names, measured the same way →
Every ticker we measure the same way24
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Microsoft (MSFT)
How MSFT actually reacts to news, measured.
Advanced Micro Devices (AMD)
How AMD actually reacts to news, measured.
Amazon (AMZN)
How AMZN actually reacts to news, measured.
Alphabet (GOOG)
How GOOG actually reacts to news, measured.
Meta Platforms (META)
How META actually reacts to news, measured.
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How AVGO actually reacts to news, measured.
JPMorgan Chase (JPM)
How JPM actually reacts to news, measured.
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How V actually reacts to news, measured.
Walmart (WMT)
How WMT actually reacts to news, measured.
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How LLY actually reacts to news, measured.
UnitedHealth Group (UNH)
How UNH actually reacts to news, measured.
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Johnson & Johnson (JNJ)
How JNJ actually reacts to news, measured.
Exxon Mobil (XOM)
How XOM actually reacts to news, measured.
Home Depot (HD)
How HD actually reacts to news, measured.
Costco (COST)
How COST actually reacts to news, measured.
Mastercard (MA)
How MA actually reacts to news, measured.
Oracle (ORCL)
How ORCL actually reacts to news, measured.
Salesforce (CRM)
How CRM actually reacts to news, measured.
Bank of America (BAC)
How BAC actually reacts to news, measured.
Coca-Cola (KO)
How KO actually reacts to news, measured.
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How DIS actually reacts to news, measured.
Browse all tickers
Every name we’ve measured, in one place.
How the numbers are made.
How is Loma Negra Compania Industrial Argentina Sociedad Anonima ADS's median reaction calculated?
Every labeled LOMA news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 129 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 55% of LOMA's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does LOMA's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.