BMV: Altimmune sinks 49%; AgileThought Soars 33%

Extremely volatile day on the Mexican stock market. Biopharmaceutical company Altimmune plummets nearly 50% following clinical results. Learn about the biggest rises and falls.

The Mexican Stock Exchange (BMV) experienced a day of extreme volatility on June 27, marked by a dramatic drop of nearly 50% in the shares of biopharmaceutical company Altimmune, while the technology firm AgileThought soared more than 33%, reflecting the market's sensitivity to specific corporate news.

The market's main index, the S&P/BMV IPC, navigated amid uncertainty, where the movements of individual companies dictated the pace. The day highlighted how clinical results, legal investigations, and strategic decisions can generate multimillion-dollar gains or losses for investors in a matter of hours.

The most notable case of the day was Altimmune, Inc. (ALT), whose shares plummeted 49.62% on the stock market. The drop, paradoxically, occurred after the company announced "positive" results from its Phase 2b clinical trial for the drug Pemvidutide, intended for the treatment of metabolically associated steatohepatitis (MASH), a liver disease.

Why the drop? Although the company stated that the study met its primary endpoint of resolving MASH, the data on the improvement in fibrosis (liver scarring), a key point for investors, were not as conclusive as expected. The market reacted pessimistically to the possibility that the drug might not be sufficiently competitive against other options in development.

Almost immediately, the law firm Holzer & Holzer announced the launch of an investigation into whether Altimmune complied with federal securities laws in its investor communications, adding further pressure to the stock.

In addition to the extreme moves by Altimmune and AgileThought, other companies stood out for their performance in the most recent session on the BMV.

Top winners:

• AgileThought (AGIL): +33.33%
• Nike (NKE): +15.63% (Boosted by quarterly results that beat expectations)
• Royal Caribbean Cruises (RCL): +10.36%
• Mexican Restaurants (CMR B): +9.33%
• Vale ADR (VALE): +6.91%

Top losers:

• Altimmune (ALT): -49.62%
• Luminar Technologies (LAZR): -30.67%
• Quantumscape (QS): -14.46%
• Invex Bank (INVEX A): -10.49%
• Palantir Technologies (PLTR): -8.77%

Data based on the percentage change for the day on June 27.

The S&P/BMV IPC remains below its annual high of 58,735.86 points, but significantly above its low of 48,957.24 points, indicating a market in a consolidation phase and high sensitivity to both macroeconomic and corporate news.

Significant events such as Terrafina's intention to remove CIBanco as a trustee and Toyota's dividend payment also generated movements in the capital markets. The day underscores the importance for investors of closely monitoring not only general economic indicators but also the specific details that can boost or sink a company's value in a single day.