Qualcomm is trading at ARS 27,620, down 7.32%, amid semiconductor-sector weakness, the clearest explanation in available context. - Reporting linked chip-sector pressure to OpenAI pausing training of its most capable AI models, renewing concerns about AI demand. - The Philadelphia Semiconductor Index finished nearly 2% lower on September 28; SOXX fell 2.62% during the regular session. - Available broad-index figures were only modestly negative, and no company-specific announcement was confirmed.