Micron Technology has achieved record highs, trading above $444, as investors respond positively to strong performances and guidance from peers like Texas Instruments and SK Hynix. Texas Instruments reported an earnings per share of $1.27, despite a year-over-year decline, but forecasted robust future revenue, enhancing sentiment in the semiconductor sector. Additionally, market confidence is bolstered by recent upgrades for several tech firms, underscoring a generally optimistic outlook.