US stocks ended the week with heightened volatility as investors grappled with shifting Federal Reserve expectations, persistent inflation concerns, and uneven economic signals. Major indexes including the Dow Jones Industrial Average, S&P 500, and Nasdaq Composite moved lower after an initially steady start, as stronger-than-expected inflation readings and hawkish Fed commentary reinforced fears that interest rates may remain elevated longer than previously expected.

Technology stocks, which had been the primary driver of gains earlier in the year, came under renewed pressure as rising Treasury yields weighed on valuations and prompted a rotation out of high-growth sectors. Semiconductor and software names saw the most pronounced swings, contributing to broader market softness as investors questioned whether AI-driven earnings momentum could continue to offset tighter financial conditions.

Bond markets played a key role in shaping sentiment, with yields trending higher as expectations for near-term rate cuts faded and the possibility of additional Fed tightening came back into focus. Despite pockets of resilience in select industrial and consumer names, the overall tone remained cautious, with investors increasingly focused on incoming inflation data and central bank guidance.

Notable Stock Movements

Amid the broader market decline, several individual stocks experienced significant volatility based on company-specific news and sector trends.

Sector Highlights

The rare earth and critical minerals sector saw increased activity following the US Department of Defense's announcement of a $725 million conditional loan commitment to Energy Fuels Inc. This move is part of a broader effort to reduce US dependence on Chinese supply chains. Other companies highlighted in this context include MP Materials Corp., USA Rare Earth Inc., Critical Metals Corp., Perpetua Resources Corp., and Lithium Americas Corp.

Conversely, the space sector faced a sharp selloff after a short report from Fugazi Research argued that many publicly traded space companies are fundamentally overvalued. The report targeted AST SpaceMobile Inc., Redwire Corp., Momentus Inc., Virgin Galactic Holdings Inc., and Sidus Space Inc., describing the sector as "sci-fi wishes rather than investable commercial opportunities." The report also noted that the investment case for many space stocks weakened following the SpaceX IPO.

International Business Machines Corp. shares also declined as part of a broader sell-off in software and IT services stocks. Investors rotated out of the sector amid renewed concerns about higher interest rates and worries that AI-driven disruption could pressure traditional consulting and legacy software revenue streams.