SMH3.L is trading at $18.71 (+3.53%), with no verified catalyst specifically explaining the rise. - On September 28, chip shares broadly fell as rising bond yields and heightened AI-safety concerns weighed on the sector. The PHLX Semiconductor Index dropped roughly 2%. - Several major chipmakers were lower, though Nvidia bucked the trend; these factors explain recent sector volatility, not conclusively SMH3.Lā€™s positive move.