Spot silver slipped below $50/oz, down 4.14% intraday.

A-share brain–computer interface sector spiked in the afternoon session. Baiyang Pharmaceutical and Meihao Medical rose over 10%. Aoyang Health had earlier logged three consecutive daily limit-ups. Boji Pharmaceutical, Aipeng Medical, Chuangxin Medical and Xiangyu Medical also rallied.

Spot gold fell 3.08% to $3,897.48/oz, spot silver dropped 5.90% to $49.09/oz and platinum declined 4.22% to $1,425.20/oz on Oct. 30. The Federal Reserve held rates at 3.75%-4.00% in a 10-2 vote but two officials advocated an immediate hike; US Q3 GDP came in at 3.4% and PCE inflation at 3.6%, bolstering market bets on a December rate increase. The metals rout did not follow a stronger USD or higher Treasury yields — both the dollar and UST yields retraced — and occurred after a tech-led equity selloff drove flows into bonds, suggesting the falls may reflect liquidity-driven liquidation of highly liquid precious-metal positions. The gold/silver ratio rose to 79.4, underscoring silver’s larger decline versus gold.