Linkhome Holdings is trading 5.9% up at $0.90 in after-hours trading; its specific catalyst remains unclear. - It closed the October 16 regular session at $0.85. - The GPU Marketplace 2.0 launch was announced October 1, not October 16. - Reuters reported sharply weaker broader markets amid technology-led selling over concerns about AI infrastructure debt and higher interest rates; this context does not establish why Linkhome rose after hours.