Sono Group is trading 8.03% up at $1.48 after hours; no fresh company-specific explanation was identified.
- It closed at $1.37 October 7, after falling 39.66% October 5 and 11.95% October 6, followed by a 2.14% Wednesday regular-session decline.
- The latest major news found was an August 31 letter of intent with Sports One; it predates the move and does not establish its cause.
- Major indices were modestly lower October 7, so broad-market weakness does not clearly explain the rise.