Smith Micro Software is trading at $2.85, up 5.17%, with no direct catalyst confirmed. - It compares with the September 25 close of $2.71; no September 28 company announcement was identified. - Latest notable news: founder Bill Smith was appointed president and CEO on September 18, after a September 10 expanded multi-year agreement with a major U.S. mobile operator. Both predate the alert and are unconfirmed catalysts. - Broader futures are lower and do not explain the rise.