Sirrus Corp. (SRUP: Grey Market) | Tier Change Sat, Jul 11, 2020 12:00 - Sirrus Corp. ( SRUP : Grey Market) - Tier Change - The symbol, SRUP, no longer is classified as Pink No Information. As of Sat, Jul 11, 2020, SRUP resides in the Grey Market tier. You may find a complete list of tier changes at otcmarkets.com .