Stealth Technologies, Inc. (STTH: Pink Current) | Tier Change Sat, Nov 16, 2019 12:00 - Stealth Technologies, Inc. ( STTH : Pink Current) - Tier Change - The symbol, STTH, no longer is classified as Pink No Information. As of Sat, Nov 16, 2019, STTH resides in the Pink Current tier. You may find a complete list of tier changes at otcmarkets.com .