From Halopedia, the Halo wiki
The Surakan Stock Exchange is a stock exchange located at the Wulandari Building in Suraka on Carrow. An old brass ship's bell, flown through slipstream space from Luna, is mounted in the Exchange's ceremonial balcony. In August 2558, the Surakan Stock Exchange was shut down due to rising conflicts across Carrow. By September 1, 2558, the Exchange was still shut down as a full-on civil war broke out across the planet.