Identifies an event related to the mass trading status.
| Code | Meaning |
|---|---|
| 1 | Order imbalance, auction is extended |
| 2 | Trading resumes (after Halt) |
| 3 | Price Volatility Interruption |
| 4 | Change of Trading Session |
| 5 | Change of Trading Subsession |
| 6 | Change of Security Trading Status |
| 7 | Change of Book Type |
| 8 | Change of Market Depth |
| 9 | Corporate action |