The Tokyo Stock Exchange, Inc. has decided to change Circuit Breaker rule on index futures as follows;
1.Change of Circuit Breaker Rule
New fluctuation range will be added on the criteria of Circuit Breaker and the criteria to compare the market price with theoretical price will be abolished. The period of Level 2 trading halt is as long as that of Level 1, 15 minutes.
| Base Price | Level 1 (About 50% of Price Limit) |
Level 2 (About 75% of Price Limit) |
|---|---|---|
| Less than 750pts. | 50pts. | 75pts. |
| 750pts.or more, but less
than 1,000pts (This range was newly set on November5,2008) |
75pts. | 110pts. |
| 1,000pts.or more, but less than 1,250pts. | 100pts. | 150pts. |
| 1,250pts.or more,but less than 1,750pts. | 150pts. | 225pts. |
| 1,750pts.or more,but less than 2,250pts. | 200pts. | 300pts. |
| 2,250pts.or more,but less than 2,750pts. | 250pts. | 375pts. |
| 2,750pts.or more,but less than 3,250pts. | 300pts. | 450pts. |
| 3,250pts.or more,but less than 3,750pts. | 350pts. | 525pts. |
| 3,750pts.or more | 400pts. | 600pts. |
This change will go into effect from the morning session on December 15, 2008.
