Actually I am a bit curious, I am sure other will well aware of this too.
Today we few stocks that have a big drop
1) CBIP close to 30% drop
2) HSPLANT close to 30% drop
3) TDM close to 30 % drop
4) BKAWAN close to 30% drop
5) BJTOTO close to 24% drop
6) Coastal close to 30% drop
There are 2 stocks increase a lot
1) JCY increase close to 36%
2) STAR increase close to 30%
But index seems only drop 0.37%.

Probably the stocks I mention above is not big in market cap beside BKAWAN?
Our so called composite index is formed by 30 counters.
The above counters none are index linked. (I think bkawan is not, KLK yes)
Try to limit down index-linked counters like Petdag, Petgas, Maybank etc, we will see negative double digit easily.