OMG! I researched on this and it turns out that the instos...

OMG! I researched on this and it turns out that the instos deliberately want to have a sharp drop so they can sell their shares at a big loss to harvest a loss to offset capital gain tax on other shares and then they buy back the shares (slowly). So this is a way to doge the wash-sale rule where they cannot buy back the shares immediately after making a sale to claim a loss for tax purpose. It is now close to the end of the FY so this is their dirty action for tax purposes.

So, the instos deliberately engineered the big drop today after the shorts already created havoc on the share price for a whole month. I guess the wash-sale rule will stop them from buying again until the right after the financial year end. This means the share price would rise in July.