$PI 见鬼直线下跌

(This appears to be Chinese slang/colloquial expression rather than standard financial terminology. A literal translation would be " чёрт, прямое падение" or " ну и падение", but since this is informal Chinese slang that doesn't have a precise financial equivalent, the original text is preserved as requested for unclear/non-standard content.)

If you need a more standard translation, please provide context or clarify the intended meaning.