Why did BSE Ltd share price tank 67%? Stock fell to ₹2,335 from ₹6,996

BSE Ltd share price plummeted 67 per cent in trade on ex-bonus date. BSE bonus share issue ratio was 2:1

Why did BSE Ltd share price tank 67%? Stock fell to ₹2,335 from ₹6,996
BSE Ltd share price plummeted 67 per cent in trade on ex-bonus date. BSE bonus share issue ratio was 2:1