Concord Biotech shares are showing a fall of nearly 50% on some trading apps on November 4, 2026. This is not a crash. It is a technical adjustment for the company’s 1:1 bonus issue.

The board fixed November 4, 2026 as the record date for the bonus issue, and the stock turned ex-bonus on the same day . On the record date, the share price is theoretically halved because the number of shares doubles, while the company’s total market value remains the same.

According to Aaj Tak, the stock settled at ₹1,229.90 on Tuesday and opened at ₹610 on Wednesday after the bonus adjustment. Some brokerage apps were still showing the previous day’s unadjusted price, making it look like a 50–52% crash .

Why Some Investors Are Panicking

This is a display issue, not a wealth issue. If you held 100 shares before, you will now hold 200 shares (bonus shares are expected to be credited by November 5), and your total investment value remains unchanged.

Business Today confirmed that the “50% fall” appearing on some trading apps is because the shares turned ex-bonus, adjusting to the pre-announced corporate action .

Who Is Eligible

• Record Date: November 4, 2026

• Ex-Bonus Date: November 4, 2026 (shares bought on or after this date will not receive bonus)

• Last Date to Buy: November 3 (Tuesday)

• Bonus Share Credit: Expected November 5, 2026

What You Should Do

If you already hold the shares, do nothing. Bonus shares will be automatically credited to your demat account. If you wanted to participate, the buying window closed on November 3.

Do not panic over the “50% fall” screenshot. Check your portfolio’s total value and the number of shares you hold, not just the per-share price.

FAQ

Q1: Why is Concord Biotech showing a 50% fall?
It is a technical adjustment for the 1:1 bonus issue, not a real decline. The number of shares doubles, so the per-share price is theoretically halved. Your total wealth remains the same .

Q2: When will bonus shares be credited?
Bonus shares are expected to be credited by November 5, 2026.

Q3: Will shares bought on November 4 receive bonus?
No. November 4 is the ex-bonus date. The last date to buy and be eligible was November 3 .

Q4: Is there tax on bonus shares?
The cost of acquisition for bonus shares is zero. Capital gains tax will apply when you sell them.