What is the Impact of Merger and Demerger, and How To Track It in FYERS?
When a company undergoes a merger or demerger, your holdings in the Demat account are adjusted automatically. A merger replaces old shares with the merged entity’s shares as per the announced swap ratio; a demerger may credit shares of the resulting company. Your overall exposure remains aligned with the corporate action; what changes are the share quantities and the buy average shown in your portfolio.
Impact of a merger
- Share swap: Old-company shares are removed and replaced with the merged company’s shares as per the swap ratio (e.g., 2:1).
- Quantity change: Old quantity goes to zero; new quantity is credited.
- Buy average: Adjusts automatically to reflect the swap.
Impact of a demerger
- Original shares remain: You continue to hold shares of the parent company.
- Resulting-company shares: Additional shares of the new company are credited.
- Temporary ISIN first: Resulting-company shares are first credited under a temporary ISIN within a few days, typically within 45 working days from the record date.
- Prices/averages after listing: The correct buy average and price for the new company update only after listing on the secondary market. Once listed, the shares reflect under the permanent ISIN with accurate prices/averages.
- Email notification: You will see the shares credited in Demat and receive an email notification before the 45-working-day window is over; please wait until 45 working days elapse or until listing, whichever is earlier.
Steps to track merger/demerger in FYERS
On FYERS App
- Log in to the FYERS App.
- Go to Menu (☰) → Reports → Corporate Actions → Merger or Demerger.
- Review the list for Name, Merged/Resulting symbol, Record date, Ratio, Holding qty (before/after), and New buy avg (for demergers, accurate averages for the new company appear after listing).
On FYERS Web
- Log in to FYERS Web.
- Click Menu (9-dot grid, top-right) → Reports → Corporate Actions → Merger or Demerger.
- Check the grid for Name, Merged/Resulting symbol, Record date, Merger/Demerger ratio, Holding qty (before/after), and New buy avg (final averages for demerged entities update post listing).
In demergers, shares may first appear under a temporary ISIN—wait until listing or up to 45 working days for the permanent ISIN and accurate prices, and watch for our email notification.
What if…
| Situation | Solution |
|---|
| My old shares disappeared | In a merger, old shares are swapped. Check Corporate Actions → Merger for the new symbol, ratio, and Holding qty after. |
| I got fewer or more shares than before | This reflects the announced ratio. Compare Holding qty (before/after) and the Ratio column. |
| I don’t see new company shares or correct prices | In demergers, shares may first appear under a temporary ISIN and prices/buy average finalise after listing (and then reflect under the permanent ISIN). |
| It’s been a while and I still don’t see the new shares | Credits can take up to 45 working days. You should receive an email notification and see Demat credits before this window ends; if 45 working days have passed, contact us. |
Last updated: 13 Nov 2025
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