India’s stock market regulator over the weekend said it devote extra attention to surveillance after the sell-off in Adani Group corporations that has swelled to greater than $100 billion in market cap losses.

The Securities and Exchange Board of India, or SEBI, issued an announcement to reassure the markets that it has addressed the stock volatility from corporations linked to Indian conglomerate the Adani Group, with a set of recent surveillance measures.

In an announcement posted on Saturday, SEBI said in light of “unusual price movement within the stocks of a business conglomerate”, it could place publicly available surveillance measures to handle excessive volatility in certain stocks.

“SEBI is committed to making sure market integrity and to making sure that the markets proceed to have the suitable structural strength to operate in an uninterrupted, transparent and efficient manner as has been the case thus far,” the regulator added.

That follows the move on Friday by the National Exchange of India and Mumbai Stock Exchange to place three Adani-linked corporations under a brief term additional surveillance measure (ASM) framework – Adani Enterprises
512599,
-0.74%,
Adani Ports and Special Economic Zone
532921,
+9.46%
and Ambuja Cements
500425,
+1.54%.

“The shortlisting of securities under ASM is solely on account of market surveillance and it shouldn’t be construed as an adversarial motion against the concerned company/entity,” said the National Exchange of India in an announcement on Thursday. It added that trading on the above stocks may require 100% upfront margin, effective from Monday.

Shares in Adani’s flagship firm Adani Enterprises slipped 1% on Monday.

Adani stocks have seen extraordinary volatility within the last week since U.S. short seller Hindenburg Research published a report alleging fraud and stock manipulation. The Adani Group’s losses have ballooned to $113 billion because the report.

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