India’s Securities and Exchange Board (SEBI) has issued an interim order barring U.S. proprietary trading firm Jane Street Group and four related entities from accessing the domestic securities market. The regulator said its probe found that the firm manipulated benchmark indices through large, coordinated positions in cash equities, futures and options, and ordered exchanges to prevent the group from taking any new trades until it completes further investigations.
SEBI’s 105-page order alleges that Jane Street artificially lifted prices of Bank Nifty and, on some occasions, Nifty 50 constituents on expiry days, then reversed those trades to profit from sizeable short options positions. The scheme, pursued across 18 trading sessions between January 2023 and May 2025, allegedly generated about ₹43,289 crore in options profits while offsetting losses in cash and futures markets, leaving net gains of roughly ₹36,500 crore ($4.3 billion).
To secure what it calls “unlawful gains,” the watchdog impounded ₹4,843 crore (about $567 million) and directed banks to freeze all Jane Street–linked accounts and place the money in an escrow facility. The firm has 21 days to respond or seek relief from the Securities Appellate Tribunal, and will be allowed to unwind existing Indian positions only under exchange supervision and in a phased, non-disruptive manner.
Jane Street said it “disputes the findings of the SEBI interim order and will further engage with the regulator,” stressing its commitment to compliance. The crackdown—described by SEBI as its most stringent action against a foreign trading house—sent shares of several brokerage and exchange operators lower, with Nuvama Wealth sliding 11 percent. The case comes as global high-frequency traders expand in what is now the world’s busiest equity-derivatives market, prompting New Delhi to tighten oversight of complex trading strategies.
🚨 One question you might be asking.....Why did SEBI ban Jane Street from Indian markets?
Alleged expiry-day BANKNIFTY manipulation 💥
👉 ₹4,843 Cr in “ill-gotten gains”
👉 ₹735 Cr profit on one day
👉 Options market 353x bigger than cash
@ankurmishrasays EXPOSES the expiry
India’s financial regulator has banned Jane Street from the country for a “sinister scheme” of manipulation that allegedly netted the trading firm hundreds of millions of dollars.
We’ve started digging into its 105 page investigation here —>
#WATCH | Mumbai | BCB Brokerage Private Limited MD Uttam Bagri says, "As per the order, SEBI has raised two main allegations. First, market manipulation, Jane Street allegedly took long positions in the cash segment while simultaneously building larger short positions in the
Sebi's message is clear
"Play fair or don't play"
But the larger question
Is this about stopping manipulation or fixing a fragile market structure that sophisticated players can exploit?
Very good thread on Sebi vs Jane Street ⏬⏬
📢#SEBI's message is loud and clear—but
India’s market watchdog SEBI has temporarily barred US trading firm Jane Street from accessing the local securities market over allegations of manipulative trades.
@haslindatv speaks to @VishnoiSays on what this means for India’s markets and exchanges:
India’s financial regulator has banned Jane Street from the country for a “sinister scheme” of manipulation that allegedly netted the trading firm hundreds of millions of dollars.
We’ve started digging into its 105 page investigation here —>
Jane Street Group Banned: According to SEBI, Jane Street systematically influenced the prices of Bank Nifty and Nifty 50 index constituents
#JaneStreet #SEBI #investments