MUMBAI, 28 October 2026 — Shares in Jio Platforms soared 21% in their Mumbai debut on Wednesday, giving India's biggest-ever initial public offering a roaring start, valuing Mukesh Ambani's digital and telecoms unit at about $131.5 billion and making it India's second-largest listed company by market value, behind only its parent, Reliance Industries.
The stock opened at 1,358 rupees a share, compared with its 1,119-rupee offer price, Reuters reported. The listing, which raised about $3.2 billion, is Reliance Industries' first listing in two decades, and it instantly reshuffled the top of India's corporate rankings, overtaking Bharti Airtel and HDFC Bank in market capitalisation.
Illustration: A festive stock exchange hall in Mumbai with a ceremonial bell, in the spirit of Jio's listing-day celebrations.
What Happened
The listing ceremony at the National Stock Exchange in Mumbai was a family occasion as much as a market event. Mukesh Ambani attended with his wife Nita Ambani, his eldest son Akash Ambani, who is Jio's managing director, and his other children Isha and Anant Ambani. According to Reuters, an emotional Mukesh Ambani was seen in tears as Anant traced Reliance's and Jio's legacies and journey in a speech at the ceremony, before the family rang the IPO bell on stage.
Major Indian newspapers on Wednesday carried front-page advertisements from Reliance Jio saying "Thank you, India" — a sign of how the company wanted the debut to be read: not merely as a financing exercise, but as a national moment. The enthusiasm had been foreshadowed in the unofficial grey market, where the premium for Jio shares ahead of the listing indicated gains of about 22%, almost exactly matching the opening jump.
Demand for the offering itself had already set records. Reuters reported ahead of the debut that the $3.2 billion IPO drew $77 billion in bids, making it India's most-subscribed offering ever, and that the company had been valued at up to $108.3 billion before trading began. Reporting by AFP put the subscription level at more than 22 times the shares on offer. Several brokerages had called that pre-listing valuation attractive, while flagging risks including competition, heavy capital spending and changes in India's telecom rules on spectrum, licensing and fees.
The debut also underlines how far Jio has come in a decade. Launched about ten years ago, its wireless service disrupted the Indian market with steep discounts that rapidly won customers from rivals Bharti Airtel and Vodafone, according to AFP. Jio's telecoms business now serves more than 530 million customers, and the carrier handles roughly 60% of India's mobile data traffic. The company raised more than $20 billion in 2020 from global investors and technology giants including Meta Platforms and Alphabet's Google, funding an ecosystem spanning payments, entertainment streaming and online services.
Background
Jio sits at the heart of Mukesh Ambani's long-term plan to transform Reliance Industries from an oil-and-chemicals conglomerate into what he has described as an "everything company" spanning consumer goods and technology. The IPO is a key step in that transformation: it gives the digital unit a public market value, a broader shareholder base and a currency for future expansion, while keeping it firmly within the Reliance orbit as the group's second pillar alongside its traditional energy and retail businesses.
The previous national IPO record was set by Hyundai Motor India in 2024, at $2.9 billion, according to AFP. Jio's $3.2 billion sale surpasses it comfortably, and the scale of the bids — $77 billion — suggests appetite that went far beyond the shares available. That appetite is part of a wider Indian story: data from LSEG cited by Reuters shows India has become the world's busiest IPO market this year by number of deals, with 246 listings so far, even though it ranks fourth by money raised, at $13.5 billion, behind the United States, mainland China and Hong Kong.
The listing also arrives at a mixed moment for Indian equities. Analysts quoted in the pre-listing coverage noted a weak year for Indian stocks overall, but argued that Jio's prospects stood apart. Analysts at financial services firm Emkay Global described the company as "the digital engine of India" and said its cash generation would strengthen as its heavy 5G investment cycle winds down, a view that helps explain why investors were willing to pay up for the debut despite broader market caution.
Illustration: Mobile phone towers above an Indian city at sunrise, symbolising the nationwide network behind Jio's more than 530 million customers.
Why It Matters
For India's markets, Jio's arrival as the second-largest listed company is a structural event, not a one-day story. Index providers will have to make room for a stock of this size, which typically triggers buying by passive funds and reshuffles weightings across the market. Retail investors who missed out on the IPO allocation may now chase the stock in the open market, while the strong debut sets a reference price for future technology listings in India and for the valuations of unlisted digital businesses.
For ordinary Indians, the listing matters in a different way. Jio's cheap data plans helped bring hundreds of millions of people online, and its expansion into digital services, payments and artificial intelligence means its strategy now touches daily life well beyond phone calls. A listed Jio will report its results in public, face scrutiny from a wider set of shareholders, and need to show that it can convert its vast subscriber base into durable profits as the costs of building 5G networks ease.
For Reliance itself, the debut crystallises a decade-long bet. The group spent heavily to build Jio from scratch, endured years of price wars that reshaped the telecoms industry, and brought in some of the world's biggest technology investors along the way. A $131.5 billion valuation on day one is the market's verdict on that bet so far — and a measure of how much of India's digital future investors now expect to run through a single company.
There are, however, reasons for caution that the brokerages themselves flagged. Telecoms remains a fiercely competitive business with heavy spending needs, and regulatory decisions on spectrum, licensing and fees can move profits sharply. A strong first day is not a guarantee of a strong first year, and Jio's shares will now be judged quarter by quarter on subscriber growth, average revenue per user and the pace at which its newer digital and AI businesses contribute.
What Happens Next
In the short term, traders will watch whether the stock holds its debut gains once the initial excitement fades and index-related flows settle. The grey market premium proved an unusually accurate guide to the opening price, but day-two trading will test whether the valuation reflects lasting demand or first-day scarcity.
Over the coming quarters, attention will turn to Jio's results as a listed company: whether 5G monetisation accelerates, how its enterprise and digital services grow, and what role its AI ambitions play in the investment case. Any announcement on index inclusion, dividends or further Reliance restructuring will also move the shares. For India's IPO market, the success of the year's biggest deal may encourage other large companies waiting in the pipeline — a prospect that would reinforce India's position as the world's busiest market for new listings by number, even as investors weigh whether valuations are running ahead of earnings.
Illustration: A rising growth chart above the Mumbai cityscape, symbolising Jio's record-breaking market debut.
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FAQ
How much did Jio shares rise on debut?
Jio Platforms shares opened at 1,358 rupees, up 21% from the 1,119-rupee offer price, in their Mumbai debut on Wednesday, 28 October 2026, according to Reuters.
How big was the IPO?
The IPO raised about $3.2 billion, making it India's biggest-ever initial public offering, surpassing the previous $2.9 billion record set by Hyundai Motor India in 2024. It drew $77 billion in bids, India's most-subscribed offering ever.
How valuable is Jio now?
At the debut price, Jio is valued at about $131.5 billion, making it India's second-largest listed company by market capitalisation, behind its parent Reliance Industries and ahead of Bharti Airtel and HDFC Bank.
How many customers does Jio serve?
Jio's telecoms business serves more than 530 million customers, and according to AFP the carrier handles roughly 60% of India's mobile data traffic. It is backed by Meta Platforms and Alphabet's Google.
What should investors watch next?
Investors will watch whether the debut gains hold, how index inclusion reshuffles market weightings, and Jio's quarterly results — especially subscriber growth, revenue per user, 5G monetisation and the contribution of its digital and AI businesses.
Sources
- Reuters, "Ambani's Jio surges 21% in Mumbai debut after record $3.2 billion India IPO", 28 October 2026 — https://www.reuters.com/world/india/ambanis-jio-surges-21-in-mumbai-debut-after-record-32-billion-india-ipo-2026-10-28/ (via syndication)
- Reuters, "Ambani's Jio to make Mumbai trading debut after record $3.2 billion India IPO", 28 October 2026 — https://www.reuters.com/world/india/ambanis-jio-make-mumbai-trading-debut-after-record-32-billion-india-ipo-2026-10-28/
- AFP via Tabla, "Ambani's Jio seeks S$4.1 billion in record India IPO", October 2026 — https://www.tabla.com.sg/news/india/ambanis-jio-seeks-s4-1-billion-record-india-ipo
- AFP via Malay Mail, "Ambani's Jio Platforms makes stock market debut after record US$3.2b India IPO", 28 October 2026 — https://www.bangsar.net.my/ambanis-jio-platforms-makes-stock-market-debut-after-record-us3-2b-india-ipo/
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