Even before the public issue opened, Jio raised an anchor book of ₹8,110 crore (approximately ₹2.5 lakh crore). Bids for this amounted to over 30 times the current share price.

Jio IPO

October 21, 2026, marked a new chapter in the history of the Indian stock market. The ₹30,213 crore IPO of Jio Platforms, the digital arm of Mukesh Ambani-led Reliance Industries, opened for subscription at 10 am. It was fully subscribed within just 100 minutes. This is the fastest ever complete subscription rate for any major IPO in India. By 5 pm, the issue was subscribed 3.01 times, with investors bidding for 62.36 crore shares against the 19.75 crore shares offered.

This is not just an IPO, but a testament to the confidence of institutional investors in the Indian primary market and their appetite for large issues...

What does 'fastest subscription' mean?

"Subscribed" in an IPO means that investors have placed bids for the company's shares, equal to the number of shares being sold. When demand equals or exceeds supply, the issue is considered "fully subscribed."

The measure of 'fastest' is how quickly it reaches 100% subscription after opening. Jio Platforms achieved this in 100 minutes.

What is the math behind speed?

The biggest driver of Jio's IPO's speed was the participation of institutional investors (QIBs), who accounted for nearly 50% of the total issue. This is why the QIB quota was filled within 10 minutes, while other categories took longer.

The retail investor portion was subscribed only 0.58 times on the first day. Retail participation lagged significantly behind institutional demand. The non-institutional investor (HNI) portion was subscribed 1.03 times. The employee quota was subscribed 1.15 times, and the shareholder quota was subscribed 1.12 times.

This clearly means that the real engine of the rally was large institutional investors, who placed heavy bids in the anchor book and QIB category.

Demand of Rs 2.5 lakh crore in the anchor book

Jio didn't just set a record for the speed of subscriptions. Its anchor book of ₹8,110 crore (₹8,110 crore) received bids worth ₹2.5 lakh crore (₹2.5 lakh crore), representing more than 30 times the number of shares available. This is the largest anchor demand in Indian IPO history.

Record size: India's largest IPO

Jio Platforms' ₹30,213 crore issue surpassed Hyundai Motor India's ₹27,870 crore IPO to become India's largest ever. At the upper end of the price band of ₹1,065 to ₹1,119 per share, the company's valuation is estimated at approximately ₹10.3 lakh crore.

The issue is entirely fresh, with 270 million new shares being issued and no offer-for-sale (OFS) component, meaning existing investors are not selling their shares. The company will use ₹27,500 crore to repay or prepay debt. The remaining amount will be kept for general corporate purposes.

What does the 100-minute record indicate?

Jio Platforms' full subscription in 100 minutes isn't just a statistic. It demonstrates the speed and depth of institutional investor confidence. The QIB portion was subscribed in 10 minutes and the anchor book received 30 times the demand, proving that large investors saw this issue as a "can't-miss" opportunity.

Interestingly, retail investors lagged behind on the first day. The retail quota was only 0.58 times filled. This means the bullish story is primarily about big money. In any case, this record 100-minute period has set a new benchmark in the history of the Indian IPO market and has become a benchmark for future large issues.