Skip to content

Article

Investors Devour Softbank’s $11B+ Notes Offering for OpenAI Investment; Demand at 4x Book Size

By: Geoff Burrows

✨ Summary by AI at Octus
SoftBank's recent $10 billion senior unsecured notes offering, along with a €1 billion offering, attracted significant investor interest, with book orders exceeding $40 billion, four times the book size. The offering's appeal was driven by its loan-to-value ratio, ties to OpenAI, and the growing demand for central processing units. The notes were priced across various durations, with the dollar tranches offering a flat yield curve. Proceeds from the offering will fund SoftBank's investment in OpenAI, and investors were particularly interested in SoftBank's credit fundamentals and management's approach to maintaining its LTV.

SoftBank’s mammoth triple-tranche $10 billion senior unsecured notes and dual-tranche €1 billion senior unsecured notes offering landed with a bang among investors, who touted the offering’s loan to value ratio, or LTV, as well as SoftBank’s executives and ties to OpenAI.

Despite the historic ask, book orders on the Citi-led deal surpassed $40 billion – 4x book size – by midday Sept. 23, according to sources, causing pricing to tighten across all durations. The $1 billion 3.5-year notes offering priced at 8.625%, the $4.5 billion 5.5-year notes at 9.25% and the $4.5 billion 7.5-year notes at 9.75%. Meanwhile, the €500 million four-year tranche priced at 7.125% and the six-year €500 million notes at 8%.

Investors flagged that growing central processing unit demand drove interest in the deal, helping the order book to swell from about $8 billion in commitments last week to $20 billion by Sept. 22 and more than $40 billion by yesterday, Sept. 24.

Investors also highlighted that even with tighter pricing, the deal’s LTV of about 15% to 20% is attractive compared with the mid-8s to high-9s paper in the market. Investors viewed the dollar tranches, which launched with pricing of low 9s on the 3.5-year, mid-9s on the 5.5-year and high 9s on the 7.5-year, as a very flat yield curve.

The sheer size of the offering, and its place in the high-yield index, drew in substantial long-only real-money players and hedge funds, according to sources close. The deal offered U.S. high-yield investors the large exposure to SoftBank and OpenAI, opening up the market to the Japanese conglomerate. Much of the demand came from the U.S. market, sources close noted.

Some viewed the offering as a bet on OpenAI and its initial public offering timeline. Proceeds from the offering will be used to fund SoftBank’s $10 billion payment for the third tranche of its investment in the ChatGPT maker. One investor noted that OpenAI had in recent months been catching up with Anthropic’s profitable business-to-business model and gaining market share, which supported the offering. However, several investors focused their diligence on SoftBank’s credit fundamentals and how the company plans to maintain its LTV and address its other maturities, rather than focusing on expectations for its major holdings, sources noted.

The company is marketing itself off of a 13% LTV ratio on its preferred definition of this metric, and up to 25% if the denominator is adjusted by outstanding margin loans and cash balances. Earlier this week, Octus analysts released a model that allows investors to alter LTV expectations based on the value of SoftBank’s underlying assets, such as its 86.4% stake in chip designer Arm Holdings or its substantial holdings in OpenAI.

SoftBank CEO Masayoshi Son’s track record, which includes achieving outsized gains on Arm Holdings and a stake in Alibaba that was once worth more than $200 billion, were cited as evidence of the company’s upside. While SoftBank’s debt may be more volatile owing to big swings, the bond’s pricing is likely to compensate investors, sources added.

In addition to its CEO, investors praised SoftBank’s management team, saying that the market appreciated how approachable and accessible they were for face-to-face meetings.

Citi was lead left on the offering. Goldman Sachs, JPMorgan and Morgan Stanley acted as joint global coordinators, while HSBC, Mizuho, SMBC, Barclays, Deutsche Bank, Nomura, BNP Paribas, Crédit Agricole, Natixis, Daiwa and Banca IMI acted as joint bookrunners.

Citi declined to comment.

This publication has been prepared by Octus Intelligence, Inc. or one of its affiliates (collectively, "Octus") and is being provided to the recipient in connection with a subscription to one or more Octus products. Recipient’s use of the Octus platform is subject to Octus Terms of Use or the user agreement pursuant to which the recipient has access to the platform (the “Applicable Terms”). The recipient of this publication may not redistribute or republish any portion of the information contained herein other than with Octus express written consent or in accordance with the Applicable Terms. The information in this publication is for general informational purposes only and should not be construed as legal, investment, accounting or other professional advice on any subject matter or as a substitute for such advice. The recipient of this publication must comply with all applicable laws, including laws regarding the purchase and sale of securities. Octus obtains information from a wide variety of sources, which it believes to be reliable, but Octus does not make any representation, warranty, or certification as to the materiality or public availability of the information in this publication or that such information is accurate, complete, comprehensive or fit for a particular purpose. Recipients must make their own decisions about investment strategies or securities mentioned in this publication. Octus and its officers, directors, partners and employees expressly disclaim all liability relating to or arising from actions taken or not taken based on any or all of the information contained in this publication. © 2026 Octus. All rights reserved. Octus(TM) and the Octus logo are trademarks of Octus Intelligence, Inc.