SB Energy and Oura Ring submitted confidential IPO filings in the last week of August, adding an estimated $6 billion to $8 billion combined to a pipeline that had seen just one sizable issuer since mid-July. The filings arrive as equity desks prepared for a dead September—historically the weakest month for new issuance—and as allocators pulled back from primary exposure after three consecutive weeks of net redemptions in US equity funds.
SB Energy, SoftBank's renewable energy platform with operations across India and the United States, filed confidentially on August 27. The company holds approximately 20 gigawatts of solar and wind capacity under development and reported $480 million in trailing revenue for the twelve months ended June 2024. Oura, the Finnish wearables maker valued at $5.2 billion in its May 2023 Series D, filed August 29. The company shipped 2.8 million rings in 2023 and trades at an estimated 8.5x trailing revenue multiple in secondary markets, a discount to Apple's 8.9x but a premium to Fitbit's 2.1x at acquisition.
The timing tests a narrow assumption. Allocators spent August pricing in a September desert—no material deals, no price discovery, no reason to staff up syndicate calendars. These two filings suggest underwriters see a different calendar. If SB Energy and Oura clear their quiet periods and schedule roadshows for late September or early October, they front-run the traditional October reopening and force re-evaluation of cash deployment schedules that assumed dormancy through month-end. The IPO market's August tally closed at $1.1 billion raised across four deals, the slowest two-month stretch since December 2022. September's historical average is $2.3 billion. Two multibillion-dollar filings do not guarantee pricing, but they do guarantee underwriter attention and the calendar density that makes other issuers comfortable moving.
The second-order effect is pipeline psychology. Confidential filings typically surface 90 to 120 days before pricing. If these two companies move to public filing in October and price in November or December, they establish a fourth-quarter window that has been theoretical since June. Family offices and fundless sponsors have been sitting on $78 billion in committed but undeployed growth capital as of July, per PitchBook. A functioning IPO exit market pulls forward deployment decisions that have been deferred under the assumption that exits remain frozen. That changes behavior in private rounds closing now.
Allocators should watch for public amendments from both companies in the next 60 days. SB Energy's filing will clarify whether SoftBank is positioning this as a liquidity event or a balance-sheet repair—its Vision Fund 2 is still underwater on 19 of 28 disclosed positions. Oura's S-1 will reveal margin structure and subscription renewal rates, the two data points that will determine whether it prices closer to Apple or closer to Fitbit. If either company moves to full public filing before October 15, the traditional October window compresses and other issuers with filed-but-unpriced registrations will accelerate their own roadshow schedules.
The filings are not a reopening. They are a test of whether underwriters believe allocators will show up in September, a month when they historically do not. The answer comes in the next 30 days, when either company schedules its roadshow or quietly extends its timeline into November.