--- title: "US IPO Weekly Winners & Losers" type: "News" locale: "en" url: "https://longbridge.com/en/news/295329706.md" description: "The Renaissance IPO Index rebounded 8.6%, outperforming the S&P 500's 3.6% gain, driven by biotech and AI sectors. Braveheart Bio surged 65.6% on strong data, while SpaceX rose 23% post-lock-up. Biotech and AI infrastructure remain key themes for fall, with potential mega-IPOs from Anthropic or OpenAI anticipated. Londian Wason New Energy Tech plans a $75 million offering, and Robinhood Ventures Fund II aims to raise $200 million." datetime: "2026-08-09T16:00:11.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/295329706.md) - [en](https://longbridge.com/en/news/295329706.md) - [zh-HK](https://longbridge.com/zh-HK/news/295329706.md) generator: "portal-rs" --- # US IPO Weekly Winners & Losers New stocks won the week: **The Renaissance IPO Index rebounded +8.6%.** After three straight down weeks, the IPO market crushed the S&P 500, which rose +3.6%. Our IPO Index is back above +20% for the year, now that July’s AI sell-off has reversed. Biotech IPOs continued their winning streak, with four new listings from clinical-stage drug developers. Braveheart Bio (Nasdaq: BRVE), which targets cardiovascular disease, completed the week's largest IPO and popped +65.6%, boasting strong Phase 2 data and a cornerstone investment from Fidelity. The week's other biotech deals (ATTO, LTGO, BLSM) were more modest, but none finished negative. SpaceX had the most talked-about IPO lock-up release of all time, after its first public earnings announcement. The stock finished the week up +23%, nearly back to the offer price. Improved AI sentiment helped, but as Avery and Matt mentioned on the previous W&L podcast, lower-than-expected insider selling after a lock-up release can be a buy signal. **The Big Picture:** Biotech and AI infrastructure will continue to be major themes in the fall. And if SpaceX continues this rally, that raises the odds of a mega-IPO from Anthropic or OpenAI. For now, it’s “last call” for the 2026 summer IPO market. A typical IPO calendar would give companies one more week to launch their offerings before the annual August lull. **The Week Ahead:** China-based Londian Wason New Energy Tech (NYSE: FOIL) is raising $75 million in a deal led by Cantor. The company produces copper foils used in batteries. We don't count closed-end funds in our IPO stats, but Robinhood Ventures Fund II (NYSE: RVII) aims to raise $200 million, with a portfolio of dozens of smaller private tech companies. **Index Movers:** The IPO Index’s winner and loser this week were both AI-powered diagnostics companies. Downtrodden **Caris Life Sciences (CAI)** jumped +45.1% on a beat-and-raise quarter. **BillionToOne (BLLN)** slid -32.6% after the much-hyped company put up a decent quarter but merely reiterated 2026 guidance. The Renaissance IPO Index returned 8.6% last week vs. 3.6% for the S&P 500. ### Related Stocks - [BRVE.US](https://longbridge.com/en/quote/BRVE.US.md) - [HOOD.US](https://longbridge.com/en/quote/HOOD.US.md) - [.SPX.US](https://longbridge.com/en/quote/.SPX.US.md) - [VOO.US](https://longbridge.com/en/quote/VOO.US.md) - [IPO.US](https://longbridge.com/en/quote/IPO.US.md) - [SPY.US](https://longbridge.com/en/quote/SPY.US.md) - [ANTH.NA](https://longbridge.com/en/quote/ANTH.NA.md) - [IBBQ.US](https://longbridge.com/en/quote/IBBQ.US.md) - [IBB.US](https://longbridge.com/en/quote/IBB.US.md) - [LABD.US](https://longbridge.com/en/quote/LABD.US.md) - [BBH.US](https://longbridge.com/en/quote/BBH.US.md) - [XBI.US](https://longbridge.com/en/quote/XBI.US.md) - [BIS.US](https://longbridge.com/en/quote/BIS.US.md) - [IVV.US](https://longbridge.com/en/quote/IVV.US.md) - [SPLG.US](https://longbridge.com/en/quote/SPLG.US.md) - [SPXL.US](https://longbridge.com/en/quote/SPXL.US.md) - [UPRO.US](https://longbridge.com/en/quote/UPRO.US.md) - [SSO.US](https://longbridge.com/en/quote/SSO.US.md) - [SH.US](https://longbridge.com/en/quote/SH.US.md) - [SPXS.US](https://longbridge.com/en/quote/SPXS.US.md) - [SPXU.US](https://longbridge.com/en/quote/SPXU.US.md) - [SDS.US](https://longbridge.com/en/quote/SDS.US.md) - [SPYI.US](https://longbridge.com/en/quote/SPYI.US.md) - [JEPI.US](https://longbridge.com/en/quote/JEPI.US.md) - [XYLD.US](https://longbridge.com/en/quote/XYLD.US.md) - [HODU.US](https://longbridge.com/en/quote/HODU.US.md) - [HOOG.US](https://longbridge.com/en/quote/HOOG.US.md) - [HOOI.US](https://longbridge.com/en/quote/HOOI.US.md) - [HOOW.US](https://longbridge.com/en/quote/HOOW.US.md) - [HOOX.US](https://longbridge.com/en/quote/HOOX.US.md) - [HOOY.US](https://longbridge.com/en/quote/HOOY.US.md) - [HOOZ.US](https://longbridge.com/en/quote/HOOZ.US.md) - [HOYY.US](https://longbridge.com/en/quote/HOYY.US.md) - [ROBN.US](https://longbridge.com/en/quote/ROBN.US.md) ## Related News & Research - [Google is taking on Anthropic and OpenAI in the legal AI race](https://longbridge.com/en/news/296933883.md) - [Twist Bioscience Stock Resilient Despite Scorpion Capital Short Report](https://longbridge.com/en/news/296396483.md) - [Anthropic plans to change enterprise data retention policy, source says](https://longbridge.com/en/news/296528993.md) - [Anthropic’s Annualized Revenue Hits $65 Billion](https://longbridge.com/en/news/296238538.md) - [Anthropic to Give Founders 'Super Voting Powers' Ahead of IPO](https://longbridge.com/en/news/296277091.md) --- > **Disclaimer: This article is for reference only and does not constitute any investment advice.**