# Ark Invest Q3 Report Shows AI and Biotech Holdings Lead Returns While Tesla and Rocket Lab Drag

- URL: https://stocks.freetheai.org/news/ark-invest-q3-report-shows-ai-and-biotech-holdings-lead-returns-while-tesla-and-5c99df
- Published: 2026-10-17T08:29:33Z
- Category: company_news; sentiment: mixed; impact: medium
- Symbols: [NASDAQ:TXG](https://stocks.freetheai.org/symbols/NASDAQ-TXG), [NASDAQ:TSLA](https://stocks.freetheai.org/symbols/NASDAQ-TSLA), [NASDAQ:RKLB](https://stocks.freetheai.org/symbols/NASDAQ-RKLB)
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Ark Invest's third-quarter performance was driven by strong gains in artificial intelligence, biotechnology, and disruptive technology stocks, while high-profile holdings including Tesla Inc. (TSLA) and Rocket Lab Corp. (RKLB) acted as notable drags. 10x Genomics Inc. (TXG) was the largest individual contributor, adding 9.03 percentage points to the ARK Genomic Revolution ETF (ARKG) during its 28.92% overall gain in the quarter, along with 2.92 points to the ARK Innovation ETF (ARKK).

Additional upside came from Twist Bioscience Corp. (TWST), which climbed 87.83% on rising demand for AI-driven drug discovery, and Palantir Technologies Inc. (PLTR), which provided positive returns across five Ark funds. In contrast, Tesla Inc. (TSLA) was the top detractor in three funds, impacted by lower second-quarter profitability following vehicle price cuts and the phase-out of Model S and Model X production.

Market participants are monitoring key operational catalysts for these core holdings moving forward. 10x Genomics Inc. (TXG) is preparing for 40 planned shipments of its Atera spatial system in 2026. Meanwhile, Tesla Inc. (TSLA) has begun its Cybercab rollout in Austin after surpassing 1 million unsupervised robotaxi miles, and Rocket Lab Corp. (RKLB) retains a backlog of over 90 missions following 21 completed flights in 2025.

## Key points

- 10x Genomics Inc. (TXG) was Ark's top winner, contributing 9.03 percentage points to the ARK Genomic Revolution ETF's 28.92% gain in Q3.
- Twist Bioscience Corp. (TWST) gained 87.83% in Q3, boosted by demand for AI-driven drug discovery models.
- Palantir Technologies Inc. (PLTR) delivered positive performance contributions across five distinct Ark ETFs during the quarter.
- Tesla Inc. (TSLA) was the largest single drag on three Ark ETFs due to margin pressures from vehicle price cuts.
- Rocket Lab Corp. (RKLB) detracted from fund returns despite achieving 21 completed flights in 2025 and a backlog over 90 missions.

## Questions and answers

### Which stocks performed best for Ark Invest in Q3?

10x Genomics Inc. was the standout winner, adding 9.03 percentage points to the ARK Genomic Revolution ETF. Twist Bioscience Corp., Tempus AI Inc., Palantir Technologies Inc., and Nvidia Corp. also made notable positive contributions across Ark portfolios.

### Why did Tesla weigh on Ark Invest fund performance in Q3?

Tesla Inc. detracted from Ark fund returns following second-quarter earnings that disappointed on profitability. Lower margins were driven by price cuts and the wind-down of Model S and Model X production, though the stock later showed recovery signs following its Cybercab launch.

### How did Rocket Lab impact Ark's space and technology funds?

Rocket Lab Corp. weighed on fund performance, contributing -1.39 percentage points to the ARK Autonomous Technology & Robotics ETF and -2.04 points to the ARK Space & Defense Innovation ETF, despite completing 21 flights in 2025 and maintaining a backlog of over 90 missions.