---
title: "Weekly Recap | Ark Innovation ETF +6.3%, crypto and biotech lead the charge"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/296672511.md"
description: "ARKK rallied 6.3% this week, closing at $86.21, while the S&P 500 fell 1.43%. The ETF outperformed the benchmark by roughly 7.73 percentage points. It opened Monday (Aug 17) at $80.97, dipped to a weekly low of $79.055 on Tuesday (Aug 18), then staged a three-day rebound. Friday (Aug 21) saw the high of the week at $86.45, with the close near that level. The weekly range was 9.13%, and average daily volume ran about 11."
datetime: "2026-08-22T06:16:14.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/296672511.md)
  - [en](https://longbridge.com/en/news/296672511.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/296672511.md)
generator: "portal-rs"
---

# Weekly Recap | Ark Innovation ETF +6.3%, crypto and biotech lead the charge

## The Week

ARKK rallied 6.3% this week, closing at $86.21, while the S&P 500 fell 1.43%. The ETF outperformed the benchmark by roughly 7.73 percentage points. It opened Monday (Aug 17) at $80.97, dipped to a weekly low of $79.055 on Tuesday (Aug 18), then staged a three-day rebound. Friday (Aug 21) saw the high of the week at $86.45, with the close near that level. The weekly range was 9.13%, and average daily volume ran about 11.67% above the 60-day median, signalling a pickup in trading activity.

## Sector News

Crypto and biotech themes drove ARKK this week. Trump hosted crypto industry leaders, and bitcoin broke through $77,000, lifting Coinbase and Robinhood. Tempus AI surged on multiple sessions after BTIG raised its target price and mRNA vaccine news provided a further catalyst. Twist Bioscience gained 22.79% for the week despite a short report from Scorpion Capital, as Anthropic named it the independent evaluator for AI-designed protein testing. Tesla also contributed: its Robotaxi went fully unsupervised in Austin, and the Semi electric truck was confirmed for a European launch, pushing the stock up 6.02%.

## The Week Ahead

On Tuesday (Aug 25), the US releases FHFA house price data, the Case Shiller 20-city index, the Richmond Fed composite index, consumer confidence, and new home sales. Housing and confidence figures will offer a cross-check on the rate path and growth outlook. Stronger-than-expected prints could reinforce hawkish Fed expectations, weighing on growth-stock valuations.

## In Short

ARKK pushed higher against a weaker tape this week, helped by easing crypto regulatory fears and stock-specific catalysts in biotech and EVs. On the latest trading day, large-lot money was a net seller while small and medium orders were net buyers, pointing to a split between retail enthusiasm and institutional caution. The focus now shifts to next week’s economic data and whether the momentum in key holdings can hold through what may be a rates-sensitive stretch.

*This article is generated by LongbridgeAI from market data, for information only and not investment advice.*

### Related Stocks

- [ARKK.US](https://longbridge.com/en/quote/ARKK.US.md)

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> **Disclaimer: This article is for reference only and does not constitute any investment advice.**