---
title: "Space sector falls broadly during regular hours, ASTS down over 6%, RKLB down over 5%, RDW down nearly 7%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/299482541.md"
description: "During regular trading hours on September 18, space concept stocks weakened collectively. ASTS fell 6.39% to $58.705, RKLB dropped 5.29% to $64.230, and RDW declined 6.97% to $10.745. Among derivative instruments, RKLZ bucked the trend with a 10.64% gain."
datetime: "2026-09-18T19:46:36.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/299482541.md)
  - [en](https://longbridge.com/en/news/299482541.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/299482541.md)
generator: "portal-rs"
---

# Space sector falls broadly during regular hours, ASTS down over 6%, RKLB down over 5%, RDW down nearly 7%

During regular trading hours on September 18, space concept stocks weakened collectively. As of 3:45 PM ET, mainstream names in the sector posted significant declines, with market sentiment leaning cautious.

Among them, **ASTS fell 6.39% to $58.705**, **RKLB dropped 5.29% to $64.230**, and **RDW declined 6.97% to $10.745**. Other mainstream names saw DXYZ down 0.67% at $30.940, VCX off 1.48% at $30.710, NASA down 0.87% at $23.940, and UFO falling 1.31% to $43.090.

Derivative instruments showed mixed performance, with **RKLZ bucking the trend up 10.64% to $19.360** and SSPC gaining 3.19% to $8.730; while ASTX plunged 12.64% to $9.680, RKLX dropped 10.62% to $14.810, SPCX fell 1.48% to $152.520, and SPCH declined 3.22% to $10.336.

## Sector constituents

| Name | Ticker  | Last    | Change  |
| ---- | ------- | ------- | ------- |
| RKLZ | RKLZ.US | 19.360  | +10.64% |
| SSPC | SSPC.US | 8.730   | +3.19%  |
| DXYZ | DXYZ.US | 30.940  | -0.67%  |
| NASA | NASA.US | 23.940  | -0.87%  |
| UFO  | UFO.US  | 43.090  | -1.31%  |
| VCX  | VCX.US  | 30.710  | -1.48%  |
| SPCX | SPCX.US | 152.520 | -1.48%  |
| SPCH | SPCH.US | 10.336  | -3.22%  |
| RKLB | RKLB.US | 64.230  | -5.29%  |
| ASTS | ASTS.US | 58.705  | -6.39%  |
| RDW  | RDW.US  | 10.745  | -6.97%  |
| RKLX | RKLX.US | 14.810  | -10.62% |
| ASTX | ASTX.US | 9.680   | -12.64% |

### Related Stocks

- [ASTS.US](https://longbridge.com/en/quote/ASTS.US.md)
- [RKLB.US](https://longbridge.com/en/quote/RKLB.US.md)
- [DXYZ.US](https://longbridge.com/en/quote/DXYZ.US.md)
- [VCX.US](https://longbridge.com/en/quote/VCX.US.md)
- [RDW.US](https://longbridge.com/en/quote/RDW.US.md)
- [SPCX.US](https://longbridge.com/en/quote/SPCX.US.md)

## Related News & Research

- [Rocket Lab just had the worst week in its history. Here's what I'd do with the stock now.](https://longbridge.com/en/news/302598445.md)
- [$100 Invested In Rocket Lab 5 Years Ago Would Be Worth This Much Today](https://longbridge.com/en/news/302611287.md)
- [Rocket Lab stock plunged after a new Neutron setback: What this delay really means for investors](https://longbridge.com/en/news/302634077.md)
- [Rocket Lab (RKLB) Dropped, So What Is Behind The Latest Attention?](https://longbridge.com/en/news/302235229.md)
- [Rocket Lab Stock Climbs: What's Happening?](https://longbridge.com/en/news/302309447.md)

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