What Changed
Price Move History
- Daily moves over 5%
- 71 156 sessions, January 29, 2026 to September 11, 2026
- Largest daily move
- +28.8% close of April 9, 2026
Company Description
York Space Systems Inc. (NYSE: YSS) provides space and defense mission solutions for national security, government, and commercial customers. The company operates as a U.S.-based defense and commercial prime focused on small satellites, spacecraft systems, ground operations, downlink capabilities, and software-enabled services across the space mission lifecycle.
York develops proprietary hardware and software intended to support customer requirements from spacecraft design and production through launch, operations, and mission services. Its offering spans several complementary categories: Components, Subsystems, Spacecraft Platforms, Ground Operation, Global Downlink, and Software-Enabled Services. These capabilities support missions for U.S. federal government-controlled agencies and domestic commercial customers, including national security space architectures and commercial space programs.
The company derives a majority of its revenue from long-term firm-fixed-price production contracts. These contracts are tied to the design of small satellites, launch services, and ground services. As a mission prime, York combines spacecraft manufacturing, mission operations, supply-chain coordination, and software capabilities to deliver integrated space systems rather than a single component or service line.
York’s operating model includes high-rate manufacturing capacity, a domestic supply chain, and mission operations centers that support deployed spacecraft and operational constellations. The company’s public updates describe work on national defense and warfighter space capabilities, proliferated low Earth orbit architectures, and communications demonstrations involving government and commercial services.
In 2026, York completed its acquisition of Orbion Space Technology, a manufacturer of flight-proven electric specialty aerospace systems. The acquisition added spacecraft subsystem capability to York’s integrated space ecosystem and aligned with the company’s focus on domestic production capacity and constellation-scale mission requirements.
York Space Systems is a Delaware corporation with common stock listed on the New York Stock Exchange under the symbol YSS. The company is based in Colorado, with regulatory filings identifying its principal executive office in Greenwood Village.
Stock Performance
York Space Systems (YSS) closed at $7.88 on September 11, 2026. Over the past month, the price has lost 25.7%.
YSS Metrics & Rankings
Price returns through September 11, 2026. Month-to-date and YTD include the first trading day. Ranking links may use different dates.
Latest News
York Space Systems has 10 recent news articles, with the latest published 2 days ago. Of the recent coverage, 1 article coincided with positive price movement and 9 with negative movement. Key topics include earnings, earnings date. View all YSS news →
SEC Filings
York Space Systems has filed 5 recent SEC filings, including 1 Form 4, 1 Form SCHEDULE 13G/A, 1 Form 10-Q, 1 Form 8-K. The most recent filing was submitted on August 14, 2026. SEC filings provide transparency into a company's financial condition, material events, and regulatory compliance. View all YSS SEC filings →
Insider Radar
Insider selling at York Space Systems over the past 90 days can reflect routine portfolio management, scheduled trading plans (Rule 10b5-1), tax planning, or compensation-related dispositions rather than a directional view on the stock.
Financial Highlights
Upcoming Events
Production deliveries through 2027
PExT demonstration extended
Expanded PExT demonstrations
York Space Systems has 3 upcoming scheduled events. The next event, "Production deliveries through 2027", is scheduled for January 1, 2027 (in 110 days). Investors can track these dates to stay informed about potential catalysts that may affect the YSS stock price.
Short Interest History
Short interest in York Space Systems (YSS) currently stands at 6.0 million shares, down 27.7% from the previous reporting period, representing 4.8% of the float. Since January 2026, short interest has increased by 268.1%. This relatively low short interest suggests limited bearish sentiment.
Days to Cover History
Days to cover for York Space Systems (YSS) currently stands at 1.5 days, down 73.3% from the previous period. This low days-to-cover ratio indicates high liquidity, allowing short sellers to quickly exit positions if needed. The days to cover has increased 54% over the past year, indicating improving liquidity conditions. The ratio has shown significant volatility over the period, ranging from 1.0 to 8.1 days.
YSS Company Profile & Sector Positioning
York Space Systems (YSS) operates in the Aerospace & Defense industry within the broader Industrials sector and is listed on the NYSE.