Compare · RKLB vs YSS
RKLB vs YSS
Side-by-side comparison of Rocket Lab Corporation (RKLB) and York Space Systems Inc. (YSS): market cap, price performance, sector, and recent activity on the wire.
Summary
- Both RKLB and YSS operate in Military/Government/Technical (Industrials), so they compete in similar markets.
- RKLB is the larger of the two at $38.53B, about 31.3x YSS ($1.23B).
- Over the past year, RKLB is up 30.5% and YSS is down 73.6% - RKLB leads by 104.2 points.
- RKLB has been more active in the news (34 items in the past 4 weeks vs 10 for YSS).
- RKLB has more recent analyst coverage (25 ratings vs 15 for YSS).
PerformanceRKLB-24.88%YSS-73.65%
2026-01-29+0.00%2026-08-28
- Company
- Rocket Lab Corporation
- York Space Systems Inc.
- Price
- $64.39-4.64%
- $8.96-2.61%
- Market cap
- $38.53B
- $1.23B
- 1M return
- -0.45%
- -41.33%
- 1Y return
- +30.53%
- -73.65%
- Industry
- Military/Government/Technical
- Military/Government/Technical
- Exchange
- NASDAQ
- NYSE
- IPO
- 2020
- 2026
- News (4w)
- 34
- 10
- Recent ratings
- 25
- 15
RKLB
Rocket Lab Corporation
Rocket Lab USA, Inc., an aerospace company, focuses on developing rocket launch and control systems for the space and defense industries. The company provides launch services, spacecraft components, satellites and other spacecraft, and on-orbit management solutions; and designs, manufactures, and sells Electron and Neutron launch vehicles, as well as offers Photon platform for spacecraft solutions. It serves customers in commercial, civil, defense, and academic sectors. The company was founded in 2006 and is headquartered in Long Beach, California.
Latest RKLB
- Chief Operations Officer Klein Frank sold $2,368,354 worth of shares (35,558 units at $66.61) as part of a pre-agreed trading plan, decreasing direct ownership by 4% to 925,737 units (SEC Form 4)
- SVP & General Counsel Kampani Arjun sold $402,186 worth of shares (6,034 units at $66.65) as part of a pre-agreed trading plan, decreasing direct ownership by 2% to 250,917 units (SEC Form 4)
- SEC Form 144 filed by Rocket Lab Corporation
- SEC Form EFFECT filed by Rocket Lab Corporation
- VP Corp Controller & CAO Ricupati Agostino sold $46,581 worth of shares (669 units at $69.63), decreasing direct ownership by 2% to 26,863 units (SEC Form 4) (tax liability)
- Chief Financial Officer Spice Adam C. sold $673,790 worth of shares (9,677 units at $69.63) as part of a pre-agreed trading plan, decreasing direct ownership by 0.83% to 1,155,967 units (SEC Form 4) (tax liability)
- President, Rocket Lab USA, Inc Clevenger Marvin Bradford sold $1,047,972 worth of shares (15,051 units at $69.63), decreasing direct ownership by 3% to 458,924 units (SEC Form 4) to cover taxes
- Chief Operations Officer Klein Frank sold $3,181,443 worth of shares (45,692 units at $69.63) as part of a pre-agreed trading plan, decreasing direct ownership by 5% to 961,295 units (SEC Form 4) to satisfy withholding tax
- SVP & General Counsel Kampani Arjun sold $539,896 worth of shares (7,754 units at $69.63) as part of a pre-agreed trading plan, decreasing direct ownership by 3% to 256,951 units (SEC Form 4) to satisfy withholding tax
- SEC Form 424B3 filed by Rocket Lab Corporation
Latest YSS
- York Space Systems to Present at Jefferies Global Industrials Conference
- Craig Hallum initiated coverage on York Space Systems with a new price target
- York Space Systems Selected for U.S. Space Force Space Data Network
- York Space Systems Selected for U.S. Space Force NITE-STAR Contract to Support National Space Test and Training Complex
- York Space Systems downgraded by Canaccord Genuity
- York Space Systems downgraded by Analyst with a new price target
- York Space Systems Reports Second Quarter 2026 Results
- York Space Systems Inc. filed SEC Form 8-K: Results of Operations and Financial Condition, Financial Statements and Exhibits
- Large owner Blackrock Portfolio Management Llc sold $4,537,315 worth of shares (401,674 units at $11.30) (SEC Form 4)
- Amendment: Large owner Blackrock Portfolio Management Llc sold $10,220,261 worth of shares (674,604 units at $15.15) (SEC Form 4)