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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 $63.72B, about 16.9x YSS ($3.78B).
  • Over the past year, RKLB is up 279.2% and YSS is down 12.6% - RKLB leads by 291.8 points.
  • RKLB has been more active in the news (42 items in the past 4 weeks vs 8 for YSS).
  • RKLB has more recent analyst coverage (25 ratings vs 10 for YSS).
PerformanceRKLB+31.06%YSS-12.55%
2026-01-29+0.00%2026-06-08
MetricRKLBYSS
Company
Rocket Lab Corporation
York Space Systems Inc.
Price
$112.33+2.04%
$29.75+2.39%
Market cap
$63.72B
$3.78B
1M return
+43.00%
-11.10%
1Y return
+279.24%
-12.55%
Industry
Military/Government/Technical
Military/Government/Technical
Exchange
NASDAQ
NYSE
IPO
2020
2026
News (4w)
42
8
Recent ratings
25
10
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.

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