Rocket Lab (RKLB) vs AST SpaceMobile (ASTS): Top Space Stocks to Monitor in 2026

Quick Overview

• Rocket Lab achieved 38% revenue growth, reaching $601.8 million in 2025, backed by a $1.85 billion record backlog
• An $816 million Space Development Agency contract strengthened Rocket Lab’s position in government aerospace
• AST SpaceMobile generated $70.9 million in 2025 revenue as it continues early-stage commercial infrastructure development
• AST maintains over $3.9 billion in pro forma liquidity to support satellite constellation expansion
• Analyst consensus favors Rocket Lab with a Moderate Buy rating, while AST receives a Reduce rating

Among space sector equities, Rocket Lab and AST SpaceMobile stand out as two of the most discussed investment opportunities. However, these companies pursue fundamentally different strategies and carry distinct risk-reward profiles. One has established a diversified operational foundation. The other represents a transformative vision for global mobile connectivity.

Rocket Lab delivered impressive financial performance throughout 2025. The company recorded 38% year-over-year revenue expansion, totaling $601.8 million. Its fourth-quarter performance reached a milestone with $179.7 million in revenue. Perhaps most significantly, the firm concluded 2025 with a $1.85 billion backlog—a 73% increase from the previous year. This substantial order book provides greater revenue visibility than most competitors in the space industry can demonstrate.

Rocket Lab USA, Inc., RKLB

The company’s revenue composition demonstrates meaningful diversification beyond launch services. Product sales generated $371.6 million during 2025, complemented by $230.2 million from service operations. Today’s Rocket Lab manufactures complete spacecraft, subsystems, and specialized components for defense and intelligence agencies.

Government Contract Wins Strengthen Rocket Lab’s Position

A significant milestone arrived when the company secured an $816 million agreement with the Space Development Agency. This substantial contract validates Rocket Lab’s capabilities for executing complex, multi-year government programs. Meanwhile, the Neutron medium-class launch vehicle represents management’s primary catalyst for the next phase of expansion.

Profitability remains elusive despite operational progress. Rocket Lab recorded a $198.2 million net loss for 2025. Leadership projected continued negative adjusted EBITDA for the opening quarter of 2026. Market valuations currently reflect anticipated future scale rather than present earnings performance.

AST SpaceMobile pursues an entirely different opportunity. The enterprise aims to deploy a satellite constellation providing cellular broadband connectivity directly to unmodified smartphones—eliminating requirements for specialized equipment. Successfully executing this vision at scale could unlock previously inaccessible market segments that conventional satellite providers cannot economically serve.

AST remains in the foundational stages of its mission. The company reported $70.9 million in total 2025 revenue. Fourth-quarter performance contributed $54.3 million, primarily from gateway equipment deliveries, mobile network operator partnerships, and government development milestones.

Strong Liquidity Position Supports AST SpaceMobile’s Deployment Plans

The company maintained $2.8 billion in cash and equivalents as of year-end 2025. Following additional capital raises completed in early 2026, pro forma liquidity exceeded $3.9 billion. This financial cushion enables continued satellite deployment without near-term funding pressures.

AST SpaceMobile, Inc., ASTS

AST has secured more than $1.2 billion in contracted revenue commitments from strategic partners. For a company just beginning to recognize meaningful revenue, this represents substantial commercial validation. Nevertheless, significant losses continue, and ultimate success depends critically on deployment velocity and network performance metrics.

Analyst sentiment clearly distinguishes between the two opportunities. Rocket Lab earns a Moderate Buy consensus rating, comprising 2 Strong Buys, 7 Buys, 7 Holds, and 1 Sell recommendation. AST SpaceMobile receives a Reduce consensus, with 2 Buys, 6 Holds, and 3 Sells.

Final Thoughts

Investment community confidence runs higher for Rocket Lab’s proven business model. While acknowledging AST’s substantial upside potential, analysts find the opportunity more challenging to quantify at this development stage. Rocket Lab offers greater operational maturity, revenue diversification, and broader analytical support. AST represents a higher-risk proposition with correspondingly larger potential returns if its satellite broadband architecture achieves technical and commercial success.

Rocket Lab presents the more established investment thesis currently. AST SpaceMobile offers the more ambitious transformational opportunity. The appropriate choice depends entirely on individual investor risk tolerance and portfolio objectives.