AST SpaceMobile vs. Joby Aviation: Which Technology Stock Is a Better Buy in 2026?

AST SpaceMobile posted FY2025 revenue of $70.9 million versus a $341.9 million net loss, while Joby Aviation reported $53.4 million of revenue against a $929.8 million net loss. The article is a comparative stock-picking piece that favors AST SpaceMobile for its existing mobile operator partnerships and potentially shorter path to commercialization, but both names remain highly speculative with substantial regulatory and execution risk. Valuation remains elevated for both, with forward P/E at 75.8x for ASTS and P/S ratios of 472.8x for ASTS and 168.5x for JOBY.

Analysis

The market is implicitly pricing both names as if commercialization risk were mostly a timing issue, but the real gap is in dependency structure. ASTS is a telecom-network rollout story with partners already embedded in the distribution channel, which lowers customer acquisition friction and makes early revenue more convex once capacity comes online. JOBY is more binary: certification, operational safety, and fleet utilization must all clear before the model can prove unit economics, so the path to value creation is longer and more execution-sensitive.

Second-order, ASTS has a better chance of becoming a strategic toll road for incumbents that need coverage extension without capex-heavy terrestrial buildout; that can pull in pricing power from operators who want rural and maritime reach. The hidden risk is competitive compression from adjacent satellite constellations and potential regulatory friction around spectrum rights, which could delay monetization even if the technology works. JOBY’s broader ecosystem is actually the signal worth watching: airports, municipal approvals, maintenance, insurance, and pilot training create a multi-layer adoption hurdle that can move slower than aircraft certification itself.

On timing, ASTS is the nearer-term trading vehicle if the market starts rewarding booked capacity and deployment milestones over pure narrative. JOBY is more of a years-long option on urban mobility, where the upside is larger only if it clears the “safe, reliable, scalable” threshold — a standard that tends to compress multiples until visibility improves. The contrarian point: ASTS may look expensive on sales, but if revenue inflects with each satellite launch, the multiple can fall faster than the stock; JOBY may look cheaper on sales, but that can be a value trap if growth remains pre-commercial for several more quarters.

Key Decisions for Investors

• Long ASTS vs. short JOBY in a 3-6 month pair trade: favors the business with nearer monetization and better near-term catalyst density; stop if JOBY secures a major certification milestone or ASTS deployment slips.
• Buy ASTS on pullbacks tied to financing or launch-schedule fears; target a 6-12 month hold as satellite deployment converts optionality into contracted revenue.
• Use JOBY only as a long-dated call structure (6-18 months), not spot equity, to express upside while capping downside from certification delays and safety headlines.
• Short AMZN only as an idiosyncratic hedge if you want to isolate satellite connectivity competition risk; otherwise avoid because the competitive pressure is longer-dated and not yet a near-term earnings issue.
• For event-driven accounts, set alerts around ASTS launch/deployment updates and JOBY certification news; these are the two catalysts most likely to re-rate both names by 20-40% over days to weeks.