Joby Aviation is navigating a paradox: its stock has fallen roughly 50% this year even as the company makes substantial progress toward commercializing electric air taxis. While Wall Street has grown skeptical of speculative aviation stocks, Joby's technological and regulatory milestones suggest the market may be underestimating the company's position in what could become a multi-trillion-dollar industry.

Why Has Joby's Stock Fallen So Sharply Despite Technical Progress?

Joby Aviation (JOBY) trades at $6.75 per share as of late July 2026, down from a 52-week high of $20.95, reflecting broader investor hesitation toward speculative stocks and the absence of commercial eVTOL operations in U.S. airspace. The company has built one of the world's most advanced flying taxi prototypes, yet without proof of mass production capability, confidence has wavered. The market's skepticism centers on a simple reality: no electric vertical takeoff and landing (eVTOL) aircraft are currently flying paying passengers in the United States.

However, this narrative overlooks Joby's regulatory progress. The company is two years deep into the fourth of five Federal Aviation Administration (FAA) certification stages for its S4 aircraft design. FAA Type Certification would validate that Joby's eVTOL meets the agency's safety standards, a critical milestone for commercialization. Additionally, Joby has demonstrated flights in New York City and is gearing up for production with manufacturing partner Toyota, signaling that the company is further along than many investors realize.

What Market Size Could Justify Joby's Long-Term Potential?

Five years ago, Morgan Stanley released a comprehensive analysis of the eVTOL and urban air mobility (UAM) market that has become a benchmark for the industry. The report's base case predicted the global eVTOL and UAM market would reach $1 trillion by 2040 and $9 trillion by 2050. In Morgan Stanley's most bullish scenario, the market could reach $4.4 trillion by 2040 and $18.9 trillion by 2050.

Joby's current trajectory appears consistent with both scenarios. The company's progress on FAA certification, combined with its participation in the White House eVTOL Integration Pilot Program (eIPP) announced in September 2025, suggests the regulatory environment is becoming more accommodative. This aligns with Morgan Stanley's bull case condition: "Economic rationale more clearly evident and taking a far larger share of surface transport market, bolstered by relatively more accommodative policy and path to certification".

How Are Infrastructure Challenges Shaping the eVTOL Industry's Timeline?

While aircraft certification advances, the real bottleneck for scaling air taxi operations lies in infrastructure development. Industry experts emphasize that vertiports, charging equipment, and electrical systems must be built out across major metropolitan areas before eVTOL services can operate at scale. A recent report from the U.S. Government Accountability Office (GAO) identified key infrastructure barriers, including cost, uncertainty about demand, and the availability of reliable electricity at airports.

Recognizing this challenge, Archer Aviation, a competitor in the eVTOL space, announced a consortium in July 2026 to electrify up to 250 air taxi sites across America's largest airports and metropolitan areas over the next decade. The partnership includes BETA Technologies and Macquarie Capital and will utilize standardized charging infrastructure endorsed by the General Aviation Manufacturers Association. This coordinated approach suggests the industry is moving beyond aircraft development toward the ecosystem required for commercial operations.

Steps to Understanding Joby's Competitive Position in the eVTOL Market

• Regulatory Milestone Tracking: Monitor Joby's progress through the FAA's five-stage Type Certification process. The company's advancement to stage four of five represents a critical inflection point; completion of stage five would clear a major hurdle for commercial operations.
• Manufacturing Readiness Assessment: Evaluate Joby's partnership with Toyota and its production timeline. The ability to scale manufacturing from prototypes to commercial aircraft will determine whether the company can capture market share as demand emerges.
• Infrastructure Development Participation: Track Joby's involvement in the eIPP pilot program and any partnerships it announces for vertiport development and charging infrastructure. Companies that secure infrastructure partnerships early may gain competitive advantages in key markets.
• Market Timing Evaluation: Consider the timeline for commercial eVTOL operations in the United States. The 2028 Los Angeles Olympics, where Archer Aviation is the official air taxi provider, will serve as a real-world test case for the entire industry's readiness.

Joby's current stock price reflects market pessimism about near-term commercialization, but the company's regulatory progress and participation in federal pilot programs suggest that the pessimism may be overdone. For long-term investors willing to tolerate volatility, the 2026 sell-off could represent a significant entry point before the company reaches critical milestones in FAA certification and production scaling.

The eVTOL industry remains in its infancy, with no commercial operations in the United States yet. However, Joby's technological achievements, regulatory momentum, and alignment with government initiatives position it to benefit from the massive market opportunity that Morgan Stanley and other analysts have identified. The question for investors is not whether the eVTOL market will emerge, but which companies will lead it when it does.

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