Key Highlights

● Rocket Lab traded at $70.21 in the early afternoon on Tuesday, September 29, 2026, moving with the space sector.

● Starship reached orbit but completed only two orbits instead of the six planned because of engine problems.

● Morgan Stanley cautioned about recurring problems with the propulsion system, though the flight added significant Starlink capacity.

● AST SpaceMobile whipsawed and Intuitive Machines declined, while the Procure Space ETF slipped lower too.

Rocket Lab Corporation (NASDAQ:RKLB) fell on Tuesday, September 29, 2026, trading at $70.21 in the early afternoon as space stocks weakened after SpaceX's latest Starship flight ran into engine trouble. No specific reason was reported for Rocket Lab, and the stock moved with the space sector. The Procure Space ETF, which tracks a basket of space companies, slipped.

What Happened With Starship

Starship reached orbit on Tuesday, but it completed only two orbits instead of the six planned because of engine problems. One report described the flight as SpaceX's first orbital satellite deployment by Starship, marred by an engine shutdown. The flight still achieved a milestone: an analyst noted that the single launch added more Starlink capacity that morning than the first year and a half of Starship launches. But Morgan Stanley cautioned about recurring problems with the propulsion system. SpaceX's own recently listed shares wavered, with sources split on their direction for the day.

Why It Mattered for Rocket Lab

Rocket Lab is one of the best-known publicly traded space companies. It launches small satellites on its Electron rocket, is developing the larger Neutron rocket, and builds spacecraft and components for commercial and government customers. Because SpaceX dominates the launch market, its progress and setbacks shape how investors view the whole industry. Rocket Lab was not alone: AST SpaceMobile whipsawed and was down in the early afternoon, and Intuitive Machines also declined.

Wall Street's Session

The Nasdaq-100 edged higher to 30,339.33 on the chip rally, even as the S&P 500 slipped 12.85 points to 7,670.84 and the Dow Jones Industrial Average fell 131.59 points to 51,349.92. The Nasdaq Composite ended nearly flat at 26,797.54. It was the fifth loss in six sessions for the three major indexes. Breadth was mixed, with gains concentrated in a narrow group of large technology names.

Rates Weigh on Growth

The 30-year Treasury Yield reached its highest level since 2002, and the 10-year touched its highest in roughly two decades. Higher rates tend to weigh on Growth Stocks such as space companies, whose value depends heavily on profits expected years in the future.

Data and Fed Voices

The Conference Board's consumer confidence index fell to 81.9 in September from 88.6 in August, its lowest reading since 2014 and below the 89.2 forecast. August Job Openings slipped to 7.079 million, below forecasts and the lowest since March. Chicago Fed President Austan Goolsbee said massive deficits are a form of stimulus that can overheat the economy. New York Fed President John Williams said there is no need for urgency after the central bank's September meeting, and odds of an October rate hike fell to roughly a coin flip.