Golden Dome’s $185 Billion Question: Who Actually Gets Paid?

Key Points

• Alphabet is reportedly in early talks to help secure Golden Dome's data systems, although the Pentagon has not confirmed its participation.
• Lockheed Martin and RTX raised their 2026 guidance as major defense awards boosted their backlogs, reinforcing their manufacturing advantages.
• SpaceX has already secured a $2.29 billion military data-network contract, while its AI business is becoming a major driver of revenue growth.

The delay in approving 2027 defense spending has significantly impacted the Pentagon's estimated $185 billion Golden Dome missile shield. That project impacts some of the leading large-cap defense stocks. However, in contrast to past defense megaprojects, the plan for the Golden Dome doesn't include a single prime contractor. Instead, the program is pulling in a mix of established names and newer entrants.

The latest potential name on that list is Alphabet NASDAQ: GOOGL. On Oct. 30, reports surfaced that the company is in early talks with the Pentagon. The focus is securing the data that feeds Golden Dome's command-and-control software.

Investors may read that as Silicon Valley punching above its weight. The numbers tell a more measured story. Lockheed Martin NYSE: LMT and RTX NYSE: RTX just raised their respective 2026 guidance for the second straight quarter. Their combined backlog now tops $630 billion, although that figure includes RTX's commercial aerospace business. Recent growth reflects major awards for interceptors and munitions that take years of manufacturing experience to produce.

Tech companies can realistically compete in areas such as software, networking, and cybersecurity. But the incumbents still own the production lines. And for new entrants like SpaceX NASDAQ: SPCX, winning a Golden Dome contract is only the start.

Alphabet: A Credibility Win More Than a Revenue Driver

The reported talks center on data storage, networking, and cybersecurity. That layer keeps information flowing if adversaries cut landlines or cell towers. It sits beside a separate group, including Palantir NASDAQ: PLTR, Anduril, and SpaceX, that is building the command-and-control software. A Pentagon official said no final decision has been made on the group or its members.

Scale is the key context. Google Cloud revenue more than doubled to $30.7 billion in the third quarter. Its backlog reached $561 billion, with just over 55% expected to convert to revenue within 24 months. Against that base, a Golden Dome data contract would barely move the needle.

The real prize is credibility. This would be Google's first publicly known Golden Dome work. It also marks a sharp turn from 2018, when employee protests led Google to drop the Pentagon's Project Maven contract.

Investors already have a less obvious link. Alphabet reported beneficial ownership of 7.2% of SpaceX's Class A shares as of June 30, 2026. Meanwhile, Q3 earnings per share (EPS) of $2.12 missed the $3.01 consensus, partly due to an $8.7 billion loss on equity securities, and free cash flow turned negative on heavy capital expenditures (CapEx). Golden Dome won't change that conversation.

Lockheed Martin: The Backlog Is the Moat

Lockheed Martin raised its 2026 outlook again after its Q3 2026 earnings report. It now expects sales of $80 billion to $82 billion and EPS of $30.35 to $30.75. Third-quarter sales rose 11% to $20.7 billion. It was the second straight quarterly raise.

The backlog is the bigger story. It hit a record $292 billion, up 27% from the second quarter. Almost all of that growth came from one segment. A multiyear PAC-3 MSE interceptor award added $52.5 billion. That followed a contract worth up to $35 billion for THAAD interceptors in the prior quarter.

This gives Lockheed Martin a moat tech companies can't compete with. Interceptors require qualified suppliers, specialized facilities, and years of process knowledge. Lockheed is investing to modernize more than 20 facilities and hiring 3,000 workers in its Missiles and Fire Control unit.

The question is how quickly orders become finished products and cash. Notably, CEO Jim Taiclet said Lockheed is integrating start-ups and new entrants into its own solutions. Lockheed wants to be the integrator, not the disrupted.

RTX: Patriot Demand Does the Heavy Lifting

RTX also raised guidance for the second straight quarter. Third-quarter adjusted sales rose 11% to $25 billion. Adjusted EPS of $2.26 beat the $1.78 estimate. The company lifted 2026 adjusted sales guidance to $97 billion to $97.5 billion and EPS guidance to $7.65 to $7.75.

Defense drove the bookings. RTX landed nearly $59 billion of defense awards in the quarter, a 4.57 book-to-bill ratio. Raytheon sales rose 14% on Patriot, Standard Missile, and Tomahawk volume. Total backlog reached a record $340 billion, up 36% year over year.

One nuance matters for the Golden Dome thesis. About $164 billion of that backlog is defense. The other $176 billion is commercial aerospace. That diversification is a strength, but it means investors shouldn't read the full figure as missile demand.

RTX has continued expanding capacity, including a $50 million expansion in Forest, Mississippi, completed in August to support radar programs. The RTX analyst forecasts on MarketBeat have a consensus price target of $231.24.

SpaceX: The New Entrant Already Collecting Checks

SpaceX is the clearest case of a newcomer turning Golden Dome headlines into contracts. The company has secured two Space Force awards totaling $6.45 billion for satellite communications and threat-tracking capabilities relevant to Golden Dome. That includes a $2.29 billion contract for a military data-network backbone and a $4.16 billion award for a space-based tracking system.

But Golden Dome is far from the only driver of SPCX stock. Third-quarter revenue rose 161% to $14.6 billion. The superintelligence (SI) segment, its AI compute business, generated $7.6 billion of that. Enterprise and government revenue grew 91%, with growth in Starshield and aviation services. Total backlog stood at $63 billion.

The growth of its AI business gives investors another way to value SPCX, beyond its role as a defense contractor. Supporting that, fourth-quarter CapEx is projected at $35 billion to $40 billion.

For SpaceX, the first contracts are the easy part. Scaling Starship launch cadence and delivering on defense timelines is the harder test. The next checkpoint is Starship Flight 15, when the company plans to attempt catches of both the booster and upper stage.