Lockheed Martin raised its sales and profit forecasts for 2026 on July 23, 2026, saying the Pentagon needs to restock weapons inventories. Shares rose 5.3% in early trading on the news. Two days earlier, on July 21, another major defense company, Northrop Grumman, had raised its own 2026 forecasts. But Northrop's shares fell 2.4% that day.

Why would shares fall after good news? Because investors had already pushed defense stocks to high prices relative to company profits. A price-to-earnings ratio (or P/E) compares a stock's price to the profit the company makes per share — think of it like paying $32 for every $1 of profit. As of early April 2026, the S&P 500 Aerospace & Defense sub-index (.SPLRCAERO) was trading at a P/E of roughly 32, which leaves little room for good news to push prices higher.

Behind these forecasts is a lot of government money. Congress approved $901 billion in U.S. defense spending for fiscal year 2026, per Reuters reporting from April. That is well below the $1.5 trillion President Trump demanded on January 8, 2026, but it is still a big increase over prior years. The Iran conflict also added to defense demand, contributing $28 billion by its 20th day, Bloomberg reported on March 19, 2026.

Space defense is a growing piece of the budget. U.S. defense space spending rose 7.7% from the prior year to $49.5 billion, according to Bloomberg data published July 22, 2025. The U.S. Space Force was requesting $12 billion in additional funds as of July 2026, per Federal News Network. That money flows partly to traditional defense companies and partly to newer commercial players, especially SpaceX.

SpaceX went from a private company to a public one quickly. Bloomberg reported on March 25, 2026 that the company could be valued at $900 billion and might stage the largest U.S. IPO. That offering has since happened. On July 28, 2026, CNBC reported that members of Congress bought SpaceX stock after the IPO, with purchases ranging from about $83,000 to $245,000 each.

The timing of those purchases matters. Lawmakers bought stock in a company whose value depends heavily on government contracts — satellite launches, Pentagon deployments, and Space Force budgets. Those same lawmakers oversee the spending bills that fund this work. That overlap is the kind of situation conflict-of-interest rules were designed to address. Whether those rules apply here, or were sidestepped through disclosure-only mechanisms, is a question the CNBC reporting raises but does not answer.

The bigger picture is that defense companies are seeing real, growing demand from wartime restocking, a willing Congress, and an expanding space budget. Lockheed and Northrop's raised forecasts confirm that orders are turning into actual revenue and profit. But the fact that Lockheed shares rose 5.3% while Northrop's fell 2.4% on similar news is a reminder that at a 32x P/E ratio, investors are already expecting strong performance. The question is whether $901 billion in spending — or any push toward Trump's $1.5 trillion figure — will grow revenues fast enough to justify today's high stock prices, or whether those prices will come back down as the cycle slows.

The SpaceX situation adds another layer. A $900 billion valuation means investors are betting not just on SpaceX's rocket launches and Starlink internet business, but on a steady stream of government contracts. When members of Congress buy that stock, they are essentially betting that federal space-defense spending will keep growing. The $12 billion Space Force request, the 7.7% growth in space spending, and the $901 billion defense total all support that bet.

The signal from the defense companies is clear: the restock cycle is real. The signal from Congress is harder to read. When legislators buy stock in a defense company whose value depends on the spending bills they write, the line between being well-informed and having privileged access gets blurry. The CNBC report documents the purchases; it does not allege wrongdoing. But for a market that already demands high prices for defense stocks, the optics do not help.