Fed Rate Hike Hits US Stocks as Dow Drops 631 Points; Why SpaceX Stock Jumped 5%

Key Takeaways

• The Federal Reserve raised its target rate by 25 basis points to 3.75%–4.00%, its first increase since 2023, as inflation remained above target.
• The Dow fell 631.21 points, or 1.21%, while the S&P 500 lost 0.45% and the Nasdaq Composite edged down 0.01%.
• SpaceX stock rose 5.15% to $150.88 as investors focused on the September 22 Starship Flight 14 test and anticipated index-related demand.

Fed Rate Hike Pushes Wall Street Lower

US stocks closed lower on Wednesday after the Federal Reserve raised interest rates for the first time in roughly three years and left the door open to further tightening. The decision pressured rate-sensitive assets, lifted Treasury yields and reinforced concerns that borrowing costs could remain elevated for longer than investors had previously expected.

The Federal Open Market Committee increased the federal funds target range by 25 basis points to 3.75%–4.00%. The vote was unanimous. Policymakers said economic activity continued to expand at a solid pace, supported by resilient domestic spending, strong productivity and robust capital investment. However, they also described inflation as elevated and said tighter policy would support a more timely return to the 2% target.

The Dow Jones Industrial Average recorded the largest decline among the three major benchmarks, falling 631.21 points, or 1.21%, to 51,461.90. The S&P 500 declined 33.92 points, or 0.45%, to 7,551.81. The Nasdaq Composite was comparatively resilient, slipping just 3.15 points, or 0.01%, to 25,978.42.

Wall Street broadly weakened, but the session was not an equal sell-off across all three indexes. The Nasdaq’s near-flat close reflected strength in selected technology shares, including SpaceX.

Why the Federal Reserve’s Guidance Mattered

The quarter-point increase was largely anticipated. The larger market surprise came from the Fed’s projections and the prospect that September’s move may not be the final increase of 2026.

The central bank’s updated projections put the median federal funds rate at 4.1% at the end of 2026, up from a 3.8% median forecast in June. Twelve of the 18 participants projected a year-end midpoint of 4.125%, a level consistent with one additional quarter-point increase from the new 3.75%–4.00% range. Four participants projected 4.375%, while two expected the midpoint to remain at 3.875%.

Officials also lifted their median 2026 economic growth estimate to 2.3% and lowered the projected unemployment rate to 4.1%. At the same time, they raised the median forecast for headline personal consumption expenditures inflation to 3.7% and core PCE inflation to 3.4%.

That combination—firmer growth, a stable labour market and persistent inflation—gives the Fed room to maintain restrictive policy. Higher Treasury yields can increase financing costs and reduce the present value of future corporate earnings, placing particular pressure on richly valued growth companies.

Why SpaceX Stock Rose 5.15%

source: googlefinance

SpaceX moved sharply against the broader market, gaining 5.15% to close at $150.88. The advance returned the shares above the $150 level, close to their opening price on the first day of public trading in June and well above the $135 IPO price.

The clearest company-specific catalyst was the announcement that Starship Flight 14 was targeted for September 22. The planned mission represents another important test of the reusable launch system at the centre of SpaceX’s long-term strategy.

The flight is expected to attempt a longer orbital mission and support further testing of Starship’s ability to deploy next-generation Starlink satellites. A successful test could strengthen confidence in the company’s plans to increase payload capacity, lower launch costs and expand the Starlink network. These goals remain central to the market’s long-term assessment of SpaceX because Starship is designed to connect the company’s launch, satellite communications and future space-infrastructure ambitions.

Starship remains an experimental system, and technical delays, regulatory constraints or an unsuccessful test could reverse part of the optimism reflected in the share price.

Nasdaq-100 Rebalancing Adds a Second Catalyst

Expected changes to SpaceX’s Nasdaq-100 weighting also contributed to interest in the shares. Market estimates suggested the company’s weighting could rise materially during the September quarterly rebalance as a larger portion of its shares became available for public trading following the IPO.

An increased index weighting matters because funds designed to track the Nasdaq-100 must adjust their holdings to limit tracking error. That can generate temporary demand around the effective date of a rebalance. Traders may also buy in advance when they expect passive funds to add shares.

However, the precise effect on the stock is uncertain. Anticipated index buying can be partly reflected in the price before the rebalance occurs. Short-term investors may also sell into the closing auction once passive demand arrives. Index-related flows therefore provide a plausible technical catalyst, but they do not determine the company’s long-term value.

SpaceX’s 5.15% rise likely reflected a combination of the Starship test schedule, rebalance expectations and short-term positioning rather than one isolated factor.

SpaceX Rally Does Not Eliminate Valuation Risk

SpaceX’s ability to rally on a difficult day for US equities highlights the power of company-specific developments, but it does not make the shares immune to higher rates. The company completed its public offering at $135 per share on June 12, selling 555.6 million Class A shares and raising approximately $75 billion before the overallotment option.

A high valuation makes future operating performance especially important. Investors will continue to assess launch reliability, Starlink growth, capital expenditure, cash generation and Starship’s progress toward commercial use. Higher bond yields could also raise the return demanded from stocks whose valuations depend heavily on distant earnings.

What Traders Should Watch Next

The September 22 Starship flight is the most immediate company-specific event. The market will focus on whether the launch proceeds on schedule, whether the vehicle completes its planned objectives and whether the test produces evidence of improved reliability.

Before then, the Nasdaq-100 rebalance could increase trading volume and volatility. Investors should distinguish temporary index-tracking flows from developments that change the company’s long-term outlook.

For the broader market, inflation data, Treasury yields and further comments from Fed officials will remain central. The September projections imply that another 2026 rate increase is a realistic possibility, but the path is not predetermined. Softer inflation could reduce the need for additional tightening, while renewed price pressure or stronger-than-expected demand could reinforce the case for another move.

SpaceX’s rally showed that a strong corporate catalyst can overcome a negative macro session. Whether the move is sustained will depend less on one day of relative strength and more on Starship execution, Starlink expansion, index-flow dynamics and the wider cost-of-capital environment.