The Industrial Select Sector SPDR ETF broke decisively with the broader U.S. stock market on Thursday, advancing about 1.7% as investors rewarded a series of stronger-than-expected earnings reports from aerospace, defense, transportation and equipment companies.

The gain in XLI contrasted with a 1.2% decline in the S&P 500, a loss of nearly 1% in the Dow Jones Industrial Average and a drop of more than 2% in the Nasdaq Composite. The major indexes recorded their weakest session in roughly a month as investors reacted to falling shares of several large technology companies, a renewed surge in crude oil prices and higher Treasury yields.

The industrial ETF’s advance therefore represented more than a routine positive session. It showed that company-specific earnings strength could overcome a broadly risk-averse market environment and redirect attention toward sectors with visible order books, improving operating margins and exposure to government, infrastructure and manufacturing expenditure.

Investor’s Business Daily reported that XLI moved back into a technical buying area above a 177.72 breakout level. The move was supported by gains across several industrial groups rather than a single isolated stock, although aerospace and defense companies provided some of the most important contributions.

RTX, which accounted for approximately 4.7% of XLI before Thursday’s trading, climbed more than 7% after reporting second-quarter sales of $24.7 billion, an increase of 14% from a year earlier. Organic sales rose 16%, while adjusted earnings increased 21% to $1.89 a share. The company generated $2.9 billion in free cash flow during the quarter.

Management raised RTX’s full-year adjusted sales forecast to between $95 billion and $96 billion from a previous range of $92.5 billion to $93.5 billion. Its adjusted earnings projection increased to $7.10 to $7.25 a share, compared with an earlier range of $6.70 to $6.90. The company also lifted its free-cash-flow outlook.

Of particular significance for industrial investors, RTX reported a $289 billion backlog, up 22% from the prior year. That total included $170 billion of commercial orders and $119 billion of defense business, giving the company exposure to both the continued expansion of civil aviation activity and rising demand for military systems.

The results reinforced the importance of aerospace and defense within XLI. State Street data showed that the industry represented about 25.5% of the fund as of July 22, making it the ETF’s largest industry allocation. The category includes commercial aviation suppliers, aircraft manufacturers, defense contractors and producers of propulsion, missile and electronic systems.

Lockheed Martin, another XLI holding, gained more than 10% after reporting an 11% increase in quarterly sales to $20.1 billion. Net earnings reached $1.8 billion, or $7.94 a share, while free cash flow totaled $2.9 billion. The defense contractor recorded $65 billion of new orders, lifting its backlog to a record $230 billion, and raised its full-year financial outlook.

The company’s comparison with the prior-year period was affected by program losses recorded in the second quarter of 2025, but the combination of stronger sales, cash generation and new orders still gave investors evidence that demand was translating into measurable financial improvement. Aerospace and defense stocks have increasingly been judged not only on prospective government spending but also on whether manufacturers can expand production, secure components and convert backlogs into revenue and cash.

Transportation companies supplied another source of support. CSX, one of the major U.S. freight railroads, reported record second-quarter revenue of $3.94 billion, up 10% from a year earlier. Operating income increased 17% to $1.51 billion, and diluted earnings rose 23% to $0.54 a share.

CSX’s operating margin expanded by 240 basis points to 38.3%, while total volume increased 6%. Intermodal volume rose 9%, helping demonstrate that the earnings improvement was not based solely on pricing or cost reductions. The figures gave investors a read on physical goods movement across the U.S. economy at a time when the sustainability of industrial demand remains a central market question.

Shares of Norfolk Southern, United Rentals and other industrial companies also strengthened following earnings updates, according to Investor’s Business Daily. The participation of railroads and equipment suppliers broadened the rally beyond defense, an important consideration for investors evaluating whether Thursday’s move reflected a narrow response to geopolitical spending or a wider improvement in industrial fundamentals.

XLI’s portfolio structure explains why a group of positive earnings announcements can have a pronounced effect on the fund. State Street reported that the ETF held 81 stocks as of July 22. Caterpillar was its largest position at approximately 7.4%, followed by GE Aerospace at 6.4%, GE Vernova at 4.8% and RTX at 4.7%.

Other major positions included Union Pacific, Boeing, Eaton, Deere, Uber Technologies and Parker-Hannifin. Although XLI is diversified across dozens of securities, the largest companies can still have a substantial influence on daily performance, particularly when several large constituents move in the same direction.

Machinery accounted for about 21.2% of the fund, behind aerospace and defense. Electrical equipment represented approximately 13.7%, and ground transportation accounted for slightly more than 10%. The ETF also held building-products companies, professional-services providers, logistics businesses, engineering contractors, distributors and airlines.

This composition places XLI at the intersection of several investment themes. Defense manufacturers are benefiting from efforts by the United States and allied governments to replenish inventories and expand production capacity. Aerospace suppliers continue to receive support from commercial aircraft demand and aftermarket maintenance activity. Electrical-equipment and engineering companies are positioned around grid investment, data-center construction and factory expansion.

Railroads, logistics providers and equipment-rental companies offer a more direct view of construction, freight and general business activity. That range of exposures allows XLI to participate in multiple sources of capital spending, but it also means the fund is vulnerable when industrial production, trade volumes or corporate investment weaken.

Thursday’s rotation was especially notable because part of the broader market selloff was linked to investor concern about the amount of capital being committed to artificial intelligence. Large technology companies faced pressure as shareholders examined whether rising spending on computing infrastructure would reduce near-term free cash flow and margins.

For selected industrial companies, the same investment cycle may create revenue opportunities. Data centers require electrical systems, power-management equipment, backup generation, cooling infrastructure, engineering services and construction machinery. Technology companies may bear the cost of the spending, while industrial suppliers receive orders connected to the physical buildout.

The divergence does not mean every industrial company will benefit equally from artificial-intelligence expenditure. Competitive conditions, project timing, component availability and execution will determine how much revenue and profit reach individual suppliers. Nevertheless, the session illustrated why investors may seek exposure to the infrastructure side of the technology cycle rather than relying exclusively on software, semiconductor or internet-platform stocks.

The industrial rally also occurred despite macroeconomic conditions that would ordinarily pose challenges for the sector. Brent crude rose above $100 a barrel during Thursday’s session amid geopolitical concerns, increasing inflation anxiety and placing additional pressure on transportation-intensive businesses. Treasury yields moved higher, raising the cost of capital for companies and customers financing large projects.

Industrial equities are generally sensitive to changes in borrowing costs, fuel prices, trade policy and expectations for economic growth. Airlines and freight operators can face higher operating expenses when energy prices rise, while machinery and construction companies may experience weaker demand if financing conditions tighten. Thursday’s gains therefore reflected confidence in current earnings and guidance rather than the disappearance of those risks.

Valuation is another consideration. State Street reported a forward price-to-earnings ratio of 26.39 for XLI as of July 22 and a price-to-book ratio of 7.15. The fund’s estimated three-to-five-year earnings growth rate was 16.82%. Its 30-day SEC yield was 0.97%, and the annual gross expense ratio was 0.08%.

Those figures show that XLI is not simply a low-valuation alternative to technology. Strong performance in machinery, aerospace, defense and electrification-related companies has already lifted the price investors are paying for future earnings. The ETF’s market-value return was 20.03% in the first half of 2026 and 27.13% over the 12 months through June 30.

The fund managed approximately $32.6 billion as of July 22, making it one of the largest and most liquid U.S. sector ETFs. Its scale and narrow bid-ask spread allow institutional and individual investors to alter industrial exposure without trading a large portfolio of individual shares. Options are also available, supporting hedging and tactical positioning.

That liquidity can make XLI an efficient vehicle during periods of rapid sector rotation. Investors reducing exposure to technology or consumer-discretionary companies can use the ETF to obtain immediate access to industrial businesses. Conversely, the fund can be sold quickly when economic expectations deteriorate.

Price performance, however, should not automatically be described as an ETF flow. Thursday’s gain demonstrated relative demand for the securities in XLI, but it did not by itself establish that the fund experienced sustained net creations. Confirming a longer-term allocation shift will require creation and redemption data, trading-volume analysis and evidence that industrial funds continue to attract capital after the immediate earnings reactions fade.

Breadth will also be important. A durable industrial rotation would be stronger if gains extend beyond a handful of defense contractors and large capital-goods companies. Continued participation from railroads, logistics firms, building-products manufacturers, professional-services companies and smaller machinery suppliers would indicate that investors are pricing a more generalized improvement in business activity.

Upcoming earnings reports will provide further evidence. Investors will focus on order intake, backlog conversion, pricing, margins, supply-chain performance and capital-expenditure plans. Guidance increases supported by higher volumes and cash flow are likely to carry more weight than outlook upgrades dependent mainly on favorable comparisons or temporary cost reductions.

For ETF allocators, the July 23 session strengthened the argument for holding exposures that respond differently to earnings and interest-rate developments. Broad equity benchmarks remain heavily influenced by the largest technology companies, meaning disappointing reactions to a small number of megacap reports can dominate index performance even when other sectors are advancing.

XLI offers a direct way to reduce that concentration, but it introduces a different set of risks. The fund is focused on one economic sector, its largest industry groups and holdings have meaningful weights, and its companies remain exposed to business cycles, public spending decisions, fuel costs and geopolitical disruptions. State Street notes that sector funds can experience larger price fluctuations than more broadly diversified portfolios.

Thursday’s outperformance was therefore a meaningful signal rather than definitive confirmation of a new market regime. Strong earnings from RTX, Lockheed Martin, CSX and other companies showed that parts of the industrial economy are generating growth, cash and expanding order books even as the broader market confronts pressure from expensive technology investment, rising energy prices and higher yields.

Whether XLI can sustain its leadership will depend on the consistency of those results. Further guidance increases, broader earnings participation and documented ETF inflows would support the view that investors are making a durable allocation shift. Failure to maintain earnings momentum, or a sharper deterioration in financing and economic conditions, could instead reveal Thursday’s rally as a temporary refuge during a technology-led selloff.