Monday offered the kind of energy relief businesses had been waiting for. Brent settled near $105, down about 7.6%, as diplomacy raised hopes of less disruption to Middle Eastern supplies. If sustained, cheaper fuel would leave households more to spend elsewhere and reduce costs for transport and other energy-intensive businesses. The benefit takes time to reach customers, but the direction is encouraging.

That relief could not carry technology shares through the session. The S&P 500 surrendered an early advance and the Nasdaq finished lower, even as most Wall Street shares rose. A lower fuel bill helps the wider economy. Cloud businesses can generate strong profits while spending heavily on their next phase of expansion. For existing shareholders, the question is whether that expansion will deliver enough additional earnings and cash flow to justify the investment, any share dilution and additional debt.

Oracle made that distinction concrete. It filed plans to raise $20 billion, split between new shares and debt. The proceeds are available for several corporate purposes, including capital expenditure and debt repayment; they are not all earmarked for new AI projects. For existing shareholders, however, the financing still matters. New shares spread ownership across more investors, while new debt brings interest payments. Growth must earn enough to justify those costs.

Marvell’s proposed acquisition of Lumentum presents another version of the same test. The all-stock agreement has an implied enterprise value of $115 billion and would combine chip and optical technologies used to move data around AI systems. The industrial logic is credible: faster computing needs faster connections. But strategic importance does not establish an attractive purchase price. Marvell and Lumentum shares both fell sharply as investors weighed the deal.

Our preference remains selective exposure to AI infrastructure, with closer attention to what each company is buying and how it intends to pay. Lower energy costs can improve margins and reduce one source of inflation pressure. They cannot guarantee that an acquisition, a new server hall or a share issue will create value. For investors, the useful question is whether the next dollar committed is likely to produce a worthwhile return—not simply whether the industry will grow.