Charles Schwab Corporation (NYSE: SCHW) shares fell approximately 2.7% on Thursday, October 15, 2026, after the financial services giant reported record third-quarter earnings but signaled that revenue growth and net interest margin would likely finish near the lower ends of its previous full-year forecasts. The stock declined as investors weighed strong customer asset inflows and higher profits against concerns about funding costs, interest income, and the company’s near-term financial outlook.

Schwab shares dropped nearly 5% during morning trading before recovering part of their losses later in the session. The decline followed the company’s premarket earnings announcement and subsequent business update, during which executives discussed changing funding requirements and the financial consequences of rapidly expanding customer lending activity.

The Westlake, Texas-based company reported third-quarter net revenue of $7.171 billion, an increase of 17% from $6.135 billion during the same period in 2025. Although the result represented a quarterly record, it fell slightly below some Wall Street estimates, which placed expected revenue around $7.18 billion to $7.20 billion.

Profitability exceeded expectations. Adjusted earnings per share increased 29% year over year to $1.69, compared with analyst forecasts of approximately $1.65 to $1.66. Generally accepted accounting principles earnings reached $1.62 per share, while quarterly net income rose 23% to approximately $2.9 billion.

These results demonstrated continued growth across Schwab’s investment services platform. Nevertheless, investors focused heavily on forward guidance rather than the earnings beat, reflecting concerns that the company’s improving profitability may progress more slowly than previously anticipated.

The most significant source of disappointment came from management’s comments about full-year financial expectations. During the company’s October 15 business update, Chief Financial Officer Mike Verdeschi explained that lending growth had outpaced deposit growth during 2026, increasing Schwab’s use of alternative funding sources to support customer borrowing.

Verdeschi indicated that annual revenue growth and net interest margin would likely finish toward the lower ends of guidance ranges established during the company’s summer business update. Those earlier expectations called for annual revenue growth between 17.5% and 18.5%, alongside a full-year net interest margin between 3.00% and 3.10%.

For Wall Street, that guidance mattered because Schwab’s ability to generate interest income depends partly on the relationship between interest earned on loans and investments and the cost of funding those assets. When lending expands more rapidly than customer deposits, a financial institution may need to rely more heavily on alternative sources of financing.

Such funding can carry different costs from ordinary customer deposits, potentially limiting the benefit of higher asset yields. Schwab’s net interest margin improved to 3.04% during the third quarter, but investors appeared concerned about whether further expansion would meet earlier expectations.

The company’s net interest revenue reached approximately $3.48 billion, up from $3.05 billion one year earlier. That increase demonstrated substantial annual improvement, although some analysts had anticipated stronger interest-related performance. The combination of revenue slightly below expectations and guidance toward the lower end of previous forecasts contributed to the negative market reaction.

Despite these concerns, customer activity remained one of the strongest parts of Schwab’s quarterly report. The company attracted a record $190.4 billion in core net new assets, representing a 38% increase from the comparable quarter in 2025. The figure measures new customer assets entering the platform after accounting for withdrawals and other relevant asset movements.

Schwab also reported that customers opened approximately 1.2 million new brokerage accounts during the quarter. Total client accounts reached 48.6 million, while total client assets increased 15% from a year earlier to $13.33 trillion.

For a brokerage company whose business depends heavily on attracting and retaining investors, those numbers provide an important measure of competitive strength. Rising account balances and continued customer acquisition can support future revenue from advisory services, securities transactions, asset management, and lending.

Trading activity also expanded significantly. Daily average trading volume reached approximately 10.7 million transactions, up 44% year over year. Trading revenue increased 16% to approximately $1.16 billion, reflecting stronger engagement among customers using Schwab’s brokerage platforms.

The wealth management business contributed additional growth. Asset management and administration fees climbed 14% to approximately $1.91 billion, while net flows into Schwab Wealth Advisory increased 55% compared with the third quarter of 2025. The results indicated that the company was generating more business from clients seeking investment management and financial planning services.

Customer borrowing was another major growth driver. Schwab reported bank loan balances of $72.3 billion at the end of September, representing a 35% annual increase. Pledged Asset Line balances, which allow eligible customers to borrow against investment holdings, rose 59% to $37.3 billion.

Margin loan balances also increased, reaching $187.9 billion at quarter-end, including lending associated with long-short investment strategies. Strong borrowing demand creates opportunities for Schwab to expand interest revenue, but it also increases the importance of maintaining sufficient and economically attractive funding.

Management identified particularly strong demand for tax-focused long-short strategies offered through independent financial advisors. Chief Executive Officer Rick Wurster said demand had grown faster than originally anticipated, prompting Schwab to moderate the pace of expansion during September by adjusting participation requirements.

The company is working on additional ways to support demand for these strategies while managing capacity and funding requirements. Executives said the adjustments had not produced clear signs of weakening net new asset momentum within the advisor services business.

For investors, the issue is not simply whether customers continue bringing assets to Schwab. It is whether the company can translate those inflows into profitable growth without allowing the cost of supporting lending and other balance-sheet activities to erode the resulting earnings benefits.

Capital management attracted scrutiny as well. Schwab repurchased approximately 4.7 million shares for $500 million during the third quarter. Although buybacks can support per-share earnings by reducing shares outstanding, some market observers had expected greater repurchase activity.

The company emphasized that its capital allocation priorities remain focused on maintaining financial strength, supporting customer demand, investing in strategic initiatives, and returning excess capital when appropriate. Schwab reported a preliminary consolidated Tier 1 leverage ratio of 8.9% and an adjusted Tier 1 leverage ratio of 7.0%.

Management also offered a favorable outlook for operating efficiency. Adjusted expenses increased 9% year over year, a considerably slower pace than revenue growth. Schwab expects expenses to finish near the lower end of its earlier annual forecast and projected approximately 800 basis points of positive operating leverage for 2026.

Positive operating leverage occurs when revenue grows faster than expenses. The company’s projection suggests that management continues to expect meaningful efficiency improvements, even as the revenue and interest-margin outlook becomes somewhat more conservative.

The broader interest-rate environment remains an important variable. Changes in Federal Reserve policy and Treasury yields influence the economics of brokerage cash balances, customer borrowing, investment portfolios, and competing deposit products. Higher rates can improve returns on some interest-earning assets while simultaneously increasing financing costs or encouraging customers to pursue higher-yielding alternatives.

Schwab executives argued that the company remains positioned to benefit from higher rates overall, but the interaction between deposit growth, lending demand, and funding composition continues to shape its near-term financial performance.

The October 15 decline therefore reflected a reassessment of future expectations rather than evidence of a broad deterioration in customer demand. Schwab generated record quarterly earnings, attracted substantial new assets, expanded lending, and increased trading activity. However, those achievements did not fully offset concerns about interest-margin performance and the pace of revenue growth through year-end.

Looking ahead, investors will monitor fourth-quarter revenue, changes in net interest margin, customer cash balances, the composition of Schwab’s funding sources, and its ability to maintain asset-gathering momentum. The company’s next detailed financial outlook, expected during its winter business update in January, could provide additional clarity on the outlook for 2027.

For now, Schwab’s October 15 stock decline underscores a familiar dynamic in financial markets: record profits and strong customer growth do not necessarily translate into higher share prices when investors believe future financial performance may fall short of earlier expectations.