America's largest banks are pouring capital into investment banking and trading operations at unprecedented levels, raising fresh questions about whether post-crisis regulations have inadvertently created new systemic risks. JPMorgan Chase has allocated $175 billion to investment banking and markets—more than double the $80 billion deployed at the end of 2019—while assets in its trading operations topped $1 trillion for the first time this year, according to a Reuters Breakingviews column by Stephen Gandel published July 14, 2026.
The shift reflects a fundamental transformation of Wall Street's business model. JPMorgan's second-quarter earnings jumped 41% year-over-year, driven almost entirely by investment banking gains rather than traditional consumer banking, which grew just 3%. Wells Fargo reported investment-banking and stock-trading revenue surges of 36% and 64% respectively. Bank of America increased capital dedicated to its trading unit to nearly $54 billion from $38 billion five years ago.
The Regulatory Paradox
Regulations instituted after the 2008 financial crisis were designed to make banks safer. Instead, they've pushed traditional lenders away from bread-and-butter lending and toward higher-risk trading activities. Non-bank lenders captured market share in credit markets, prompting established financial titans to redirect resources into investment banking and trading. The pandemic-era burst of IPO underwriting and trading activity accelerated the trend, and it hasn't slowed.
Geopolitical uncertainty and artificial intelligence's rise are keeping markets volatile and active. Companies need massive capital for data centers and AI infrastructure. JPMorgan's investment banking fees rose 45% in the quarter, while equity trading revenue jumped 86%. These aren't marginal gains—they're the new core business.
Capital Rules Favor Trading
Here's the problem: post-crisis regulations focus primarily on lending and credit exposure. Trading assets often carry lower capital requirements than traditional loans. Banks discovered they could generate higher returns with less regulatory burden by shifting toward markets activity. It's rational business strategy meeting perverse regulatory incentives.
Basel III's endgame rules would require banks to hold more capital against operational hazards associated with large trading desks and payment businesses. Banks continue to fight such changes. They argue the rules would constrain their ability to serve clients and compete globally. Regulators counter that concentrated risk in trading operations could trigger the next crisis.
Convergence Risk
Wall Street is converging on the same model. When JPMorgan, Bank of America, and Wells Fargo all pile into the same business lines, systemic risk increases. The more alike banks become, the greater the chance they sink together if markets turn. It's the opposite of diversification—the fundamental principle of risk management.
The column noted that blockbuster IPOs like SpaceX and volatile markets are currently rewarding this strategy. But market conditions change. When they do, regulators may discover they've created exactly the kind of concentrated risk they sought to eliminate 18 years ago.
Why This Matters:
This transformation reveals a fundamental failure of post-crisis financial regulation. Policymakers designed rules to prevent another 2008-style meltdown by constraining risky lending. Instead, they've channeled the world's largest financial institutions into a different kind of risk concentration—one centered on trading and investment banking rather than loans. The regulatory framework treats trading assets as safer than traditional lending, creating incentives that push banks toward market activities requiring less capital. When all major banks adopt identical strategies, the financial system becomes more fragile, not less. If markets turn sharply, regulators may face the crisis they thought they'd prevented, only in a different form. The banks' resistance to Basel III endgame rules suggests they understand the current arrangement works in their favor, even if it doesn't serve broader financial stability.