Vise Expands Custodial Support for Tax-Aware Long-Short Strategies as Major Players Throttle Access

Vise, the AI-powered portfolio management platform designed for registered investment advisors (RIAs), has announced a strategic expansion of its custodial network, adding Interactive Brokers to its roster of partners. This move provides advisors with a crucial new venue to deploy the platform’s tax-aware long-short (TALS) strategies, offering a vital alternative at a time when the industry’s largest custodians are increasingly limiting access to these high-demand investment vehicles.

The integration with Interactive Brokers is comprehensive. Vise confirmed that advisors can now implement its full suite of long-short strategies across all four leverage tiers—ranging from the conservative 130/30 configuration to the more aggressive 250/150 settings. This development is particularly significant for firms that have found themselves locked out of higher-leverage options at major incumbents, where new account openings for such strategies have either been suspended or subjected to prohibitive barriers.

By onboarding with Interactive Brokers, Vise further solidifies its footprint in the wealth management ecosystem. Interactive Brokers now joins a diverse group of existing custodians on the Vise platform, including Charles Schwab, Fidelity, Goldman Sachs Custody Solutions, Raymond James, TradePMR, and Altruist. Vise, which reported an impressive $160 billion in platform assets across more than 245,000 accounts as of October, noted that the onboarding process for the new custodial relationship is fully digital and generally requires a two-week turnaround time for advisors.

Understanding the Mechanics of TALS

At its core, the tax-aware long-short strategy represents a sophisticated evolution of direct indexing. By constructing a portfolio that holds a core of high-conviction stocks expected to outperform the market while simultaneously taking short positions in securities anticipated to underperform, the strategy maintains a net market exposure of 100%. This structure is designed to isolate alpha while mitigating systematic risk.

The primary appeal for advisors and their high-net-worth clients lies in the tax management capabilities. Because the strategy involves a mix of long and short positions, it creates a unique environment for daily tax-loss harvesting. Even in markets characterized by persistent growth—where traditional long-only portfolios offer few opportunities to harvest losses—the TALS approach can identify and capitalize on individual positions trading at a loss. This allows advisors to unlock significant tax savings, which can be particularly transformative for clients managing substantial embedded gains, such as those resulting from concentrated stock positions or the proceeds of a business sale.

"Long-short has historically been treated as a product for a select few," observed Samir Vasavada, co-founder and co-head of Vise. "The problem it addresses, however, is not exclusive to the ultra-wealthy. Plenty of clients are sitting on a concentrated position or a large embedded gain, and these strategies provide a systematic way to manage those liabilities."

The Custodial Bottleneck: Why Access is Tightening

While the demand for tax alpha is clearly rising, the ability to deliver these strategies has been hampered by a tightening of access at the industry’s largest custodians. Over the past year, the landscape has shifted from open availability to a environment defined by strict caps and high thresholds.

Fidelity, for instance, set a precedent in December of last year when it ceased opening and funding new long-short separately managed accounts (SMAs). The firm later implemented cost increases for existing clients, signaling a pivot in how it manages the operational and risk implications of these strategies.

Charles Schwab, a dominant force in the RIA space, has been even more aggressive in its approach to throttling growth. In April, the firm capped the TALS strategy at 30% of an RIA’s total assets held on its platform. By September, Schwab had further tightened the reins, raising the minimum investment requirement for new tax-aware long-short accounts from $1 million to $10 million. Perhaps most significantly, the firm ceased accepting new clients or fresh capital into its higher-leverage portfolio margin accounts.

This move was not a mystery to the industry. During its Q3 2026 earnings call, Schwab disclosed that of the $187.9 billion in total client margin loans on its balance sheet, $60.7 billion was directly tied to TALS strategies. CEO Rick Wurster addressed the decision plainly, noting that it was essential for the firm to throttle growth to ensure it could maintain operational stability and capacity. For custodians, the complexity of managing the margin and collateral requirements associated with these strategies at scale has become a significant enterprise risk management challenge.

This systemic restriction has forced a period of industry-wide reassessment. RIAs and asset managers are currently navigating a landscape where their preferred strategies are no longer universally available, leading many firms to move accounts between custodians in a search for the operational flexibility required to execute their tax-alpha mandates.

The Persistent Demand for Tax Alpha

Despite the operational friction at major custodians, the appetite for tax-efficient investing remains at an all-time high. According to the most recent independent advisor outlook survey conducted by Schwab, 90% of responding advisors currently offer some form of tax-efficient investment solution, while an additional 4% intend to introduce these capabilities within the next three years. A overwhelming 93% of advisors cited the improvement of tax efficiency as a top priority for their client portfolios.

Jalina Kerr, head of Advisor Experience at Schwab Advisor Services, acknowledged this shift in client-advisor dynamics. "Advisors are expanding what they offer—alternatives, private markets, tax-smart strategies—and the good news is that clients are ready for that conversation," Kerr said. "They’re focused on the long term, and they want to know how these strategies serve them."

The data supports this narrative of rapid expansion. Tracking by industry research firm Cerulli Associates indicates that by the first quarter of 2026, TALS had become the seventh-largest SMA asset class, reaching $116.5 billion in assets. Meanwhile, the broader direct indexing category has crossed the $1 trillion milestone, settling at approximately $1.2 trillion.

For the second consecutive year, Cerulli found that improving tax management capabilities ranked as the top development priority among managed account platform sponsors. This focus on tax-centric innovation reflects a maturing market where advisors are shifting away from the uncertainty of stock selection toward the more predictable, quantifiable benefits of tax optimization.

"While security selection is always encumbered by the reality that past performance is no indicator of future returns," said Scott Smith, a senior director at Cerulli, "tax optimization capabilities are a much more reliable and tangible source of post-tax alpha."

As custodians continue to balance the operational requirements of these strategies against the surging demand from the advisory community, the move by platforms like Vise to offer wider custodial integration highlights the ongoing tug-of-war between the necessity of robust risk management and the client-driven imperative to deliver superior after-tax returns. For now, the integration with Interactive Brokers provides a necessary bridge for advisors determined to continue deploying these strategies for their clients, ensuring that the momentum behind tax-alpha strategies remains unchecked despite the constraints of the traditional custodial environment.