BlockFills processed more than $61 billion in trading volume during 2025 — a 28% increase year-over-year — and had no shortage of institutional credibility, with backing from Susquehanna Private Equity Investments and CME Group’s venture arm. None of that was enough to prevent the Chicago-based Crypto trading and lending firm from filing for Chapter 11 bankruptcy protection in the U.S. Bankruptcy Court for the District of Delaware on March 15, marking one of the most significant institutional crypto failures of 2026 so far.
The operating entity, Reliz Ltd., along with three affiliated entities, submitted the voluntary petition on Sunday after what the company described as “extensive discussions with investors, clients, creditors, and other stakeholders.” According to the court filing, estimated assets sit between $50 million and $100 million, against estimated liabilities of $100 million to $500 million — a gap that reflects the scale of financial deterioration the firm had been quietly managing for months before the situation became public.
The timeline leading to the filing had been building since late 2025, when BlockFills was reportedly absorbing substantial losses from lending exposure to distressed crypto firms including Babel Finance and AEXA Digital. A separate expansion into crypto mining financing added another layer of strain, with declining asset prices and elevated operational costs reportedly contributing roughly $30 million in losses from that Business line alone. By the time the full picture emerged, the firm had lost approximately $75 million and was actively seeking emergency funding or a strategic buyer.
In February, the warning signs became impossible for clients to ignore. BlockFills suspended customer deposits and withdrawals, citing “recent market and financial conditions,” as the firm attempted to stabilize through stakeholder negotiations. The move immediately raised questions about the accessibility and safety of client funds held on the platform, particularly given that BlockFills served more than 2,000 institutional clients across more than 95 countries, including hedge funds, asset managers, market makers, and mining companies.
Legal pressure arrived almost immediately. Dominion Capital filed a lawsuit in late February accusing BlockFills of misappropriating customer assets and commingling client funds with company operating capital — a pattern that carries uncomfortable echoes of the Celsius and FTX collapses. Federal Judge Mary Kay Vyskocil of the Southern District of New York issued a temporary restraining order on March 3, freezing approximately 70.6 Bitcoin linked to the legal dispute and barring the firm from moving assets outside the United States.
The commingling allegations are arguably the most consequential element of this story for affected clients. In crypto bankruptcy proceedings, whether customer funds were held in segregated custody or pooled with company assets determines whether clients are treated as secured asset owners or unsecured general creditors — a distinction that has historically meant the difference between recovering most of what was deposited versus receiving cents on the dollar after years of legal proceedings. The FTX case’s eventual 118%-142% creditor recovery remains a rare outlier in a sector where bankruptcy outcomes have generally been bleak.
Leadership instability added to the uncertainty in the weeks before the filing. Co-founder and CEO Nicholas Hammer stepped down from his role amid the turmoil, with Joseph Perry taking over as interim CEO. The timing of his departure, mid-crisis and before any public resolution, underscored just how rapidly confidence in the firm’s management had eroded among investors and senior personnel alike.
In a statement released Sunday, BlockFills described the Chapter 11 process as “the most responsible path forward in order to preserve the value of the business and maximize recoveries for stakeholders.” The filing, the company added, “will allow the firm to implement an orderly restructuring while maintaining transparency and oversight through the court-supervised process,” with the stated intention of stabilizing the business, pursuing additional liquidity, and exploring potential strategic transactions. Despite the filing, BlockFills said its trading platform remained partially operational, allowing clients to open and close positions in certain spot and derivatives markets.
Whether the court process produces meaningful recoveries or mirrors the grim outcomes seen in earlier institutional crypto failures will depend heavily on how the commingling allegations are resolved and whether a strategic buyer emerges during restructuring. The gap between $50-100 million in assets and up to $500 million in liabilities suggests the margin for a recovery that satisfies institutional creditors is narrow, and the legal fight over what happened to client funds is likely to last considerably longer than the bankruptcy filing itself suggests.
BlockFills is the first prominent crypto firm to seek court protection since the current market downturn began, and its collapse comes at a moment when institutional participation in crypto lending was supposed to be maturing past the structural failures of 2022. That it happened to a firm with $61 billion in annual volume, blue-chip institutional backers, and a broad global client base is precisely the kind of outcome that will fuel calls for stricter custody and asset segregation standards across the institutional crypto sector.