Datavault AI Stock Falls 50% After Firm Cannot Access Bitcoin Holdings
The inability to withdraw Bitcoin held on a third-party exchange has forced a $92.2 million asset restatement, illustrating custodial risk that US investors in Bitcoin treasury companies now face...
Datavault AI, a company that adopted a Bitcoin treasury strategy, saw its share price fall 50% on October 28, 2026, after the firm disclosed it cannot withdraw Bitcoin held on the Biconomy exchange, according to reporting by CoinDesk.
The company said the access failure will require an accounting correction that cuts its reported assets by $92.2 million as of the end of fiscal year 2025, according to the same CoinDesk report. The magnitude of that restatement relative to the share price decline of 50% in a single session indicates the market priced the disclosed inaccessibility as a near-total impairment of those holdings.
Biconomy is the exchange named by Datavault AI as the platform holding the Bitcoin that cannot be withdrawn. The specific reason the withdrawal cannot be completed was not detailed in available public disclosures as of the date of this article. What would clarify the situation is a formal regulatory filing from Datavault AI, a statement from Biconomy, or proceedings initiated by a financial regulator with jurisdiction over either party.
The episode is directly relevant to US investors because Bitcoin treasury companies, including Datavault AI, are accessible to US-based shareholders and are part of an investment category that has grown alongside the expansion of US spot Bitcoin exchange-traded funds. US spot Bitcoin ETFs recorded $176 million in inflows on a single day and $286 million over two consecutive days in late October 2026, according to CoinTelegraph, narrowing October's net outflows for those products to $26 million. That inflow data signals continued US investor appetite for Bitcoin exposure, making the custodial risks illustrated by Datavault AI's disclosure a material concern for that investor base.
The Bitcoin treasury company model, in which a publicly traded firm holds Bitcoin as a primary or significant balance sheet asset, gained broad attention after MicroStrategy, now rebranded as Strategy, began accumulating Bitcoin in August 2020, as documented in its SEC filings. Datavault AI represents a smaller firm following a similar structure but relying on a third-party exchange rather than direct custody arrangements that larger treasury companies have disclosed.
The distinction between exchange custody and self-custody or institutional-grade custody is central to the risk the Datavault AI case illustrates. When Bitcoin is held on an exchange, the holder's access is contingent on the exchange's operational continuity and withdrawal functionality. When access is blocked, the asset cannot be moved, sold, or collateralized regardless of its market value at the time.
The $92.2 million asset restatement figure covers the end of calendar year 2025, meaning the discrepancy between the reported asset value and the accessible asset value persisted on the books for a period before the public disclosure made on October 28, 2026. The timeline between the origination of the access problem and the date of public disclosure is not established in currently available public records.
A separate and unrelated technical disclosure issued in October 2026 identified two library bugs in Bitcoin application software that can cause applications importing Partially Signed Bitcoin Transactions, known as PSBTs, to miscalculate miner fees and bypass excessive-fee warnings, according to CryptoSlate. That vulnerability affects a different layer of the Bitcoin ecosystem than the custodial issue at Datavault AI but contributes to a backdrop in which technical and operational risks across the Bitcoin infrastructure remain active concerns for market participants.
For US investors evaluating Bitcoin treasury companies as a proxy for Bitcoin exposure, the Datavault AI case provides a concrete example of how exchange-held assets can become inaccessible without prior warning and without an immediate legal remedy being publicly apparent. The 50% single-session price decline reflects the market's assessment that inaccessibility of the core asset is equivalent to a severe impairment, even if legal ownership of the Bitcoin is not formally in dispute.
No US regulatory action related to the Datavault AI disclosure had been publicly announced as of October 28, 2026. Whether the SEC, the CFTC, or any other US regulatory body with jurisdiction over securities or commodities will review the disclosure or the timeline of events surrounding it remains unknown pending any formal agency statement.