Trump Iran Stance, Global Stablecoin Rules Drive Crypto Policy Risk

Geopolitical risk and regulatory momentum dominated crypto market headlines over the past 24 hours, as President Trump signaled a tougher stance on Iran while lawmakers and regulators across the Americas moved to tighten — or clarify — rules around stablecoins, tokenized assets, and cross-border payments.

The developments landed against a backdrop of fragile risk sentiment: any escalation in the Middle East that threatens oil flows through the Strait of Hormuz can quickly spill into broader markets, influencing inflation expectations, dollar liquidity, and the appetite for high-beta assets such as cryptocurrencies.

Trump rejects Iran proposal, raises possibility of renewed strikes

President Trump said Friday, May 2 ET, that he was unlikely to accept a recent proposal from Iran and indicated that U.S. airstrikes could resume, according to remarks delivered during an interview at an airport in Florida and echoed on social media. Trump said the proposal would be reviewed soon but suggested it fell short of what the U.S. expected, arguing that Iran had not paid a sufficient price.

Earlier that day, Trump had told reporters he would provide more detail later regarding Iran’s latest offer. Local reporting described the proposal as a 14-point package delivered via Pakistan in response to a nine-point U.S. framework.

Iranian lawmaker: Hormuz transit should require Iranian approval

In a separate escalation risk for global energy and shipping markets, the head of a civil committee in Iran’s parliament said Saturday, May 3 UTC, that all traffic passing through the Strait of Hormuz should require Iran’s permission under a parliamentary management plan. The official also claimed Israeli-owned cargo should not be allowed to pass under any circumstances, and that hostile states that have engaged Iran should be barred until damages are paid.

The Strait of Hormuz is one of the world’s most critical chokepoints for crude exports and maritime logistics. Even without immediate operational changes, rhetoric around transit restrictions tends to increase volatility in oil and risk assets, a channel that crypto traders monitor closely as a proxy for broader macro stress.

Brazil central bank to ban crypto use in certain cross-border eFX payments

Brazil’s central bank will prohibit the use of stablecoins and cryptocurrencies such as Bitcoin (BTC) in cross-border settlements conducted by electronic foreign exchange (eFX) service providers starting Oct. 1, according to reporting cited by PANews. The measure targets fintechs and payment firms that have used crypto rails as a backend settlement mechanism for international remittances.

The restrictions do not ban individuals from buying or holding crypto, but they narrow how regulated payment channels can process FX-linked settlement. Under the new framework, eFX payments must be handled only through FX transaction accounts or non-resident real accounts, while unapproved providers will need to obtain central bank authorization by May 2027.

Market participants view the move as part of a broader push by Brazilian authorities to strengthen oversight of cross-border capital flows and the integrity of FX settlement infrastructure — a theme playing out globally as stablecoins become more integrated into payments.

U.S. Senate compromise may revive stalled stablecoin ‘Clarity Act’ debate

In Washington, a compromise on controversial language related to yield on stablecoins could accelerate progress on the long-stalled ‘Clarity Act,’ according to local reporting. Senators Thom Tillis and Angela Alsobrooks agreed on revised wording for Section 404, which would prohibit crypto firms from offering interest or yields that are economically and functionally equivalent to bank deposits, while still permitting activity-based incentives tied to actual platform usage.

Coinbase ($COIN) CEO Brian Armstrong urged the Senate Banking Committee to move quickly, and observers say the compromise could remove a major procedural obstacle that had kept the bill from advancing. The debate underscores how the line between ‘payments stablecoins’ and ‘yield-bearing instruments’ remains a central fault line for U.S. policy.

BlackRock challenges proposed OCC cap on tokenized reserve assets

BlackRock ($BLK) submitted comments to the U.S. Office of the Comptroller of the Currency opposing a draft rule that would cap tokenized reserve assets at 20%, arguing the limit could constrain growth for its tokenized money market product, the BUIDL fund, and related offerings, according to The Block.

BlackRock also asked regulators to clarify whether Treasury ETFs can qualify as reserve assets and urged inclusion of two-year floating-rate Treasuries in the list of eligible assets. The firm noted that BUIDL holdings represent a significant portion of reserves for products such as Ethena’s USDtb and Jupiter’s JupUSD.

The episode highlights how implementation details for stablecoin and reserve frameworks — not just headline legislation — can reshape market structure, influencing which collateral types become dominant and how quickly tokenized cash products scale.

Wasabi Protocol says unaffected EVM vault withdrawals restored after incident

Wasabi Protocol said withdrawals for users of unaffected EVM vaults have returned to normal as it continues responding to a security incident. The team said it is actively investigating but cannot yet disclose details, promising additional updates when possible.

Previously, on-chain security firm PeckShield estimated losses of roughly $5.5 million across multiple chains, citing signs consistent with an administrator private key compromise. Security incidents of this kind often reprice ‘smart contract risk’ across DeFi, especially for yield products and cross-chain vault systems.

SEC Chair Paul Atkins warns existing framework can’t keep up with crypto

SEC Chair Paul Atkins said the pace of crypto industry development is difficult to address under existing legal frameworks, according to remarks reported from the Bitcoin 2026 event in Las Vegas. Atkins also pointed to U.S. elections as a key driver of regulatory posture, saying the direction of agencies and rulemaking can shift materially based on electoral outcomes.

The comments add to expectations that U.S. digital asset oversight will increasingly be shaped through a mix of incremental rulemaking and congressional action, with stablecoin legislation and market structure bills serving as near-term tests of political alignment.

Ethereum Foundation says ‘Glamsterdam’ goals largely complete; targets higher gas limit floor

The Ethereum Foundation said three core goals of the ‘Glamsterdam’ upgrade are effectively complete and that the project is moving toward raising the gas limit floor to 200 million. More than 100 core developers met last week in Longyearbyen, Svalbard, to advance the work.

The key objectives included reaching alignment on a 200 million gas floor, implementing a stable external builder process for ePBS (enshrined Proposer-Builder Separation), and finalizing gas repricing parameters for EIP-8037. The Foundation said Glamsterdam is focused on safely increasing throughput by raising gas limits while managing execution time and state growth risks. EIP-8037, in particular, is intended to increase state creation costs to help prevent unchecked state expansion as throughput rises.

Developers said most clients are operating stably on glamsterdam-devnet-2 and that broader testing of the external builder process has been successful, providing groundwork to support higher gas limits. Progress was also reported on FOCIL, native account abstraction, and features planned for the future ‘Hegota’ upgrade, with further security hardening and code merges expected in the coming weeks.

Argentina proposes expanded rules for tokenization and DLT-based trading

Argentina’s National Securities Commission (CNV) proposed General Resolution No. 1137 to revise tokenization rules for real-world assets (RWA) and expand the scope of financial instruments that can be traded using distributed ledger technology, according to CriptoNoticias. The proposal would remove limitations that previously allowed only certain ‘digital representations’ of instruments and would permit all closed-end funds with automatic public offering approval to be converted into digital asset form.

The CNV also plans to extend its regulatory sandbox through Dec. 31, 2027, allowing fintech firms to test new business models involving digital currency and Bitcoin-related technology outside standard regulatory constraints. The initiative signals Argentina’s intent to bring tokenization deeper into the regulated perimeter while encouraging experimentation.

Polymarket April fees reportedly doubled to $43.36 million

Prediction market Polymarket generated $43.36 million in fees in April, more than double the prior month, according to data cited by Wu Blockchain from DeFiLlama and DeFi Oasis. Annualized, the figure implies a run rate of roughly $520 million.

The growth points to accelerating adoption of on-chain prediction markets as a high-engagement crypto use case, particularly during periods of elevated political and macro uncertainty. As regulatory debates intensify around stablecoins and market structure, rising volumes in prediction platforms may further draw attention to how on-chain venues handle compliance, settlement, and user access across jurisdictions.

Taken together, the day’s headlines illustrate a market increasingly shaped by ‘policy risk’ and ‘infrastructure regulation’ as much as by technology cycles — with geopolitics, stablecoin rules, and tokenization standards all feeding into the next phase of crypto’s integration with global finance.