Tether (USDT)
USDT is the dominant stablecoin by market cap and trading volume, with massive adoption especially in emerging markets and the Tron ecosystem. Its reserve composition has materially improved, with US Treasuries now comprising the vast majority of backing. However, persistent concerns around reserve transparency (attestations rather than audits), centralized freeze capabilities, regulatory non-compliance (MiCA delistings, no US license), and BVI jurisdiction keep the risk grade at C+. The stablecoin value grade of B reflects excellent peg stability and unmatched adoption breadth, offset by weak regulatory compliance and middling reserve transparency. USDT remains systemically important to crypto markets — its sheer scale means any disruption would have outsized cascading effects.
Top Risks
Tether operates as a centralized issuer with the ability to freeze and blacklist any USDT address at will. Over $3.3 billion has been frozen across 7,268+ addresses (2023-2025), with no judicial process required — a single law enforcement request from any of 275+ partner agencies suffices. This creates direct counterparty risk for all holders.
Reserve transparency remains a persistent concern. Tether publishes quarterly attestations (not full audits) by BDO Italia. While reserves have improved — now dominated by $135B in US Treasuries — historical controversies include the 2021 NYAG settlement ($18.5M fine for misrepresenting reserves) and prior reliance on commercial paper and secured loans ($14.6B still in secured loans as of Q3 2025).
Regulatory uncertainty is acute: Tether has refused to comply with EU MiCA regulations, leading to USDT delistings from major European exchanges (Binance, Kraken, Crypto.com) since March 2025. BVI-registered with no US money transmitter license, Tether faces jurisdictional risk across multiple regions. The July 2026 MiCA deadline could further fragment liquidity.