Report: US Officials Are Probing Tether Role in Bitcoin Market Manipulation
The U.S. DOJ is reportedly probing Tether and Bitfinex over whether they artificially boosted bitcoin's price using the USDT stablecoin.

The U.S. Department of Justice (DOJ) is increasingly focusing a months-long investigation into crypto market manipulation on the tether stablecoin, a report says.
Citing individuals familiar with the probe, Bloomberg reported Tuesday that the DOJ is looking into whether crypto exchange Bitfinex and Tether Ltd. have pushed bitcoin's price up using the stablecoin. Specific details of the investigation were not shared, and no accusations of wrongdoing have yet been made.
However, concerns about tether have long existed in the public sphere, with researchers at the University of Austin publishing a study this summer linking the stablecoin's issuance with bitcoin's 2017 price pumps.
The two found that even a small amount of tether used to buy bitcoin would help prop up the world's oldest cryptocurrency's price.
The CFTC has already subpoenaed Bitfinex and Tether, although it is unclear what information the regulator sought in those subpoenas.
A Freedom of Information Act (FOIA) request sent to the regulator by CoinDesk asking for information about the subpoenas was denied due to a number of exemptions, including ones related to law enforcement investigations.
The DOJ first began its criminal investigation this past May alongside the Commodity Futures Trading Commission (CFTC). At the time, the DOJ was reportedly looking into spoofing – the use of large volumes of fake orders to influence market prices – as well as whether traders were faking volume to trick other investors into participating in the market.
Representatives for Bitfinex and Tether, as well as the DOJ and the CFTC, did not immediately respond to a request for comment.
Department of Justice logo via Mark Van Scyoc / Shutterstock
Больше для вас
Protocol Research: GoPlus Security

Что нужно знать:
- As of October 2025, GoPlus has generated $4.7M in total revenue across its product lines. The GoPlus App is the primary revenue driver, contributing $2.5M (approx. 53%), followed by the SafeToken Protocol at $1.7M.
- GoPlus Intelligence's Token Security API averaged 717 million monthly calls year-to-date in 2025 , with a peak of nearly 1 billion calls in February 2025. Total blockchain-level requests, including transaction simulations, averaged an additional 350 million per month.
- Since its January 2025 launch , the $GPS token has registered over $5B in total spot volume and $10B in derivatives volume in 2025. Monthly spot volume peaked in March 2025 at over $1.1B , while derivatives volume peaked the same month at over $4B.
Больше для вас
IMF Flags Stablecoins as Source of Risk to Emerging Markets, Experts Say We Aren't There Yet

The IMF warns that USD-pegged stablecoins could undermine local currencies in emerging markets by facilitating currency substitution and capital outflows.
Что нужно знать:
- The IMF warns that USD-pegged stablecoins could undermine local currencies in emerging markets by facilitating currency substitution and capital outflows.
- Despite concerns, experts argue that the stablecoin market is still too small to have a significant macroeconomic impact.
- Stablecoins are primarily used for crypto trading, and their market size remains small compared to global currency flows.











