HFT Solutions Technologies, LLC

HFT Solutions Technologies, LLC is a non-practicing entity (NPE) and a wholly-owned subsidiary of Network-1 Technologies, Inc. (NYSE: NTIP), a company focused on the acquisition, development, licensing, and protection of intellectual property. While HFT Solutions Technologies, LLC's specific headquarters are not publicly detailed, its parent company, Network-1 Technologies, Inc., is based in New Canaan, CT. HFT Solutions Technologies, LLC acquired its primary patent portfolio in March 2022.

The company operates solely as a patent assertion entity, with no independent products or services. Its "HFT Patent Portfolio" comprises eleven issued U.S. patents and two pending U.S. patent applications, acquired in March 2022. These patents relate to technologies integral to high-frequency trading (HFT), specifically focusing on field-programmable gate array (FPGA) hardware and clock domain management technology designed to achieve critical transaction latency gains in trading systems. HFT Solutions Technologies, LLC makes this portfolio available for licensing to firms utilizing FPGA systems for low-latency HFT activities.

HFT Solutions Technologies, LLC maintains an exclusively plaintiff-side patent litigation posture, having initiated two tracked cases and zero defendant cases. This aligns with its characterization as a patent assertion entity. The company's lawsuits are filed in the United States District Court for the Northern District of Illinois.

Most notably, HFT Solutions Technologies, LLC initiated patent infringement lawsuits on December 26, 2024, against prominent high-frequency trading firms, Citadel Securities, LLC and Jump Trading, LLC, in the United States District Court for the Northern District of Illinois. The litigation asserts infringement of U.S. Patent Nos. 10,931,286, 11,128,305, and 11,575,381, all titled "Field programmable gate array with external phase-locked loop." Citadel Securities has filed a counterclaim seeking declaratory judgment of non-infringement and invalidity of the asserted patents. Additionally, Citadel's motion to dismiss the case under 35 U.S.C. § 101, arguing patent-ineligible subject matter, was denied by the court on December 1, 2025.