Implemented Third-party Verification of “arrowhead4.0,”
A New Stock Trading System Which Supports the Extended Trading Hours of the Tokyo Stock Exchange
Leveraging Unique Testing Methods and Quality Perspectives to Contribute to
Quality Enhancement, Resilience Enhancement, and Stable Operation of the New System

SHIFT Inc. (“SHIFT,” headquartered in Minato-ku, Tokyo; Representative Director and CEO: Masaru Tange,), which supports to create customers’ sellable software services and product manufacturing, conducted a third-party verification of the project to develop arrowhead4.0 stock trading system, which was newly launched by the Tokyo Stock Exchange, Inc. (“TSE,” headquartered in Chuo-ku, Tokyo; President and CEO: Moriyuki Iwanaga). By conducting third-party verification based on SHIFT’s proprietary testing methods and quality perspectives, SHIFT supported improving the quality, resilience and stable operation of arrowhead4.0 that supports TSE’s extended trading hours to date.

Details of What SHIFT Provided
In November 2024, TSE renewed its stock trading system “arrowhead” and shifted to a new system, “arrowhead4.0,” with the aim of maximizing trading opportunities through extended trading hours, prompt and smooth recovery from system failures, and improving user convenience. Stable operation after release was an absolute requirement “arrowhead4.0.” SHIFT was in line with the project as the last gatekeeper of quality assurance. SHIFT leveraged the know-how and knowledge gained through its quality assurance business to date to undertake a part of acceptance testing centered on new service functions.

Since the operation of “arrowhead4.0” was started on November 5, 2024, the system has operated stably so far, and realized the smooth transactions as expected from the system transition. Going forward, SHIFT will continue to support the continued stable operation of arrowhead and further enhancement of quality and reliability by leveraging its unique capabilities and track record gained through proactive efforts in new technologies, such as quality assurance and related domains, and AI. Furthermore, SHIFT will aim to contribute to the further development of the stock market and the enhancement of Japanese economic competitiveness.

About “arrowhead”
“arrowhead” is a stock trading system that TSE started operation in January 2010. In addition to accepting orders from investors and securities companies, completing the sale and purchase of stocks, and returning the results, this system has the role of delivering the price (quotation) and the contract price (stock price) at which orders are received to the market. Until now, system renovations were carried out in September 2015 and November 2019, and the latest renovation in November 2024 was the first major renovation in about five years.

###

Contact
Motoya Kobayashi
Director
ir_info@shiftinc.jp