Case Study: Japan Exchange Group achieves low-latency, disaster-resilient global trading network with NTT Communications

Stronger Network for Transactions Achieves Ideal Trading Environment to Attract Money

Japan Exchange Group (JPX), formed from the Tokyo and Osaka exchanges to boost Japan’s global competitiveness, faced a critical challenge: provide a carrier‑grade, low‑latency network to support increasingly automated trading, attract foreign investors and reduce costly, separate infrastructure while ensuring continuity during disasters.

JPX partnered with NTT Communications to build arrownet (2009) — a redundant, mostly underground ring network — and arrownet‑Global (2013), which leverages PC‑1 and ASE submarine cables to link major global markets. The integrated network now serves about 150 firms, eliminated connection delays, proved resilient in major disasters, enabled seamless global co‑location access, and improved cost‑efficiency and price competitiveness for the Japanese market.

Japan Exchange Group

Shinobu Sakamoto

Director