Quantitative Research

JPX Margin Trading Weekly (Oct 23rd): Mitsui Mining & Smelting, SoftBank, Infroneer, Advantest

23 Oct 2026 By Ke Yan, CFA, FRM
← All Research Reports

Abstract: We analyzed the changes in margin trading positions of JPX stocks as of October 23rd, 2026. The aggregated net margin trading position was USD26,972m, down from USD28,757m a week earlier. The net margin trading position decreased by 6.2% last week while the TOPIX 500 index decreased by 2.4%, and 775 stocks saw margin loan positions increase while 1,210 stocks saw them decrease. On the upside, SoftBank's net margin position rose USD104m (+8.2%) to USD1,064m, Advantest rose USD78m (+19.2%) to USD432m, Tokyo Electron rose USD73m (+5.3%) to USD683m, and Kioxia rose USD49m (+0.7%) to USD3,791m, the largest net position on the exchange. On the downside, Mitsui Mining & Smelting's net margin position fell USD194m (-30.7%) to USD139m, Infroneer swung USD93m lower to a net short of USD52m, JX Advanced Metals fell USD61m (-12.0%) to USD380m, Tokio Marine fell USD59m (-14.0%) to USD101m, and Nintendo fell USD43m (-11.7%) to USD337m.

Mitsui Mining & Smelting (5706 JP) Infroneer (5076 JP) JX Advanced Metals (5016 JP) SoftBank (9984 JP) Advantest (6857 JP) Tokyo Electron (8035 JP)

Highlighted Stocks

Mitsui Mining & Smelting, Infroneer, JX Advanced Metals, SoftBank, Advantest, Tokyo Electron

Series: JPX Margin Trading Weekly: all issues →

More from JPX Margin Trading Weekly

Interested in the full report? Get in touch with our team.