Quantitative Research

JPX Margin Trading Weekly (May 15th): Kioxia, Mitsubishi Heavy Industries, Lasertec, Disco

15 May 2026 By Ke Yan, CFA
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Abstract: We analyzed JPX margin trading positions as of May 15th, covering stocks with market cap of at least USD 100m. The aggregated net margin trading position stood at USD 27,467m, up 3.8% week-on-week, outpacing the TOPIX 500 index gain of 0.9%. Net long positions increased for 1,131 stocks while 922 stocks saw net short increases. The top gainers by weekly net margin loan increase were Kioxia (285A JP, +USD 326m), Mitsubishi Heavy Industries (7011 JP, +USD 213m), Lasertec (6920 JP, +USD 132m), and Disco (6146 JP, +USD 121m). The largest weekly decreases were in Furukawa Electric (5801 JP, -USD 79m), Sumitomo Electric Industries (5802 JP, -USD 68m), and Mitsubishi (8058 JP, -USD 66m).

Disco (6146 JP) Kioxia (285A JP) IHI (7013 JP) JX Advanced Metals (5016 JP) Lasertec (6920 JP) Mitsubishi Heavy Industries (7011 JP)

Highlighted Stocks

Disco, Kioxia, IHI, JX Advanced Metals, Lasertec, Mitsubishi Heavy Industries

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