Kioxia Holdings (285A.T, TSE) is a Japan company in the Memory / HBM segment of the AI compute value chain — Kioxia, a leading Japanese NAND flash memory maker. As of October 04, 2026, its market cap is $201.3 billion ($201.3B), ranking #22 of 244 companies overall and #5 of 15 in the Memory / HBM segment (4.9% of the segment, 0.79% of the chain).
| Company | Kioxia Holdings（铠侠） |
|---|---|
| Ticker | 285A.T · TSE |
| Segment | Memory / HBM |
| Headquarters | Japan |
| Market cap | $201.3B（$201.3 billion） |
| Close | 19,300.00 JPY (October 04, 2026) |
| Today | — |
| 30 days | — |
| 1 year | — |
| 52-wk high / low | — |
| Share of segment | 4.9% (Memory / HBM: 15 companies) |
| Share of chain | 0.79% (244 companies combined) |
| Segment leader | Micron Technology ($1.21T) |
| Revenue (TTM) | $23.9 billion |
|---|---|
| Net income (TTM) | $9.2 billion |
| Employees | 15,249 |
| P/E ratio (TTM) | 23.2 |
| P/B ratio | 13.20 |
| Gross margin | 61.7% |
| Net margin | 36.6% |
| Basis | TTM (source: StockAnalysis, 2026-10-05 07:49) |
| # | Company | Market | Market cap |
|---|---|---|---|
| 1 | Micron Technology MU | US | $1.21T |
| 2 | Samsung Electronics 005930.KS | KR | $1.20T |
| 3 | SK Hynix 000660.KS | KR | $998.6B |
| 4 | SanDisk SNDK | US | $251.8B |
| 5 | Kioxia Holdings 285A.T | JP | $201.3B |
| 6 | Western Digital WDC | US | $149.7B |
| 7 | GigaDevice 603986 | SH | $37.1B |
| 8 | Longsys 301308 | SZ | $20.7B |
| 9 | Hanmi Semiconductor 042700.KS | KR | $19.2B |
| 10 | Biwin Storage Technology 688525 | SH | $13.7B |