# Harmonic Drive Systems (6324.T)

> Harmonic Drive Systems is a Japanese maker of strain-wave (harmonic) gears and precision actuators. These are key components in robot joints, including in industrial and humanoid robots.

Source page: https://airoboticsdirectory.com/companies/harmonic-drive-systems/
Updated: 2026-11-02
Publisher: AI & Robotics Directory (https://airoboticsdirectory.com/). Data licence: CC BY 4.0.

## Overview

- Category: [Industrial automation](https://airoboticsdirectory.com/category/industrial-automation/)
- Listing status: public (listed as Harmonic Drive Systems Inc.)
- Ticker: 6324.T
- Themes: [Physical AI & humanoids](https://airoboticsdirectory.com/themes/#physical-ai), [Reshoring & factory automation](https://airoboticsdirectory.com/themes/#reshoring)
- Website: https://www.hds.co.jp/english/
- Slug: `harmonic-drive-systems` (stable ID used in URLs and the API)

## Key public facts

Each figure links to its public source, with an as-of date. A fact is left out when no public source could verify it.

| Fact | Value | Source | As of |
| --- | --- | --- | --- |
| Listing | 6324.T (Tokyo) | [Yahoo Finance](https://finance.yahoo.com/quote/6324.T/) | 2026-11-02 |
| Last close | 5,204.00 JPY | [Yahoo Finance](https://finance.yahoo.com/quote/6324.T/) | 2026-11-02 |
| 1-week price change | +2.24% | [Yahoo Finance](https://finance.yahoo.com/quote/6324.T/) | 2026-11-02 |
| Market capitalisation | 492.65 billion JPY | [Yahoo Finance](https://finance.yahoo.com/quote/6324.T/) | 2026-11-02 |
| Full-time employees | 1,419 | [Yahoo Finance profile](https://finance.yahoo.com/quote/6324.T/profile/) | 2026-11-02 |
| Headquarters | Tokyo, Japan | [Yahoo Finance profile](https://finance.yahoo.com/quote/6324.T/profile/) | 2026-11-02 |

## AI & Robots Mention Index

Not available (no SEC filings).

## ETF membership

Tracked ETFs whose holdings include Harmonic Drive Systems. This shows that an ETF holds the company; it is not a recommendation of the ETF or the company.

| ETF | Name | Weight | Holdings coverage | As of | Source |
| --- | --- | --- | --- | --- | --- |
| [BOTZ](https://airoboticsdirectory.com/etfs/#BOTZ) | Global X Robotics & Artificial Intelligence ETF | 0.87% | Full holdings file | 2026-10-30 | [source](https://assets.globalxetfs.com/funds/holdings/botz_full-holdings_20261030.csv) |
| [ROBO](https://airoboticsdirectory.com/etfs/#ROBO) | Robo Global Robotics and Automation Index ETF | 1.74% | Top-10 holdings | 2026-11-02 | [source](https://finance.yahoo.com/quote/ROBO/holdings/) |
| [HUMN](https://airoboticsdirectory.com/etfs/#HUMN) | Roundhill Humanoid Robotics ETF | 5.71% | Top-10 holdings | 2026-11-02 | [source](https://finance.yahoo.com/quote/HUMN/holdings/) |

## Also in Industrial automation

[Doosan Robotics](https://airoboticsdirectory.com/companies/doosan-robotics/), [FANUC](https://airoboticsdirectory.com/companies/fanuc/), [Keyence](https://airoboticsdirectory.com/companies/keyence/), [Rockwell Automation](https://airoboticsdirectory.com/companies/rockwell-automation/), [Siemens](https://airoboticsdirectory.com/companies/siemens/), [Symbotic](https://airoboticsdirectory.com/companies/symbotic/), [Teradyne](https://airoboticsdirectory.com/companies/teradyne/), [Yaskawa Electric](https://airoboticsdirectory.com/companies/yaskawa-electric/), [Zebra Technologies](https://airoboticsdirectory.com/companies/zebra-technologies/)

## How to cite

"Harmonic Drive Systems", AI & Robotics Directory, https://airoboticsdirectory.com/companies/harmonic-drive-systems/ (updated 2026-11-02). Data: SEC EDGAR, Yahoo Finance, ETF issuer holdings files, company website. Not investment advice.

## Disclaimer

Informational only. Not investment, legal or tax advice, and not a recommendation to buy, sell or hold any security. Data comes from public sources, may be delayed or wrong, and every figure links to its source. Full disclaimer: https://airoboticsdirectory.com/about/#disclaimer