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Audiostock

オーディオストック

TSE Growth ・ Ticker 621A ・ Listed

Updated

Result on listing day

+46.6%

Offer price

1,060 yen

First traded price

1,554 yen

Selling 100 shares at the first traded price would have produced a gain of 49,400 yen, before fees and tax. 100 shares is the minimum trading unit in Japan.

Application period (book building)
2026-09-01 — 2026-09-07
Lottery result
2026-09-08
Listing date
2026-09-16
Cash needed to apply for one lot (100 shares)
about 106,000 yen
Tentative price range (kari-joken)
1,020 — 1,060 yen
Offering size (at the offer price)
1.4 billion yen ・ 1,277,600 shares
Market capitalisation at listing
4.4 billion yen
Lock-up
Not translated — this is the wording from the Japanese offering documents, kept verbatim so it matches what your broker shows: 主要株主に180日間。ベンチャーキャピタルの一部は90日間で、公開価格の1.5倍を超えると解除される条項付き
Company website
https://audiostock.co.jp/

Closing prices after listing

Compared with the first traded price of 1,554 yen.

2026-09-161,954 yen+25.7%
2026-09-171,554 yen+0.0%
2026-09-181,360 yen-12.5%
2026-09-241,554 yen+0.0%
2026-09-251,454 yen-6.4%

Brokers you can apply through

You can only enter this lottery through a broker underwriting it. The lead underwriter is SBI Securities, which receives the largest allocation.

SBI証券松井証券極東証券ひろぎん証券むさし証券JTG証券岩井コスモ証券東海東京証券岡三証券岡三オンライン (no longer offers IPOs)中銀証券光世証券DMM.com証券SBIネオトレード証券

Broker pages are in Japanese. A comparison in English is on the brokers page.

What stands out

  • Over one million tracks of music, sound effects and voice, and about 40,000 registered creators as of September 2025
  • Revenue grew from about 580 million yen in the year to September 2023 to about 1.51 billion yen in the year to September 2025, and the company turned an operating profit in the year to September 2024
  • The offering is small, about 1.35 billion yen including the over-allotment at the top of the 1,020-1,060 yen price range, so relatively few shares reach the market at listing

What could go wrong

  • About 91% of the shares on offer are existing shareholders selling out. Only 100,000 newly issued shares raise money for the company itself
  • Most of the royalty revenue is earned through two partner companies. NexTone alone accounted for 40.0% of sales in the nine months to June 2026, so dependence on particular counterparties is high
  • The company itself flags that if AI which generates audio automatically becomes widespread, it could bring price competition and weaker demand for its tracks

About the company

Runs Audiostock, a platform that licenses music, sound effects and voice recordings supplied by creators to video makers and companies.

How it makes money

It makes money in two ways. One is fees from users, who either buy a single track or subscribe to a monthly plan. The other is royalty income. Tracks entrusted to the Japanese rights bodies NexTone and JASRAC earn royalties when broadcast on television or radio, and the company also distributes music to Apple Music, Spotify and similar services. Royalty income was about 59% of sales in the year to September 2025, overtaking the user fees, and between 30% and 50% of what a track earns is paid back to its creator.

Where growth is meant to come from

The figure the company watches most closely is the number of tracks it manages the copyright for, since those are the ones that can earn royalties. It grew from 9,500 at the end of the year to September 2023 to 44,500 by the end of the third quarter of the year to September 2026. Royalty collection has so far centred on television and radio, and in April 2026 the company released a beta of a new service (ビートリ) aimed at YouTube, extending into online video.

Read about this company in Japanese →

Figures are taken from the offering documents and public sources, and are checked against two independent sources before publication. Nothing here is investment advice. Shares can and do open below their offer price.