Overview
Information & Communication

AlphaPolis Co.,Ltd.

Alphapolis operates a unique publishing business model that sources content from its proprietary user-generated content platforms (web novels and manga submission sites), selects titles based on reader engagement and evaluation data, and publishes them as physical and digital books. The company publishes across four genres—light novels, manga, bunko (paperback fiction), and others—targeting primarily young adult to middle-aged readers, with key labels including Eternity Books (romance for women in their 30s–40s), Regina Books (fantasy for women in their 20s–30s), and male-oriented isekai light novels. Its competitive strengths lie in data-driven title selection that reduces publication risk, strong manga-to-digital conversion (manga representing ~75% of revenues), and a growing global footprint via its overseas manga app 'Alpha Manga' launched in 2021.

Market Cap
¥30.6B
US$195M
EV
¥19.6B
US$125M
Stock¥1,052▼-3.84%
US$1 = ¥156.80 (2026-10-23)
LTM EV/EBITDA
5.1
x
LTM EV/EBIT
5.2
x
LTM PER
11.8
x
LTM PBR
2.0
x
Stock vs TOPIX (1Y, base=100)vs TOPIX ▼-56.3%pt
1001
Oct 24, 25 – Oct 23, 26StockTOPIX
1Aug 17, 26Q1 FY2027/03 earnings announced
MC → EV Bridge
30.6BUS$195MMarket Cap0.13BUS$0.80M+ Debt11.1BUS$70.9M− Cash0.00BUS$0.00M− Inv. Sec.19.6BUS$125MEV
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Performance & Balance
Revenue 5Y (¥B)
9.09US$58.0M'22/39.29US$59.2M'23/310.3US$65.9M'24/313.6US$86.9M'25/316.6US$106M'26/3
EBITDA 5Y (¥B)
2.22US$14.2M'22/32.44US$15.6M'23/32.30US$14.7M'24/33.26US$20.8M'25/33.52US$22.4M'26/3
Net Income 5Y (¥B)
1.39US$8.86M'22/31.51US$9.60M'23/31.40US$8.95M'24/32.02US$12.9M'25/32.32US$14.8M'26/3
Capital Structure
99%
EquityD/E 0.01xDebt
Liquidity vs Debt 5Y (¥B)▲ Net Cash
CashInv. Sec.Debt
7.10US$45.3M0.04US$0.27M'22/38.77US$55.9M0.07US$0.43M'23/39.71US$61.9M0.05US$0.32M'24/311.6US$73.8M0.08US$0.50M'25/311.8US$75.2M0.13US$0.86M'26/3
Shareholders
Top 10 hold 81.8%
1
Office Kajimoto Co., Ltd.
33.36%
2
Yusuke KAJIMOTO
28.90%
3
Custody Bank of Japan, Ltd. (Trust Account)
4.65%
4
The Master Trust Bank of Japan, Ltd. (Trust Account)
4.15%
5
Yukiyo KAJIMOTO
3.08%
6
Ryojiro KAJIMOTO
2.48%
7
Daisuke SEIBAN
1.75%
8
GOLDMAN, SACHS & CO. REG (Standing Proxy: Goldman Sachs Japan Co., Ltd.)
1.42%
9
LEC,INC.
1.07%
10
Ayako KATO
0.96%
Management
7 officers
Yusuke KAJIMOTO
Representative Director, President
Apr 1993 Joined Hakuhodo Inc. Aug 2000 Established the Company; Representative Director, President (current)
1969-12-17
Akimichi OKUBO
Director, General Manager of Administration Division
Apr 1996 Joined Toyota Finance Corporation Mar 2010 SBI Mortgage Co., Ltd. (now SBI ARUHI Corporation), Head of Finance and Accounting Department Dec 2012 Joined the Company Dec 2013 Director of the Company (current) Jul 2015 General Manager, Administration Division of the Company (current)
1972-04-03
Hiroyuki TOMINAGA
Director (Note 3)
Apr 1971 Joined Sasebo Heavy Industries Co., Ltd. Apr 1995 Registered as Attorney-at-Law; member of Intellectual Property Law Committee, Tokyo Bar Association Apr 2000 Member, Special Committee on Measures against Civil Intervention by Organized Crime, Tokyo Bar Association Feb 2003 Registered as Patent Attorney Feb 2003 Representative, Tominaga Law & Patent Office (current) Jun 2014 Director of the Company (current)
1947-03-17
Takuya SHIRAISHI
Director (Note 3)
Apr 1996 Joined Future Corporation Apr 2015 Executive Officer, Lawson, Inc. Jan 2016 Representative Director, President, Lawson Digital Innovation, Inc. Feb 2018 Representative Director, President, Digimile, Inc. (current) May 2018 CIO, Walmart Japan Holdings K.K. / Seiyu GK May 2020 Assistant to CEO, Ajinomoto Co., Inc. Jun 2021 Director of the Company (current) May 2022 Outside Director, Taito Corporation Jul 2023 Director, WeCode Inc. (current)
1969-07-03
Takao OCHIFUJI
Full-time Corporate Auditor (Note 4)
Apr 1977 Joined Dentsu Inc. Jul 2003 Representative Director, Dentsu EYE Inc. Mar 2006 Representative Director, Dentsu Wunderman Inc. Apr 2012 General Manager, Global Business Bureau, Dentsu Inc. Apr 2013 Corporate Auditor of the Company (current)
1953-10-27
Nobuhiko IKEDA
Corporate Auditor (Note 4)
Apr 1968 Joined Mitsui Trust Bank, Limited Jun 1999 Director, Mitsui Shin Business Co., Ltd. Mar 2006 General Manager, Internal Audit Department, SBI Mortgage Co., Ltd. May 2008 Corporate Auditor, SBI Mortgage Co., Ltd. Mar 2013 Corporate Auditor of the Company (current)
1945-04-08
Yoshiaki AMANO
Corporate Auditor (Note 4)
Apr 1972 Joined Mitsui Trust Bank, Limited Jan 2001 Transferred to Mitsui Mining Co., Ltd. Jun 2005 Representative Director, Mitsui Mining Materials Co., Ltd. Jun 2006 Full-time Corporate Auditor, Sanko Consultant Co., Ltd. Jun 2014 Corporate Auditor of the Company (current)
1948-11-07
Large Shareholding Reports
Asset Management One Co., Ltd.
2026-10-07
5.02%→3.73%
Asset Management One Co., Ltd.
2025-10-07
5.02%
Disclosures
No disclosures
Primary Source Filings
EDINET
2026-10-07
Large Shareholding Report
TDnet
2026-08-14
Q1 Earnings Flash
FY ending Mar 2027
EDINET
2026-06-19
Annual Securities Report
Period: Apr 2025 – Mar 2026
TDnet
2026-02-13
Q3 Earnings Flash
FY ending Mar 2026
EDINET
2025-11-13
Semi-Annual Securities Report
Period: Apr 2025 – Mar 2026
EDINET
2025-10-07
Large Shareholding Report
TDnet
2025-08-14
Q1 Earnings Flash
FY ending Mar 2026
EDINET
2025-06-17
Annual Securities Report
Period: Apr 2024 – Mar 2025
TDnet
2025-02-13
Q3 Earnings Flash
FY ending Mar 2025
EDINET
2024-11-14
Semi-Annual Securities Report
Period: Apr 2024 – Mar 2025
TDnet
2024-08-09
Q1 Earnings Flash
FY ending Mar 2025
EDINET
2024-06-26
Annual Securities Report
Period: Apr 2023 – Mar 2024
EDINET
2024-02-09
Quarterly Securities Report
Period: Oct 2023 – Dec 2023
EDINET
2023-11-10
Quarterly Securities Report
Period: Jul 2023 – Sep 2023
EDINET
2023-08-10
Quarterly Securities Report
Period: Apr 2023 – Jun 2023
EDINET
2023-06-23
Annual Securities Report
Period: Apr 2022 – Mar 2023
EDINET
2023-02-13
Quarterly Securities Report
Period: Oct 2022 – Dec 2022
EDINET
2022-11-11
Quarterly Securities Report
EDINET
2022-08-10
Quarterly Securities Report
EDINET
2022-06-22
Annual Securities Report
EDINET
2022-02-10
Quarterly Securities Report
EDINET
2021-11-11
Quarterly Securities Report
EDINET
2021-08-12
Quarterly Securities Report
EDINET
2021-06-23
Annual Securities Report
EDINET
2021-02-12
Quarterly Securities Report
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