• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
FinanceSouth Korea
Asia

Activist retail investors take on Korea’s corporate laggards

By
Shery Ahn
Shery Ahn
and
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Shery Ahn
Shery Ahn
and
Bloomberg
Bloomberg
Down Arrow Button Icon
June 9, 2025, 3:48 AM ET
Lee Jae-myung, the left-leaning politician who won the country’s presidential election last week, tried to position himself as a champion for shareholders.
Lee Jae-myung, the left-leaning politician who won the country’s presidential election last week, tried to position himself as a champion for shareholders.Jeon Heon-Kyun—Pool/Getty Images

South Korea’s small investors are trying to shake up the country’s creaky corporate landscape.

Recommended Video

Amateur stock-pickers across the country are gathering on social media platform KakaoTalk and dedicated shareholder apps such as Act, which has racked up more than 110,000 users in the two years since it launched. Their aim: to give a jolt to Korea’s $1.9 trillion stock market, which has for years traded at cheaper multiples than regional rivals like Japan and Taiwan.

“Korea’s financial system lags global standards and companies need to be held accountable,” said Younghee Won, a 66-year-old art instructor and amateur investor. “Online platforms allow our anger to translate into action.”

This wave of grass-roots activism means Korea’s listed companies are now being pressured from all sides, as politicians, regulators and foreign investment funds push for better governance. That may finally force local companies to address the long-standing “Korea discount”—adding fuel to a stock market that is already one of the world’s best performers so far this year.

It has also turned small investors into a surprising political force. Lee Jae-myung, the left-leaning politician who won the country’s presidential election last week, tried to position himself as a champion for shareholders, promising to lift corporate governance standards, curb stock manipulation and set the Kospi index on the path to 5,000—almost 80% higher than its current level.

The Kospi entered a bull market after Lee’s election win and was around 1.7% higher in early Asian trading on Monday. 

The market is getting a boost from foreign funds loading up on stocks, and rising optimism from Wall Street. Goldman Sachs Group Inc. strategists said in a weekend note they were upgrading Korean stocks to overweight from neutral, pointing to the increased likelihood of capital market reforms.

Growing clout

Retail investors in Korea now represent almost 30% of the overall population, according to Goldman Sachs. A boom in stock trading during the COVID-19 pandemic led to millions of new account openings, fueling the rise of online communities where they could learn about stock picking—and hatch plans. 

Shareholders of Korean companies filed 168 proposals in the most recent round of annual general meetings, a jump of more than 80% from 2021, according to figures from the AJU Research Institute of Corporate Management. That included 78 proposals directly targeting management, calling for the appointment or removal of executives.

“Minority shareholders are seeking a more active role in corporate governance,” said Nameun Kim, deputy director at the AJU. “If previously the focus was solely on returns, now they want their preferred directors on the board so they can participate in management decisions.”

So far, small investors’ successes have come at small companies, those with a market value of $1 billion or less. During the recent round of annual general meetings in March, medical company Oscotec Inc. scrapped plans to reappoint its chief executive after pushback from investors, while biotechnology firm Amicogen Inc and textile company DI Dong Il Corp. appointed new auditors after small investors pushed for it.

Oscotec, Amicogen and DI Dong Il Corp. didn’t respond to requests for comment. 

Unsurprisingly, many companies do their best to resist—or simply ignore—these mini activists. Kim, a schoolteacher who asked to be identified only by his surname, became so frustrated with one Korean company whose stock he holds that he sent 400 letters to fellow investors he found in the company’s shareholder registry, asking them to join him in a KakaoTalk group to discuss possible action. More than 120 of them signed up.

“I had to print and mail each one by hand,” he said. “I did it all on my own, outside of work hours, while maintaining a full-time job. Shareholder activism is exhausting, frustrating and frankly overwhelming.”

The company didn’t respond to Kim’s numerous requests for clarity on their business performance, and he ended up selling most of his stake. He held on to a few shares out of a sense of obligation to his fellow activists.

The rise of small investors in Korea differs from the meme-stock mania in the U.S., where anonymous users on Reddit’s WallStreetBets forum banded together to drive up the price of GameStop Corp. and other shares. Korean platforms such as Act and Hey Holder require users to confirm they actually hold shares before they can join any dedicated group, meaning those weighing into discussions already have skin in the game.

Act’s CEO Sangmok Lee said that users on his platform often act more like “fans” of the companies they hold. “Fans engage in shareholder activism out of love for the company, much like how parents use discipline out of love,” Lee said.

Powerful allies

Korea’s stock market has for years been cheaper than close rivals Japan and Taiwan when it comes to metrics such as the price-to-book ratio, a popular measure of how much a stock is worth compared to the value of a company’s assets. The “Korea discount” doesn’t have a single cause but analysts point to worries about how companies invest, a convoluted series of cross shareholdings and a sense that the interests of company executives aren’t always in line with their shareholders.

Small investors won’t be enough on their own to turn things around, but they have some powerful allies. Local activist funds like Align Partners Capital Management Inc. are on the rise, adding professional savvy to the efforts of amateur investors. Foreign funds are also getting in on the act, expanding their operations in Korea in the hopes that the market is finally ready to turn a corner. 

“We’re optimistic that the presidential elections will bring even more substantial changes in South Korea,” said Seth Fischer, founder and chief investment officer of activist fund Oasis Management in a recent Bloomberg Television interview. He added a note of caution, saying there was still a “long, long way to go” in reforming Korea’s corporate sector.

But small investors’ greatest source of support may come from the very top. In a Facebook post before his election win, Lee Jae-myung promised to protect investors’ interests, promote transparency and push companies to appoint directors representing minority shareholders. 

His goal? Turning the “Korea discount” into a “Korea premium.”

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Authors
By Shery Ahn
See full bioRight Arrow Button Icon
By Bloomberg
See full bioRight Arrow Button Icon

Latest in Finance

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Finance

ExxonMobil CEO Darren Woods, far right, listens as U.S. President Donald Trump,left, speaks during a meeting with oil company executives in the East Room of the White House on Jan. 9. President Trump is aiming to convince oil executives to support his plans in Venezuela, a country whose energy resources he says he expects to control for years to come. US forces seized Venezuelan president Nicolas Maduro in a sweeping military operation on January 3, with Trump making no secret that control of Venezuela's oil was at the heart of his actions.
EnergyIran
Exxon Mobil CEO sees ‘more to come’ on price spikes from Iran war as Exxon, Chevron beat on earnings despite plunging profits
By Jordan BlumMay 1, 2026
48 minutes ago
trump
PoliticsIran
Trump on Iran: ‘They want to make a deal, I’m not satisfied with it, so we’ll see what happens’
By Toqa Ezzidin, Munir Ahmed, Collin Binkley and The Associated PressMay 1, 2026
3 hours ago
infantino
North AmericaWorld Cup
Fifa’s Infantino predicted sellouts and ‘1,000 years of World Cups at once,’ but fans aren’t biting
By James Robson and The Associated PressMay 1, 2026
3 hours ago
cox
C-SuiteWealth
Billionaires have a problem money can’t solve: They don’t know how to talk to their kids
By Nick LichtenbergMay 1, 2026
3 hours ago
trump
EconomyTariffs
Trump says he’ll hike EU auto tariffs to 25%, jolting a world economy that really didn’t need it
By Josh Boak and The Associated PressMay 1, 2026
3 hours ago
male engineer working under pylon
EnergyElectricity
Utility CEOs pocket $626 million as American energy bills hit record highs
By Tristan BoveMay 1, 2026
3 hours ago

Most Popular

Scott Bessent on financial literacy: 'it drives me crazy' to see young men in blue-collar construction jobs playing the lottery
Personal Finance
Scott Bessent on financial literacy: 'it drives me crazy' to see young men in blue-collar construction jobs playing the lottery
By Fatima Hussein and The Associated PressMay 1, 2026
8 hours ago
China dominates the world's lithium supply. The U.S. just found 328 years' worth in its own backyard
North America
China dominates the world's lithium supply. The U.S. just found 328 years' worth in its own backyard
By Jake AngeloApril 30, 2026
1 day ago
The U.S. economy is booming — just not where 50 million Americans live
Commentary
The U.S. economy is booming — just not where 50 million Americans live
By Derek KilmerMay 1, 2026
13 hours ago
Accenture's Julie Sweet blew up 50 years of company history. She says the hardest part is still ahead
Conferences
Accenture's Julie Sweet blew up 50 years of company history. She says the hardest part is still ahead
By Nick LichtenbergApril 29, 2026
2 days ago
Apple cofounder Ronald Wayne—whose stake would be worth up to $400 billion had he not sold it in 1976—says that at 91, he has no regrets
Success
Apple cofounder Ronald Wayne—whose stake would be worth up to $400 billion had he not sold it in 1976—says that at 91, he has no regrets
By Preston ForeApril 27, 2026
4 days ago
Exclusive: America's largest Black-owned bank launches podcast with mission to unlock hidden shame holding back generational wealth
Banking
Exclusive: America's largest Black-owned bank launches podcast with mission to unlock hidden shame holding back generational wealth
By Nick LichtenbergApril 29, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.