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  • | What Is a Share Buyback? A Summary for Investors

What Is a Share Buyback? A Summary for Investors

Written by Corporate Secretary & Communications
Dec 18, 2025 • 5 min

A share buyback is a corporate action in which a company repurchases its own shares that are already circulating in the market. This strategy can affect ownership structure, the number of outstanding shares, and even the movement of the share price itself.

This article discusses what a share buyback is, along with its objectives, impact, and risks for investors. Let’s take a closer look.

How Share Buybacks Work

A buyback refers to a company purchasing its own shares that are previously held by the public. When the number of outstanding shares decreases, ownership becomes more consolidated and certain financial ratios may appear stronger.

A share buyback can also influence investor perception. In addition, buybacks may alter a company’s capital structure, particularly when they are used as an alternative to dividend distribution.

Objectives of a Share Buyback

Share buybacks are commonly carried out by large companies for clear strategic reasons. These include:

1. Managing the Company’s Capital Structure

Companies use buybacks to adjust capital composition, for example by reducing the number of outstanding shares or increasing earnings per share. This helps maintain an efficient and competitive capital structure.

2. Signaling Management Confidence

A share buyback can signal that management is confident in the company’s business prospects. When shares are considered undervalued, repurchasing them demonstrates management’s belief that the company’s value will increase in the future.

3. Utilizing Excess Cash

If a company has substantial excess cash, a buyback can be a more effective use of funds than letting cash sit idle. By repurchasing shares, the company may enhance shareholder value through potential share price appreciation.

Potential Benefits of Share Buybacks for Investors

Buybacks are often viewed as attractive corporate actions for investors. Here are some several potential benefits investors should understand before making decisions:

1. Potential for Share Price Appreciation

When the number of outstanding shares decreases, the value per share may increase as earnings are distributed across fewer shares. This can create opportunities for price appreciation, particularly if the market responds positively to the buyback. However, outcomes still depend on overall market sentiment and conditions.

2. A Signal of Confidence from Management

Buybacks are frequently interpreted as a sign of management’s confidence in the company’s future. This confidence can strengthen investor trust. Nevertheless, buybacks do not guarantee long-term performance, making it essential to continue evaluating the company’s fundamentals and strategic direction.

Risks of Share Buybacks to Consider

Although buybacks can send positive signals, investors should remain aware of several associated risks:

1. Share Prices Do Not Always Increase

Not all buybacks result in higher share prices. If the market perceives that the buyback is not supported by strong fundamentals, the share price may stagnate or even decline after the action.

2. Use of Cash May Limit Expansion Opportunities

Buybacks require significant capital. Allocating cash to repurchase shares can reduce the funds available for expansion, innovation, or other investments. If not managed carefully, this may hinder long-term growth.

3. Importance of Evaluating the Rationale and Financial Condition

Investors should not view a share buyback solely as a positive signal. The underlying reasons for the buyback and the company’s financial health must be analyzed comprehensively. If a buyback is conducted when financial conditions are not optimal, investor risk may increase.

Understanding Share Buybacks More Deeply and Investing Wisely

A buyback is a strategy in which a company repurchases its own shares as part of capital structure management and market perception strategy. However, like other corporate actions, buybacks are not inherently positive or negative. Investors should continue to assess company fundamentals, the rationale behind the buyback, and long-term investment objectives.


If you want to better understand corporate actions and make more confident investment decisions, consider consulting a trusted securities firm such as Mandiri Sekuritas. With over 25 years of experience, Mandiri Sekuritas is one of Indonesia’s leading securities companies and a subsidiary of Bank Mandiri, offering comprehensive investment banking services, including retail access through the Growin’ platform. Learn more about share buybacks and other market insights via mandirisekuritas.co.id or growin.id.


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