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ADP IPO

Automatic Data Processing (ADP) is a leading provider of human resources management software and services, including payroll processing, benefits administration, talent management, and HR analytics. The company serves businesses of all sizes globally and has been a dominant player in the HR technology and services market for decades. ADP is considered a stable, dividend-paying stock in the business services sector.

PublicUpdated March 27, 2026

What We Know

ADP has been a publicly traded company for decades, having gone public in 1961. The company trades on the NASDAQ under the ticker symbol 'ADP' and is a component of the S&P 500 index. ADP has established itself as a mature, profitable company in the HR services space. As a long-established public company, ADP regularly reports quarterly earnings and has a track record of consistent dividend payments to shareholders. The company has grown both organically and through acquisitions over the years, maintaining its position as a leader in payroll and HR services.

Frequently Asked Questions

Has ADP had an IPO?

Yes, ADP has been a public company since 1961. The company has been trading on public markets for over 60 years and is well-established in the HR services industry.

When is the ADP IPO date?

ADP already completed its IPO in 1961 and has been publicly traded for decades. There is no upcoming IPO date as the company is already public.

How can I buy ADP stock?

You can buy ADP stock through any brokerage account as it trades publicly on NASDAQ under the ticker symbol 'ADP'. The stock is widely available and part of the S&P 500 index.

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