IDC Perspective: Mainframe Still Plays a Critical Role in Financial Services 

By Rocket Software

2 min. read

When you pay with a card or transfer money, you're likely relying on the backbone of global finance: the mainframe. Despite newer technologies like cloud computing, mainframes handle over 95% of all noncash transactions globally. 

What Makes Mainframes Indispensable? 

Mainframes have long been central to financial services. Here's why:

  • Resilience: Mainframes provide unmatched uptime, ensuring reliability for mission-critical tasks.
  • Speed and Scale: They process millions of transactions with unparalleled speed and scalability.
  • Security: Mainframes continue to meet the highest security standards.
  • Support for Large Workloads: Mainframes handle high volumes with efficiency, from retail payments to shareholder processing. 

Modern Challenges Driving Mainframe Evolution 

To remain competitive, financial institutions are modernizing their mainframe systems. Here's why:

  1. AI and New Technologies 
    Integrating AI enhances predictions and automation, improving services.
  2. Talent Shortages 
    Modern development tools attract new talent and streamline operations.
  3. Hybrid Cloud Models 
    Combining mainframe capabilities with cloud environments optimizes data control and flexibility.
  4. Cost Optimization 
    Careful modernization aligns with budgets while retaining performance. 

Approaches to Mainframe Modernization

Institutions leverage several strategies for modernization, including:

  • Enhancing on-premises capabilities for better private cloud functionality.
  • Adding AI integration to improve speed and data access.
  • Migrating selective workloads to public or private clouds based on operational needs.
  • Employing hybrid models to balance sensitive data security with cloud-based computations.

By tailoring these strategies, financial organizations preserve the strengths of mainframes while positioning themselves for the future. 

Why Mainframes Still Matter in Financial Services

Financial institutions are projected to spend $2.3 billion on mainframes in 2025 because of their importance and the growing need for strategic modernization. Mainframes remain the "beating heart" of financial services. They ensure security, reliability, and scalability.

Exploring modernization strategies is crucial for staying ahead in this competitive industry. By assessing workloads, evaluating costs, and partnering with experts, financial institutions can unlock greater efficiency and adaptability. Delve into these insights to make informed decisions and guide your organization toward sustainable growth and innovation.

 

Related posts

Hybrid Cloud

A Platform-Smart Approach to Mainframe Modernization

1 min read
Evaluate workload placement across mainframe, cloud, and distributed environments in large estates with this Gartner® modernization research. Read more.
Artificial Intelligence (AI)

From Pilot to Production: The AI-Readiness Blueprint for the Hybrid Data Estate

6 min read
Discover how to overcome data silos and build an AI-ready data estate with five strategic shifts for seamless integration and secure data management.
Artificial Intelligence (AI)

From Summit to Strategy: Inside Gartner’s D&A Summit 2026

Michael Curry
4 min read
From March 9-11, Rocket attended Gartner’s Data and Analytics Summit in Orlando, Florida.