IBM inventory was down 10% on Monday afternoon after Anthropic published a blog post about how its Claude Code software can be utilized to modernize software program written within the COBOL language, which handles large-scale batch transactions. Most of the software program programs utilized by the federal authorities, banks, and airways are written in COBOL, and most of these programs run on IBM mainframes.
IBM additionally generates income from servicing, modernizing, and consulting on these mainframes. If COBOL code had been transformed to a extra trendy language, the programs would seemingly migrate to newer cloud servers.
However modernizing COBOL—which was developed 67 years ago—is a sluggish and costly course of, largely as a result of the code could be obscure and straightforward to interrupt. It usually displays a long time of institutional information and workflows and is often poorly documented, that means its true intent can solely be uncovered via shut evaluation. These challenges are compounded by the shrinking pool of programmers who know COBOL. Most college laptop science packages now not train it.
Anthropic says this evaluation section is essentially the most time-consuming and dear. That’s the place Claude Code is available in. The software can uncover and doc workflows hidden inside the code, establish dependencies throughout completely different components of a codebase, and provides engineers insights into learn how to redesign programs.
“With AI, groups can modernize their COBOL codebase in quarters as a substitute of years,” the corporate writes within the weblog submit.
COBOL was developed in 1959 through a public-private partnership that included the Pentagon and IBM, with the aim of making a common, English-like programming language for enterprise functions. However private-sector corporations have largely moved away from it. The code is difficult and costly to maintain and was designed for batch processing, making it poorly fitted to trendy cloud-based and real-time functions. (Anthropic and IBM didn’t instantly reply to requests for remark.)
The U.S. authorities, regardless of repeated modernization efforts, continues to depend on COBOL-based mainframe programs to handle a wide range of financial transactions, together with tax funds and refunds, Social Safety advantages, and Medicare reimbursements.
Anthropic’s weblog submit comes in the course of a separate dispute between the corporate and the federal government. Anthropic CEO Dario Amodei is anticipated to fulfill with Protection Secretary Pete Hegseth to clarify why the corporate has not eliminated all security guardrails from its AI fashions for Pentagon use. Anthropic has drawn the line at offering AI for autonomous weapons or programs that mass-surveil Americans. In the mean time, Anthropic’s fashions are the one ones authorised for presidency use with categorized data.
The weblog submit will not be the one issue affecting IBM’s inventory. Investor considerations concerning the pace and breadth of AI deployment have depressed enterprise software stocks extra broadly. The market might also be reacting to uncertainty surrounding new global tariff announcements, which may have an effect on tech corporations and their provide chains.

