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NewsMacro

IBM (IBM) suffers record single-day stock decline on second-quarter earnings warning

IBM (IBM) shares dropped 25% in a single session, the worst single-day performance on record for the company, after management issued a second-quarter earnings warning. The CEO traced the shortfall to weakness in the software and infrastructure business, citing a client spending shift toward hardware purchases as the core reason.

By Desmond ChoiMacro DeskJuly 20, 20262 min read
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Key takeaways

  • IBM shares fell 25% in a single session, the worst single-day performance on record for the company.
  • The drop followed a second-quarter earnings warning that IBM issued before the actual quarterly results were released.
  • IBM's CEO attributed the shortfall to weakness in the software and infrastructure business.
  • The CEO cited a client spending shift toward hardware purchases and away from software and infrastructure as the core reason.
  • The CEO's framing described a rotation within technology spending rather than clients withdrawing from IBM.

IBM (IBM) shares dropped 25% in a single session, the worst single-day performance on record for the company, after management issued a second-quarter earnings warning. The CEO traced the shortfall to weakness in the software and infrastructure business, citing a client spending shift toward hardware purchases as the core reason.

The warning that reset the tape

IBM issued the warning before the actual quarterly print arrived. That sequence carries weight. A pre-report warning signals management saw the quarter deteriorate enough to get ahead of the numbers rather than let investors absorb the miss cold on earnings day. The stock's 25% single-session response reflects how sharply the revision landed. For a company with IBM's history, a record one-day decline represents a meaningful repricing of what the market had expected from those software and infrastructure lines heading into the quarter.

A spending shift, not a demand exit

The CEO's framing is specific: clients moved their budgets toward hardware and away from software and infrastructure. That is a rotation within technology spending, not a withdrawal from it. The distinction matters for how the street reads the path forward. If clients are still committing dollars to hardware, the question becomes whether software and infrastructure budgets return once that hardware cycle absorbs its spend. The CEO's attribution did not indicate clients had left IBM's orbit. It indicated they had prioritized a different product category in the near term.

The mix effect helps explain the stock's reaction. A client rotation from software and infrastructure into hardware can produce an outsized shortfall even when total client engagement holds. IBM's warning reflects that pressure directly in its second-quarter numbers.

What to watch

The second-quarter earnings report is the next confirmable milestone. Analysts will focus on whether management quantifies the software and infrastructure weakness as a short-cycle event or a trend that extends into the second half. Any guidance on whether the spending rotation is reversing will define the next reference point on the tape. Until that print arrives, the setup rests on the CEO's own explanation: a client budget shift material enough to require a formal warning before the quarter closed.

Related reading

About this story

Filed by the macro desk of MarketPR on July 20, 2026. Source: cnbc.com. Indicative figures are not investment advice.

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Frequently asked

How much did IBM's stock fall and why was it notable?

IBM shares dropped 25% in a single session, which was the worst single-day performance on record for the company.

What did IBM's CEO blame for the earnings shortfall?

The CEO cited weakness in the software and infrastructure business, driven by a client spending shift toward hardware purchases.

Did the warning come before or after IBM's quarterly earnings report?

IBM issued the warning before the actual quarterly print arrived, getting ahead of the numbers rather than letting investors absorb the miss on earnings day.

Does the shortfall mean clients are leaving IBM?

No; the CEO described a rotation within technology spending toward hardware, not a withdrawal, and did not indicate clients had left IBM's orbit.

What should investors watch next?

The second-quarter earnings report is the next confirmable milestone, with focus on whether management calls the software and infrastructure weakness a short-cycle event or a lasting trend.