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Call sheet · Q1'26

International Business Machines (IBM)

Q1'26 earnings call · held April 22, 2026 · compared with the Q4'25 call · management-credibility review
9/12
Disclosure score
2 medium, 4 low flags
Financial quality
Bottom line
The sleeper story is the mainframe becoming an AI inference powerhouse - Krishna's reveal that Code Assistant users are growing MIPS 3x faster is huge for the Z hardware cycle sustainability. The market will celebrate software acceleration to 10%+, but organic growth actually decelerated across most segments. The binding constraint is hardware supply chain disruption hitting RHEL, a new concern that wasn't there 90 days ago. Most telling quote: 'This will be the last quarter we report GenAI book of business' - classic metric retirement after hitting $12.5B round number. My view changes if Z AI inferencing revenue becomes separately disclosed or if RHEL stabilizes by Q3.

The 30-second version

  • SLEEPER STORY: The mainframe is becoming an AI inferencing monster
  • Software growth decelerated from 11% to 8% despite Confluent acquisition
  • They stopped reporting GenAI book of business after hitting $12.5B

What changed this quarter

MetricQ4'25Q1'26Change
Total Revenue Growth9% (highest in 3+ years)6% (still strong but decelerating)-300 bps deceleration
Software Revenue Growth11% (accelerating)8% (organic ~7%+)-300 bps deceleration despite Confluent
Data Segment Growth19% (strong momentum)16% (still double-digit)-300 bps slowdown
Red Hat Growth8% (decelerating)10% (accelerating)+200 bps acceleration
Automation Growth14% (record HashiCorp)7% (solid but slower)-700 bps deceleration
IBM Z Growth61% (outstanding)48% (still record territory)-1300 bps but on harder comp
Infrastructure Growth17% (robust)12% (strong)-500 bps moderation
Consulting Growth1% (steady)1% (unchanged)Flat performance
Free Cash Flow$14.7B (record)$2.2B Q1 (highest Q1 in decade)+$300M vs prior year Q1
Operating Pretax Margin100 bps expansion140 bps expansion+40 bps better than expected

Accountability tracked

8 new promises made4 narrative shifts flagged6 prior promises scored
Inside the full report
The complete write-up covers the full promise ledger with kept/missed calls, disclosure-quality scoring, the metrics-vanished check, verification items, and the questions to ask next quarter.
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Scores, kept-promise rates, and flags on this site reflect the author's opinion, applying a stated methodology to statements management made on public earnings calls. Informational and educational purposes only - not investment advice, a recommendation, or an offer to buy or sell any security. Sources believed reliable but not guaranteed; the author may hold positions in the securities discussed.

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