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IBM Stock Plunges 20% in Worst Day in Decades, Losing $55B

IBM shares plunged over 20% in their worst day in decades after the company released weak preliminary Q2 results, wiping out $55 billion in market value. Wall Street remains divided on whether the stock is a buying opportunity or a value trap.

July 15, 2026
2 min read
Source: Barchart
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Key Numbers

market cap loss
55 billion USD

International Business Machines Corp. (IBM) experienced its worst trading day in decades, with shares plummeting over 20% after releasing disappointing preliminary results for the second quarter of 2026. The sharp decline erased approximately $55 billion in market capitalization, raising concerns about the company's near-term outlook.

Key Financial Results

MetricValueNotes
RevenueNot yet disclosedPreliminary results only
Net IncomeNot yet disclosed-
EPSNot yet disclosed-

IBM did not provide specific figures, but the preliminary results fell well below analyst estimates.

Key Takeaways from the Announcement

IBM cited weaker-than-expected demand for its cloud and consulting services as the primary reason for the shortfall. The company also noted increased competition in the technology sector.

Future Guidance

IBM has not issued formal guidance for the next quarter, but analysts expect downward revisions in the coming days.

Impact on the Stock

The stock closed down over 20%, marking its largest single-day percentage decline in decades. The sell-off pushed the share price to multi-year lows.

What This Means for Investors

While some analysts view the sharp decline as a potential buying opportunity for long-term investors, others caution that IBM's fundamental challenges may persist. Investors are advised to wait for the full Q2 report and official guidance before making decisions.

Frequently Asked Questions

IBM lost approximately $55 billion in market value in a single day.

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This article was rewritten in Wrqti's editorial style based on information from the original source above. Content is informational only — not investment advice.