Microsoft Achieves Record $450 Billion Surge in Market Value

WHO:

Techmeme - Microsoft Corp. is the organization involved in the stock market event.

WHAT:

Techmeme - Microsoft's stock closed up 15.5%, adding approximately $450 billion to its market capitalization.

Bloomberg Markets - Microsoft is on track to record the largest one-day increase in market value for any stock in history.

WHERE:

Techmeme - The event took place in the stock market, though a specific location is not mentioned.

WHEN:

Techmeme - The stock market event occurred on a Thursday, though the specific date is not provided.

WHY:

Techmeme - The article does not specify the reasons for the stock increase.

HOW:

Techmeme - The increase in market capitalization is described as the largest single-day market value increase in stock market history.

(UPDATED July 31, 2026 01:35 UTC)

Microsoft Corp. has made headlines today with its stock closing up an impressive fifteen point five percent, which adds around four hundred fifty billion dollars to its market capitalization. This remarkable surge positions Microsoft to achieve the largest one-day increase in market value for any stock in history. While the specific reasons behind this significant rise remain unclear, the event took place in the stock market on a Thursday.