CNBCยท2025-09-05 20:19Core Insights - The resolution of Google's antitrust case led to significant stock rallies for Alphabet and Apple, contributing to a combined market cap increase of $420 billion for the U.S. tech industry's eight trillion-dollar companies, raising their total value to $21 trillion [2][5][6] Group 1: Google's Antitrust Case - Google's stock jumped 9% following a U.S. District Judge's ruling that limited the penalties against the company, allowing it to retain its Chrome browser and requiring it to share search data with competitors [3][4] - The ruling is seen as a positive development for both Google and Apple, as it allows Google to continue paying Apple billions to be the default search engine on iPhones, resulting in a 10% rise for Alphabet and a 3.2% increase for Apple [5][6] - Analysts noted that the ruling removed significant concerns for both companies and opened pathways for potential AI partnerships, particularly involving Google's AI models [6] Group 2: Broadcom's Growth - Broadcom's stock surged 13% after announcing a new $10 billion contract with a major AI customer, speculated to be OpenAI, following a strong earnings report [11][12] - The company has now entered the trillion-dollar club, with a market cap around $1.6 trillion, driven by demand for custom AI chips used by major tech firms [12][13] Group 3: Performance of Other Tech Giants - Nvidia shares fell over 4% for the week, marking a four-week decline, despite no negative news impacting the company [13][14] - Microsoft also experienced a decline, dropping for five consecutive weeks, although it remains up 21% over the past year [14] - Tesla's shares increased by 5% this week, driven by news of a proposed pay plan for CEO Elon Musk that could be worth nearly $1 trillion, contingent on significant market cap appreciation [15][16]