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- Pershing Square fully liquidated its Alphabet (GOOG) stake in Q2 2026 after slashing the position by 95% in Q1, ending a holding first established in Q1 2023.
- The fund raised its Meta Platforms (META) position by approximately 20%, valuing the stake at $1.80 billion as of June 30, 2026.
- META has since outperformed GOOG by roughly 19 percentage points, driven by the Muse AI agent launch that fueled a ~25% single-month surge in September 2026.
Bill Ackman exited Alphabet in Q2 2026, raised Pershing Square's Meta stake by 20%, and generated roughly 19 percentage points of outperformance so far.
Lead
Pershing Square Capital Management completed the full liquidation of its Alphabet Inc. (GOOG, GOOGL) stake during the second quarter of 2026, closing out a position first established in Q1 2023 at more than 10 million shares. In its place, Bill Ackman increased Pershing Square's Meta Platforms (META) holding by roughly 20%, bringing the Nasdaq Meta stake to approximately $1.80 billion - the seventh-largest position in a concentrated 14-stock portfolio valued at $19.47 billion. Since the Q2 13F filing became public in August, META has outpaced GOOG by roughly 19 percentage points, with Alphabet shares slipping into negative territory over the same period.Why Did Ackman Exit Alphabet?
The antitrust overhang proved decisive. A federal court entered final judgment against Alphabet's Google unit in December 2025, ordering the dismantling of exclusive search distribution agreements and mandating data-sharing with competitors - a structural blow to the default-search flywheel that generates the bulk of Google's advertising revenues. While a separate September 2025 ruling spared Google from divesting its Chrome browser, the distribution restrictions struck at the mechanism that keeps billions of users locked inside Google's ecosystem.
Ackman had carried the Alphabet position for three years before beginning aggressive reduction in Q1 2026, cutting Class C shares from 6.1 million to roughly 311,000 and Class A shares from approximately 678,000 to just 32,000, before finishing the liquidation entirely in Q2. The capital was redirected toward a new Microsoft (MSFT) position totaling approximately $2.1 billion, alongside the Meta stake increase and a new $934 million position in Netflix (NFLX). Amazon (AMZN) holdings were trimmed by 25% in the same quarter.
What Made Meta the Better AI Bet?
In a February 2026 statement, Ackman described META as a "deeply discounted valuation for one of the world's greatest businesses," arguing that the market was substantially underpricing Meta's long-term returns from artificial intelligence. The investment thesis has since played out at a pace few anticipated.
Meta launched Muse, its autonomous personal AI agent, on September 8, 2026, with free access and paid tiers priced at $20 and $100 per month. Within 12 days, the product had accumulated 1.8 million iOS downloads in the United States and Canada - surpassing ChatGPT's comparable early-adoption tally and topping the Apple App Store in its category. Meta's 3.2-billion-person social platform provided a distribution runway that pure-play AI rivals could not match. The Muse launch validated the core premise of Ackman's reallocation: that Meta's AI investments were closer to commercial scale than the stock price implied at the time of purchase.
How Have the Stocks Diverged Since the Pivot?
The gap has been decisive. META advanced approximately 25% in September 2026 alone, closing at $741.25 on September 21 after a single-session surge of more than 11% - the stock's strongest daily move since April 2025. Wells Fargo raised its META price target to $796 following the Muse launch, citing significant potential for heavy users to migrate to paid subscription tiers.
Alphabet shares, by contrast, have drifted lower since mid-year. Free cash flow margins compressed from 21% to 9.2% as capital expenditure guidance for 2026 reached $180-$190 billion. The DOJ's cross-appeal of the search-monopoly remedies remains active, and estimates suggest mandatory choice screens could erode 5-8% of Google's search traffic over three years, placing $15-$25 billion of annual advertising revenue at risk. The cumulative spread between the two names since the 13F disclosure stands at roughly 19 percentage points in META's favor - an unusually wide divergence for two mega-cap technology names that historically track each other closely.
Pershing Square's Broader AI Reallocation
The Alphabet-to-Meta swap sits within a wider structural repositioning. New stakes in Visa, Mastercard, and S&P Global were added alongside the technology reallocations. The overall restructuring reflects a judgment that AI monetization is concentrating in companies with large consumer platforms and intact monetization engines rather than those managing regulatory constraints at their core revenue base. At $741 per share, Meta trades roughly 15% below its September peak but retains strong institutional support, with 61 analyst buy ratings and zero sell recommendations as of the most recent consensus tally.
Outlook
The performance spread between META and GOOG heading into year-end will turn on two variables: the appellate outcome in the Google search-monopoly case and Muse's capacity to convert early free-tier adopters into recurring paid subscribers. Each of those factors carries a binary quality - the antitrust appeal could meaningfully tighten or loosen constraints on Alphabet's distribution model, while Muse's subscription economics will begin appearing in Meta's Q3 2026 earnings. For investors tracking AI stocks, both catalysts represent near-term inflection points for the divergence Ackman's Q2 moves set in motion.