Pershing Square Capital Management’s strategic investment in Amazon.com Inc (NASDAQ: AMZN) has generated substantial returns, with the initial stake appreciating by at least $423.94 million following Amazon’s strong second-quarter earnings performance. The hedge fund, led by Bill Ackman, capitalized on a dip in Amazon’s stock price in April 2025 to establish a significant position, which has since expanded through additional purchases in late 2025 and early 2026. As of Friday, Amazon shares traded at $271.14, nearing all-time highs, driving the total value of Pershing Square’s holdings to approximately $3.105 billion.

The initial acquisition occurred in April 2025 when Amazon shares traded between $161.38 and $198.34. Pershing Square purchased 5,823,316 shares during this period. While the exact average purchase price is not disclosed, the maximum potential cost for these shares, based on the month’s high, would have been $1,154,996,495.44. At current market prices, this initial block is valued at $1,578,933,900.24. If the shares were acquired near the monthly low of $161.38, the unrealized gain on the initial position could be as high as $639.17 million.

Position Expansion Strategy

Following the initial entry, Ackman doubled down on the position twice, increasing exposure during subsequent quarters. In the fourth quarter of 2025, Pershing Square added 3,784,508 shares, representing a 65% increase to the position. During this period, Amazon stock ranged from $213.04 to $258.60. These additional shares have gained $47,457,730.32 in value, bringing their current worth to $219,879,914.80.

In the first quarter of 2026, the fund further increased its stake by purchasing 1,844,157 shares, a 19% addition. Amazon shares traded between $196 and $248.94 during this quarter. This tranche has appreciated by $40,940,285.40, with a current value of $138,569,956.98. The cumulative effect of these additions has more than doubled the original position size to 11,451,981 shares.

Investment Performance Analysis

The data reveals that Ackman’s timing on the initial entry was particularly advantageous, yielding the highest absolute gain among the three purchase tranches. The initial stake, acquired at lower valuations, now accounts for the majority of the portfolio’s value and appreciation. The subsequent additions in Q4 2025 and Q1 2026, while profitable, entered at higher price points, resulting in smaller percentage gains relative to the initial block. This layered approach allowed Pershing Square to maintain significant exposure while averaging up on a high-conviction bet. The next 13F filing, due by Aug. 14, will disclose whether the position remained unchanged or underwent further adjustments during the second quarter of 2026.

Amazon.com Inc shares surged more than 15% to $271.03 in Friday’s trading after the e-commerce and cloud computing giant reported second-quarter 2026 earnings per share of $5.75, significantly surpassing the analyst consensus estimate of $1.82. The company posted quarterly revenue of $201 billion, beating expectations of $197 billion. This performance signals that returns on massive artificial intelligence infrastructure investments are materializing faster than anticipated, with management stating that Amazon is already monetizing its AI capabilities rather than just investing for the future.

The earnings beat was driven by robust growth in its Amazon Web Services (AWS) division and a 43% year-over-year climb in total operating income to $27.5 billion. Andy Jassy, president and CEO of Amazon, stated that AWS is booming with 36.7% year-over-year growth in Q2, noting that AI and custom-chip businesses each eclipsed annualized revenue run rates of more than $25 billion. BNP Paribas analyst Nick Jones noted that management now views AWS as potentially a $1 trillion business over time, up from previous estimates of several hundred billion dollars.

Total revenue increased significantly year-over-year, with North America contributing $116.2 billion and international operations generating $42.2 billion. AWS reported $42.2 billion in revenue, surging 37% year-over-year, marking the fastest growth rate for the cloud unit in 18 quarters. The high-margin advertising business also grew 26%, providing additional support for profitability. Chris Ballard, managing director at Check Capital Management, described the results as an "emphatic answer to skepticism," calling AWS Amazon’s "crown jewel" and noting that infrastructure spending is increasingly translating into revenue growth.

Operating cash flow rose 33% to $161.4 billion for the trailing 12 months. However, free cash flow turned negative, resulting in an outflow of $7.6 billion, driven by a $66.1 billion year-over-year increase in property and equipment purchases for AI infrastructure. CEO Andy Jassy told analysts during the earnings call that the company now expects to spend $220 billion on capital expenditures this year, up from the roughly $200 billion forecast previously given. This increased spending reflects higher memory costs and capacity constraints that management stated fall short of demand through 2027.

Market Reaction and Analyst Sentiment

Wall Street reacted positively to the results, with multiple sell-side firms raising price targets. Benchmark analyst Daniel Kurnos delivered the most bullish call, raising his target to $400 from $370, writing that this might be one of the most impressive quarters in at least the last 10 years. JPMorgan Chase & Co analyst Doug Anmuth lifted his target to $365 from $330, calling AWS’s acceleration “the fastest in 18 quarters.” KeyBanc Capital Markets raised its target to $350 from $335, highlighting Bedrock’s role in reaccelerating cloud growth. Rosenblatt Securities analyst Barton Crockett raised his target to $345 from $332, noting AWS “finally joined the AI growth party.”

BofA Securities raised its price objective to $320 from $310, flagging AWS margins up 600 basis points year-over-year as evidence of durable capacity returns. Wedbush Securities analysts Ygal Arounian and Chase Tohanczyn raised their target to $310 from $293, calling the print “the cleanest beat among the hyperscalers.” Needham & Co. analysts Laura Martin and Dan Medina maintained a $300 target, highlighting Bedrock’s momentum: Amazon added more customers in 1H26 than in its first two years combined. D.A. Davidson analyst Gil Luria held his Neutral rating and $250 price target, acknowledging the beat but flagging climbing capital spending as a reason for caution.

What the Numbers Show

The divergence between operating cash flow and free cash flow highlights a strategic pivot toward capital-intensive AI infrastructure. While operating cash flow grew strongly at 33%, the massive $66.1 billion increase in capital expenditures absorbed liquidity, turning free cash flow negative. This indicates that Amazon is prioritizing long-term technological capability over immediate cash generation. Futurum Equities’ Shay Boloor cited Amazon’s "striking" outlook for AI demand into 2028 and higher capital spending forecast as bullish indicators for chipmakers Micron Technology Inc, SK Hynix Inc, and SanDisk Corp, noting that capacity still falls short of demand. Mahaney also noted that Amazon’s third-quarter revenue guidance appeared softer mainly because Prime Day shifted into the second quarter, rather than due to weaker consumer demand. With a $496 billion AWS backlog and Graviton commitments nearly tripling quarter-over-quarter, analysts largely shrugged off the negative free cash flow, viewing the heavy investment as necessary to sustain the 37% growth rate.