Alex Sacerdote

Founder and Portfolio Manager, Whale Rock Capital Management
· tracked since Jun 2026
Calls 10 1 Posts tracked · 1.0/day Posted today
Calls
7d 10
30d 10
90d 10
Win Rate - Long 9 Short 1
Win Rate
7d
30d
90d
Average Return - Long Return - Short Return -
Average Return
7d
30d
90d
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Entry
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Thesis
Theme
Source
Long
Jun 09
$209.23
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Nvidia at 4x earnings was deeply undervalued.
Nvidia was bought at 4x earnings in 2023 because the AI S-curve is just beginning, with the infrastructure layer only 10% penetrated. The demand for compute is exploding, and Nvidia is the dominant chip supplier with massive earnings power not yet appreciated by the market.
AI/Semi
Long
Jun 09
$363.87
-
Google is a top AI winner.
Google is one of our largest positions. It has a strong consumer franchise with Gemini, a huge cash cow to fund AI, and is one of three likely winners in the foundational model oligopoly. Google's enterprise strength and ability to compete in coding make it a key AI bet.
AI/Semi
Long
Jun 09
$244.61
-
Amazon AWS had underappreciated earnings power.
Amazon was bought for AWS at a time when it was effectively free – the market was valuing it as a retail company while AWS had massive underappreciated earnings power as a cloud platform with a 7-year lead, scale advantages, and a huge TAM. The S-curve for cloud was just getting started.
Consumer
Long
Jun 09
$395.00
-
Celestica is critical AI infrastructure with advantages.
Celestica has transformed from a commoditized contract manufacturer to a critical AI infrastructure supplier – sole supplier of Google TPU servers, dominant in liquid cooling, and has 50-60% share of cloud Ethernet switch market. AI servers are 40x more expensive than old servers and require constant innovation, making Celestica a high-growth, high-margin business with rising competitive advantages.
AI/Semi
Long
Jun 09
$412.00
-
Tesla bought at 5x earnings in 2019.
Tesla was bought in 2019 at 5x earnings because the electric vehicle S-curve was just inflecting – barriers to adoption (price, range, supply chain) had been removed, leading to exponential unit growth. The underappreciated earnings power at that point was enormous.
Consumer
Long
Jun 09
$299.64
-
Apple at 4x earnings during smartphone inflection.
Apple was bought at 4x earnings because the smartphone S-curve was inflecting – Jobs brought iPhone to $200, AT&T had 3G, touchscreen made it easy. Exponential unit growth and a powerful ecosystem (app store, switching costs) led to enormous earnings growth that the market didn't anticipate.
Consumer
Long
Jun 09
$2425.00
-
Delta and Advanced Energy gain from AI power needs.
Delta Electronics and Advanced Energy supply power supplies for AI servers. Each new Nvidia chip/rack uses 50-125% more power, driving ASPs up 40% per year for the next four years with higher margins. This is a clear beneficiary of the AI infrastructure buildout where demand outstrips supply.
Other
Long
Jun 09
$193.86
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Corning benefits from AI fiber demand.
Corning is the dominant fiber supplier for data centers, with a very high share and a product that is thinner, more bendable, and custom-manufactured. AI needs massive fiber (e.g., one Microsoft data center uses enough to circle Earth 4.5x). Future scale-up connections (copper to fiber) will 2-3x Corning's opportunity. Its fiber business is the fastest-growing, highest-margin part of the company.
Photonics
Short
Jun 09
$95.43
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Short application software incumbents.
We sold almost all application software and were net short entering 2025. The thesis is that AI is disrupting the old software model: AI products from incumbents are not good, CIO budgets are shifting to AI tokens, pricing power is eroding, seats are decreasing, and new AI-native startups could wipe out incumbents. The valuations are high and the AI exposure of most software companies is tiny (1-2% of sales).
AI/Semi
Long
Jun 09
$306.11
-
Delta and Advanced Energy gain from AI power needs.
Delta Electronics and Advanced Energy supply power supplies for AI servers. Each new Nvidia chip/rack uses 50-125% more power, driving ASPs up 40% per year for the next four years with higher margins. This is a clear beneficiary of the AI infrastructure buildout where demand outstrips supply.
AI/Semi
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