Sergey
@sergeycyw.bsky.social
I talk about growth stock investing and fundamental analysis with a long-term mindset. I provide earnings reviews and key news updates. Not investment advice.
SergeyCYW.substack.com
SergeyCYW.substack.com
Top 10 Ai Companies: Where Money Is Really Going 🧵
Capital is flowing toward companies controlling bottlenecks: compute, memory, software, or distribution. YTD performance reflects where leverage sits today. 👇
$NBIS | +198.7% YTD
Capital is flowing toward companies controlling bottlenecks: compute, memory, software, or distribution. YTD performance reflects where leverage sits today. 👇
$NBIS | +198.7% YTD
December 26, 2025 at 11:59 AM
Top 10 Ai Companies: Where Money Is Really Going 🧵
Capital is flowing toward companies controlling bottlenecks: compute, memory, software, or distribution. YTD performance reflects where leverage sits today. 👇
$NBIS | +198.7% YTD
Capital is flowing toward companies controlling bottlenecks: compute, memory, software, or distribution. YTD performance reflects where leverage sits today. 👇
$NBIS | +198.7% YTD
SaaS Is Becoming the Profit Engine of AI 🧵
AI spending started with chips and data centers.
The next leg is software.
AI spending started with chips and data centers.
The next leg is software.
December 25, 2025 at 2:59 PM
SaaS Is Becoming the Profit Engine of AI 🧵
AI spending started with chips and data centers.
The next leg is software.
AI spending started with chips and data centers.
The next leg is software.
The Big Data market is entering a powerful expansion phase. Estimates point to a $400B–$960B opportunity with roughly 14% CAGR through 2030.
The highest expected revenue growth, above 20%, is concentrated in a small group of platforms.
The highest expected revenue growth, above 20%, is concentrated in a small group of platforms.
December 25, 2025 at 1:57 PM
The Big Data market is entering a powerful expansion phase. Estimates point to a $400B–$960B opportunity with roughly 14% CAGR through 2030.
The highest expected revenue growth, above 20%, is concentrated in a small group of platforms.
The highest expected revenue growth, above 20%, is concentrated in a small group of platforms.
AI is no longer an add-on in digital advertising.
Video is where AI impact is most visible.
Global video advertising spend is projected to reach $207.5B in 2025, reinforcing the shift toward AI-optimized visual storytelling.
Video is where AI impact is most visible.
Global video advertising spend is projected to reach $207.5B in 2025, reinforcing the shift toward AI-optimized visual storytelling.
December 25, 2025 at 12:02 PM
AI is no longer an add-on in digital advertising.
Video is where AI impact is most visible.
Global video advertising spend is projected to reach $207.5B in 2025, reinforcing the shift toward AI-optimized visual storytelling.
Video is where AI impact is most visible.
Global video advertising spend is projected to reach $207.5B in 2025, reinforcing the shift toward AI-optimized visual storytelling.
Top 10 Stocks on My Watchlist 👀
1. $ZETA | Zeta Global
2. $MU | Micron Technology
3. $AMD | AMD
4. $ARM | Arm
5. $RBRK | Rubrik
6. $FIG | Figma
7. $NBIS | Nebius
8. $IREN | IREN Limited
9. $S | SentinelOne
10. $NU | Nu Holdings
I don’t own them, but I’m considering buying.
1. $ZETA | Zeta Global
2. $MU | Micron Technology
3. $AMD | AMD
4. $ARM | Arm
5. $RBRK | Rubrik
6. $FIG | Figma
7. $NBIS | Nebius
8. $IREN | IREN Limited
9. $S | SentinelOne
10. $NU | Nu Holdings
I don’t own them, but I’m considering buying.
December 24, 2025 at 4:37 PM
Top 10 Stocks on My Watchlist 👀
1. $ZETA | Zeta Global
2. $MU | Micron Technology
3. $AMD | AMD
4. $ARM | Arm
5. $RBRK | Rubrik
6. $FIG | Figma
7. $NBIS | Nebius
8. $IREN | IREN Limited
9. $S | SentinelOne
10. $NU | Nu Holdings
I don’t own them, but I’m considering buying.
1. $ZETA | Zeta Global
2. $MU | Micron Technology
3. $AMD | AMD
4. $ARM | Arm
5. $RBRK | Rubrik
6. $FIG | Figma
7. $NBIS | Nebius
8. $IREN | IREN Limited
9. $S | SentinelOne
10. $NU | Nu Holdings
I don’t own them, but I’m considering buying.
Why #GOOGL Is the Only Company That Truly Owns the Entire AI Stack 👇
Most AI leaders control parts of the stack.
Google controls all of it—from silicon to users—under one balance sheet.
That structural integration is starting to show up in cost curves, scale, and adoption.
Most AI leaders control parts of the stack.
Google controls all of it—from silicon to users—under one balance sheet.
That structural integration is starting to show up in cost curves, scale, and adoption.
December 24, 2025 at 4:03 PM
Why #GOOGL Is the Only Company That Truly Owns the Entire AI Stack 👇
Most AI leaders control parts of the stack.
Google controls all of it—from silicon to users—under one balance sheet.
That structural integration is starting to show up in cost curves, scale, and adoption.
Most AI leaders control parts of the stack.
Google controls all of it—from silicon to users—under one balance sheet.
That structural integration is starting to show up in cost curves, scale, and adoption.
5 Great undervalued growth stocks the market is still misreading 🧵
Valuations are compressing while fundamentals is improve. A few stocks stand out where execution is accelerating but multiples have not rerated. 👇
Valuations are compressing while fundamentals is improve. A few stocks stand out where execution is accelerating but multiples have not rerated. 👇
December 24, 2025 at 2:57 PM
5 Great undervalued growth stocks the market is still misreading 🧵
Valuations are compressing while fundamentals is improve. A few stocks stand out where execution is accelerating but multiples have not rerated. 👇
Valuations are compressing while fundamentals is improve. A few stocks stand out where execution is accelerating but multiples have not rerated. 👇
5 Best Stocks to Hold Long Term — Where Moats Still Matter 🧵
Markets rotate. Business models compound.
Long-term winners tend to share three traits: structural tailwinds, pricing power, and capital discipline.
Here are five names where fundamentals still look asymmetric. 👇
1/ $V — Visa
Markets rotate. Business models compound.
Long-term winners tend to share three traits: structural tailwinds, pricing power, and capital discipline.
Here are five names where fundamentals still look asymmetric. 👇
1/ $V — Visa
December 24, 2025 at 2:04 PM
5 Best Stocks to Hold Long Term — Where Moats Still Matter 🧵
Markets rotate. Business models compound.
Long-term winners tend to share three traits: structural tailwinds, pricing power, and capital discipline.
Here are five names where fundamentals still look asymmetric. 👇
1/ $V — Visa
Markets rotate. Business models compound.
Long-term winners tend to share three traits: structural tailwinds, pricing power, and capital discipline.
Here are five names where fundamentals still look asymmetric. 👇
1/ $V — Visa
Digital advertising is no longer about recovery.
It’s about scale, automation, and capital concentration. 🧵
The market is already $843B in 2025 and is expected to reach $1.42T by 2029, growing at a 14% CAGR.
Analysts expect the strongest NTM revenue growth from:
It’s about scale, automation, and capital concentration. 🧵
The market is already $843B in 2025 and is expected to reach $1.42T by 2029, growing at a 14% CAGR.
Analysts expect the strongest NTM revenue growth from:
December 24, 2025 at 1:29 PM
Digital advertising is no longer about recovery.
It’s about scale, automation, and capital concentration. 🧵
The market is already $843B in 2025 and is expected to reach $1.42T by 2029, growing at a 14% CAGR.
Analysts expect the strongest NTM revenue growth from:
It’s about scale, automation, and capital concentration. 🧵
The market is already $843B in 2025 and is expected to reach $1.42T by 2029, growing at a 14% CAGR.
Analysts expect the strongest NTM revenue growth from:
Semiconductors: key players 👇
#NVDA - Dominates AI computing with Blackwell GPUs and CUDA software, powering global data centers and deep learning workloads.
#NVDA - Dominates AI computing with Blackwell GPUs and CUDA software, powering global data centers and deep learning workloads.
December 24, 2025 at 1:02 PM
Semiconductors: key players 👇
#NVDA - Dominates AI computing with Blackwell GPUs and CUDA software, powering global data centers and deep learning workloads.
#NVDA - Dominates AI computing with Blackwell GPUs and CUDA software, powering global data centers and deep learning workloads.
Magnificent 7 — Forward P/E vs. 2026E revenue growth:
$META 22.6x | +18.2%
$NVDA 27.1x | +53.6%
$GOOGL 29.6x | +13.4%
$MSFT 29.2x | +18.3%
$AMZN 31.2x | +11.2%
$AAPL 33.1x | +10.8%
$TSLA 241x | +12.0%
$META 22.6x | +18.2%
$NVDA 27.1x | +53.6%
$GOOGL 29.6x | +13.4%
$MSFT 29.2x | +18.3%
$AMZN 31.2x | +11.2%
$AAPL 33.1x | +10.8%
$TSLA 241x | +12.0%
December 24, 2025 at 12:33 PM
Magnificent 7 — Forward P/E vs. 2026E revenue growth:
$META 22.6x | +18.2%
$NVDA 27.1x | +53.6%
$GOOGL 29.6x | +13.4%
$MSFT 29.2x | +18.3%
$AMZN 31.2x | +11.2%
$AAPL 33.1x | +10.8%
$TSLA 241x | +12.0%
$META 22.6x | +18.2%
$NVDA 27.1x | +53.6%
$GOOGL 29.6x | +13.4%
$MSFT 29.2x | +18.3%
$AMZN 31.2x | +11.2%
$AAPL 33.1x | +10.8%
$TSLA 241x | +12.0%
#TTD: Growth Looks Slower — Until Political Revenue Is Stripped Out
At first glance, Q3 looked uninspiring. Reported revenue growth slowed to +17.7% YoY, down sharply from +27.4% a year ago. Q4 guidance implies similar deceleration. Free cash flow margin compressed.
At first glance, Q3 looked uninspiring. Reported revenue growth slowed to +17.7% YoY, down sharply from +27.4% a year ago. Q4 guidance implies similar deceleration. Free cash flow margin compressed.
December 24, 2025 at 12:04 PM
#TTD: Growth Looks Slower — Until Political Revenue Is Stripped Out
At first glance, Q3 looked uninspiring. Reported revenue growth slowed to +17.7% YoY, down sharply from +27.4% a year ago. Q4 guidance implies similar deceleration. Free cash flow margin compressed.
At first glance, Q3 looked uninspiring. Reported revenue growth slowed to +17.7% YoY, down sharply from +27.4% a year ago. Q4 guidance implies similar deceleration. Free cash flow margin compressed.
Big Data growth is meeting real constraints 🧵
Big Data platforms still benefit from recurring revenue, high gross margins, and expanding AI use cases. Data infrastructure remain embedded in enterprise workflows, supporting long-term demand for #DDOG, #ESTC, #PLTR, #CRM, #ORCL, #SAP, #NOW, #CFLT.
Big Data platforms still benefit from recurring revenue, high gross margins, and expanding AI use cases. Data infrastructure remain embedded in enterprise workflows, supporting long-term demand for #DDOG, #ESTC, #PLTR, #CRM, #ORCL, #SAP, #NOW, #CFLT.
December 23, 2025 at 4:04 PM
The AI power race has already started 👇
As AI scales, the real constraint is no longer GPUs or data. It’s megawatts.
Hyperscalers are racing to secure power at the same pace they’re building compute, and the grid isn’t ready.
As AI scales, the real constraint is no longer GPUs or data. It’s megawatts.
Hyperscalers are racing to secure power at the same pace they’re building compute, and the grid isn’t ready.
December 23, 2025 at 2:58 PM
The AI power race has already started 👇
As AI scales, the real constraint is no longer GPUs or data. It’s megawatts.
Hyperscalers are racing to secure power at the same pace they’re building compute, and the grid isn’t ready.
As AI scales, the real constraint is no longer GPUs or data. It’s megawatts.
Hyperscalers are racing to secure power at the same pace they’re building compute, and the grid isn’t ready.
The Trade Desk After the Drawdown: What the Market Is Missing 🧵
#TTD is down -68.3% YTD, while S&P500 up +17.2%.
Should you invest now? Let’s examine the valuation, growth rate, key metrics, profitability, and expenses. 👇
#TTD is down -68.3% YTD, while S&P500 up +17.2%.
Should you invest now? Let’s examine the valuation, growth rate, key metrics, profitability, and expenses. 👇
December 23, 2025 at 1:57 PM
The Trade Desk After the Drawdown: What the Market Is Missing 🧵
#TTD is down -68.3% YTD, while S&P500 up +17.2%.
Should you invest now? Let’s examine the valuation, growth rate, key metrics, profitability, and expenses. 👇
#TTD is down -68.3% YTD, while S&P500 up +17.2%.
Should you invest now? Let’s examine the valuation, growth rate, key metrics, profitability, and expenses. 👇
Top Wall Street analysts are most bullish on these 5 S&P500 stocks. 🧵
I’m aligned with them on these names.
Here’s the bull case where fundamentals, positioning, and setup still look asymmetric. 👇
1/ #DDOG | Datadog
Analysts PT $212.3 | +50% upside
I’m aligned with them on these names.
Here’s the bull case where fundamentals, positioning, and setup still look asymmetric. 👇
1/ #DDOG | Datadog
Analysts PT $212.3 | +50% upside
December 23, 2025 at 12:58 PM
Top Wall Street analysts are most bullish on these 5 S&P500 stocks. 🧵
I’m aligned with them on these names.
Here’s the bull case where fundamentals, positioning, and setup still look asymmetric. 👇
1/ #DDOG | Datadog
Analysts PT $212.3 | +50% upside
I’m aligned with them on these names.
Here’s the bull case where fundamentals, positioning, and setup still look asymmetric. 👇
1/ #DDOG | Datadog
Analysts PT $212.3 | +50% upside
The global semiconductor industry is moving beyond a cyclical rebound into a structurally driven growth phase, powered by AI, data centers, and rising silicon content across end markets. 👇
December 23, 2025 at 11:58 AM
The global semiconductor industry is moving beyond a cyclical rebound into a structurally driven growth phase, powered by AI, data centers, and rising silicon content across end markets. 👇
Let's consider the Rule of 40 metric for evaluating SaaS* companies compared to valuation by Forward EV/S multiple.
The Rule of 40 helps investors balance growth and profitability, offering deeper insights into company efficiency, unlike EV/S multiples which reflect only revenue expectations.
The Rule of 40 helps investors balance growth and profitability, offering deeper insights into company efficiency, unlike EV/S multiples which reflect only revenue expectations.
December 22, 2025 at 3:27 PM
Let's consider the Rule of 40 metric for evaluating SaaS* companies compared to valuation by Forward EV/S multiple.
The Rule of 40 helps investors balance growth and profitability, offering deeper insights into company efficiency, unlike EV/S multiples which reflect only revenue expectations.
The Rule of 40 helps investors balance growth and profitability, offering deeper insights into company efficiency, unlike EV/S multiples which reflect only revenue expectations.
10 most promising stocks to watch in 2026 🧵
Operating leverage, capital discipline, and control over critical infrastructure are becoming the real differentiators.
1/ $PLTR
Operating leverage, capital discipline, and control over critical infrastructure are becoming the real differentiators.
1/ $PLTR
December 22, 2025 at 2:04 PM
10 most promising stocks to watch in 2026 🧵
Operating leverage, capital discipline, and control over critical infrastructure are becoming the real differentiators.
1/ $PLTR
Operating leverage, capital discipline, and control over critical infrastructure are becoming the real differentiators.
1/ $PLTR
AI scale is exposing the weak points in Big Data 👇
The Big Data and security markets are no longer fighting demand. They are fighting execution, cost, and trust.
The Big Data and security markets are no longer fighting demand. They are fighting execution, cost, and trust.
December 22, 2025 at 1:02 PM
AI scale is exposing the weak points in Big Data 👇
The Big Data and security markets are no longer fighting demand. They are fighting execution, cost, and trust.
The Big Data and security markets are no longer fighting demand. They are fighting execution, cost, and trust.
AI Infrastructure is the new industrial revolution 👇
Every AI model sits on a four-layer stack worth trillions. Each layer compounds the next—manufacturing, chips, networking, and cloud.
Layer 1: Manufacturing chokehold
Every AI model sits on a four-layer stack worth trillions. Each layer compounds the next—manufacturing, chips, networking, and cloud.
Layer 1: Manufacturing chokehold
December 22, 2025 at 12:40 PM
AI Infrastructure is the new industrial revolution 👇
Every AI model sits on a four-layer stack worth trillions. Each layer compounds the next—manufacturing, chips, networking, and cloud.
Layer 1: Manufacturing chokehold
Every AI model sits on a four-layer stack worth trillions. Each layer compounds the next—manufacturing, chips, networking, and cloud.
Layer 1: Manufacturing chokehold
Most interesting stocks right now 👇
Hyperscalers: $AMZN $GOOGL
AI Infra: $IREN $NBIS
Agentic AI: $PLTR $NOW $SNOW
Cybersecurity: $NET $RBRK $CRWD
Fintech: $FOUR $SOFI $DLO
E-commerce: $GRAB $MELI $SE $SHOP
Semiconductors: $NVDA $AMD $ALAB $MU
Hyperscalers: $AMZN $GOOGL
AI Infra: $IREN $NBIS
Agentic AI: $PLTR $NOW $SNOW
Cybersecurity: $NET $RBRK $CRWD
Fintech: $FOUR $SOFI $DLO
E-commerce: $GRAB $MELI $SE $SHOP
Semiconductors: $NVDA $AMD $ALAB $MU
December 21, 2025 at 3:27 PM
Most interesting stocks right now 👇
Hyperscalers: $AMZN $GOOGL
AI Infra: $IREN $NBIS
Agentic AI: $PLTR $NOW $SNOW
Cybersecurity: $NET $RBRK $CRWD
Fintech: $FOUR $SOFI $DLO
E-commerce: $GRAB $MELI $SE $SHOP
Semiconductors: $NVDA $AMD $ALAB $MU
Hyperscalers: $AMZN $GOOGL
AI Infra: $IREN $NBIS
Agentic AI: $PLTR $NOW $SNOW
Cybersecurity: $NET $RBRK $CRWD
Fintech: $FOUR $SOFI $DLO
E-commerce: $GRAB $MELI $SE $SHOP
Semiconductors: $NVDA $AMD $ALAB $MU
The Rule of 40 is a pivotal financial metric used to evaluate the performance of SaaS and other growth-oriented software companies. It serves as a benchmark that balances revenue growth and profitability, providing a comprehensive snapshot of a company's overall financial health.
December 21, 2025 at 2:26 PM
The Rule of 40 is a pivotal financial metric used to evaluate the performance of SaaS and other growth-oriented software companies. It serves as a benchmark that balances revenue growth and profitability, providing a comprehensive snapshot of a company's overall financial health.