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Written By pyuncut

Quiet Giants & Mega-Caps: Top 8 Stocks to Buy in September

Quiet Giants & Mega-Caps: Top 8 Stocks to Buy in September

Balancing AI infrastructure growth with value to beat the index without chasing hype.

AI Infrastructure Mega-Cap Value Rate-Cut Playbook

Quick Takeaways

  • AppLovin up 2,000% in three years; 70% YTD—quiet compounding beats hype.
  • Vertiv Q2 revenue $2.6B, up 35% YoY; backlog $7.9B.
  • Arista Q2 revenue $2.2B, up 30% YoY; gross margin >60%.
  • ASML high-NA EUV tools process ~60% more wafers/day—sticky service revenue.
  • Broadcom AI chip/networking revenue $5.2B, up 63% YoY; backlog $110B.
  • Super Micro shipping up to 5,000 AI racks/month; liquid-cooled by default.
  • TSMC controls ~70% foundry share; CoWoS capacity a key bottleneck.
  • Alphabet at ~23x earnings; FCF yield ~4.5%—durable growth at a discount.
  • MongoDB revenue up 24% YoY; Atlas up 29% YoY—watch for margin inflection.
Growth snapshot bar chart
Momentum across the watchlist: YTD/YoY growth signals.
Backlog comparison bar chart
Backlog provides visibility and cushions macro volatility.

Vertiv (VRT)

Liquid cooling & high-efficiency power systems enabling dense AI racks; PEG ~0.8 offers growth-at-a-reasonable-price.

  • Q2 revenue $2.6B (+35% YoY)
  • Backlog $7.9B; cooling market set to more than double by 2030

Arista Networks (ANET)

Ethernet’s AI moment; EOS Smart AI turns Ethernet into AI-grade fabric.

  • Q2 revenue $2.2B (+30% YoY)
  • Gross margin >60%; 800G shipping, path to 1.6T

ASML (ASML)

High-NA EUV is the tollbooth for next-gen chips; services/upgrade flywheel.

  • Throughput ~+60% vs prior EUV gen
  • Installed base expansion = recurring cash flows

Broadcom (AVGO)

AI networking + custom accelerators + VMware software = diversified AI cash engine.

  • AI chip & networking $5.2B (+63% YoY)
  • Backlog ~$110B; Jericho 4 & Tomahawk Ultra cycles

Super Micro (SMCI)

Rack-scale integrator with speed moat; Blackwell-class liquid-cooled racks.

  • Capacity ~5,000 racks/month (2,000 liquid-cooled)
  • Q4 FY25 revenue +25% QoQ

Taiwan Semiconductor (TSMC)

Dominant foundry & packaging (CoWoS) capacity; pricing power intact.

  • 3nm ~24% of wafer revenue; 2nm roadmap 2026
  • Aug revenue +33.8% YoY; YTD >37%

Alphabet (GOOGL)

Under-valued mega-cap growth with 4.5% FCF yield; diversified AI leverage.

  • Trades ~23x earnings (below 5-yr median and peers)
  • Search, Cloud, YouTube compounding

MongoDB (MDB)

Atlas simplifies AI app data; watch for sustained margin turn to trigger re-rating.

  • Revenue $591M (+24% YoY)
  • Atlas +29% YoY; tight hyperscaler integrations

Strategy & Catalysts

Playbook: Pair under-the-radar growth (Vertiv, Arista, Super Micro) with durable toll booths (ASML, TSMC) and cash-rich mega-caps (Alphabet, Broadcom). Keep optionality with a data-layer compounder (MongoDB).

  • Macro: Sticky inflation > higher for longer; a later pivot could re-rate both mega-caps and small caps.
  • Earnings tape: Data-center suppliers’ prints and orders are the near-term truth serum.
  • Tech cycle: Ethernet AI fabrics, high-NA EUV rollout, Blackwell shipments, CoWoS throughput.
  • Risk: Supply bottlenecks (packaging, HBM), enterprise spend digestion, geopolitics.

Disclosure & Notes

This report is for informational purposes only and does not constitute investment advice or a solicitation to buy or sell any securities. Figures are drawn from company commentary referenced in your source script and may be rounded.

Compiled on September 26, 2025 • © PyUncut

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