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PhotonCap

PhotonCap, Nutty, Damnang
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Seeing tech through a different wavelength. Photonics & semiconductor research

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PricingFreemiumPublishesDaily
Issues86Founded6 months agoLast Issue5 days ago
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Latest Issues

DSP, LPO, NPO, CPO: The Four Optical Architectures and the Light Source Beneath Them All

$LITE $COHR $AAOI $SIVE $POET | Optical Architecture Primer + Light Source Map

On June 9, an institutional-only SemiAnalysis note lit the fuse, and optics names dropped together. AAOI fell 14%, COHR 11%, LITE 8% [1][2]. The market’s logic...

5 days ago
30
3
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There Is No Such Thing as a 'CPO Stock': How the Market Misread SemiAnalysis

$LITE $COHR $MRVL $AVGO $POET | CPO Delay Selloff, Reader Mailbag Edition

On June 9, an institutional-only SemiAnalysis note read as a “CPO rollout delay” and optical networking stocks broke in a single session. AAOI down 14%, COHR down 11...

7 days ago
26
3
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NVIDIA Did Not Come to Korea to Sell GPUs: Where the June 5 Seoul Visit Pointed in the Physical AI Supply Chain

$NVDA | Hyundai, Samsung, Rainbow Robotics, SPG, ROBOTIS | What Jensen’s Seoul Visit Signals for Physical AI

On June 5, 2026, Jensen Huang came to Seoul. The market read the visit as an HBM4 and GPU event. Huang named Samsung, SK hynix, an...

9 days ago
15
1
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The Largest IPO in History, One Profitable Layer: Where SpaceX Exposure Really Sits, and the Traps

$SPCX $COHR $LITE $MRVL $RKLB $CACI $NVDA | SpaceX Pre-IPO Beneficiary & Layer Exposure Analysis

SpaceX, the largest IPO in history (ticker SPCX, targeting a June 12 Nasdaq debut at a $1.75T valuation), posted a loss in its most recent fis...

10 days ago
17
4
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Taiwan GTC (Computex 2026): CPO Just Entered Production, So Why Are Coherent and Lumentum, the Companies It Was Supposed to Kill, Still on the Supplier List?

$NVDA $COHR $LITE $GLW $FN $TSM | Spectrum-X Photonics Goes Production: The CPO Supply Chain

On May 31, 2026 (US press release date, Taiwan GTC Taipei keynote), NVIDIA called Spectrum-X Ethernet Photonics “now in production.” It is the wor...

13 days ago
23
7
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Authors

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  • PhotonCap

    Seeing tech through a different wavelength. Photonics & semiconductor research

  • Nutty

    Analog IC Design Engineer in Silicon Valley. Writing about circuits, semiconductors & industry.

  • Damnang

    EE Ph.D. and Silicon Valley semiconductor engineer making complex technology easy to understand

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