TTMI · Serenity viewpoints

Serenity @aleabitoreddit

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Focused on AI photonics and semiconductor supply chains — sourcing asymmetric setups from bottoms-up value-chain research. Tracks CPO & optical modules closely, with ongoing deep-dives on SIVE, AAOI, LITE, POET.

Quick verdict

TTMI is neutral (0 bull · 0 bear)

Named as a manufacturer of multilayer boards, which are facing ~6 months of supply bottlenecks.

Last spoke: 07/20/2026, 06:22 · no conviction

8-10 confidence views use larger markers▲ Bull▼ Bear● Mention

View History (1, newest first)

07/20/2026, 06:22UTCMentionView on X →
Some updates on bottleneck timelines: - ABF substrates: 1 year / eg. Ajinomoto (2802) for ABF film, Ibiden, Unimicron, Nan Ya PCB, etc make the substrates - HDI Boards: Over 6 months / Victory Giant (300476), Zhen Ding (4958), Unimicron, Compeq (2313), Meiko (6787) - Multilayer boards: ~6 months / Victory Giant, WUS (002463), $TTMI, Gold Circuit Electronics (2368), - CCL: Over 6 months (severe shortages of materials) / Elite Material (2383), Shengyi (600183), TUC (6274), ITEQ (6213), Nan Ya Plastics (1303), Resonac (4004) Mitsui Kinzoku (5706) / HVLP copper foil. Nittobo / glass fiber/cloth - MLCCs, chip resistors, tantalum capacitors, aluminum electrolytic capacitors: 15-20 weeks to 1 year+ MLCC: Murata (6981), Samsung Electro-Mechanics, TDK (6762), Taiyo Yuden (6976), Yageo (2327), Walsin (2492) Chip Resistors: Yageo, Walsin, KOA (6999), Rohm (6963) and $VSH Tantalum capacitors: Kyocera/AVX, Yageo/KEMET, $VSH again Aluminum electrolytic capacitors: Nippon Chemi-Con (6997) Nichicon (6996) | Timelines sourced from Digitimes, did the honors of adding in related companies. But it's slightly more nuanced since MLCCs and others mix. in commodity types vs. AI DCs. Regardless, just some helpful mapping.

Ongoing takes on other optical names too

Beyond TTMI, his viewpoint library also covers:

$SIVE · 245 takes $NVDA · 140 takes $AAOI · 134 takes

All tracked tickers →Institutional, insider & congressional activity →

View History (1, newest first)

07/20/2026, 06:22UTCMentionView on X →

Some updates on bottleneck timelines: - ABF substrates: 1 year / eg. Ajinomoto (2802) for ABF film, Ibiden, Unimicron, Nan Ya PCB, etc make the substrates - HDI Boards: Over 6 months / Victory Giant (300476), Zhen Ding (4958), Unimicron, Compeq (2313), Meiko (6787) - Multilayer boards: ~6 months / Victory Giant, WUS (002463), $TTMI, Gold Circuit Electronics (2368), - CCL: Over 6 months (severe shortages of materials) / Elite Material (2383), Shengyi (600183), TUC (6274), ITEQ (6213), Nan Ya Plastics (1303), Resonac (4004) Mitsui Kinzoku (5706) / HVLP copper foil. Nittobo / glass fiber/cloth - MLCCs, chip resistors, tantalum capacitors, aluminum electrolytic capacitors: 15-20 weeks to 1 year+ MLCC: Murata (6981), Samsung Electro-Mechanics, TDK (6762), Taiyo Yuden (6976), Yageo (2327), Walsin (2492) Chip Resistors: Yageo, Walsin, KOA (6999), Rohm (6963) and $VSH Tantalum capacitors: Kyocera/AVX, Yageo/KEMET, $VSH again Aluminum electrolytic capacitors: Nippon Chemi-Con (6997) Nichicon (6996) | Timelines sourced from Digitimes, did the honors of adding in related companies. But it's slightly more nuanced since MLCCs and others mix. in commodity types vs. AI DCs. Regardless, just some helpful mapping.