［Week 6–Portfolio Health Check: From Stock Picking to System Thinking]

1️⃣ What Changed Since Week 1

At the start, my portfolio was mostly built around finding strong individual companies. After six weeks, the thinking has become more connected.

I started to see that the better question is not just “which stock can go up?”, but “where is the money actually flowing?” AI demand does not stop at chips. It pulls in power, cooling, storage, networking and hardware. That is why my portfolio gradually moved from single-name conviction into a fuller infrastructure chain.

2️⃣ Earnings Read

NVDA’s earnings confirmed that data center demand remains strong. My direct NVDA position is small, but its results matter because NVDA is a key signal for the whole AI infrastructure cycle.

That is why WDC and SOXL moved strongly, while VRT, TTMI and POWL still matter even when their short-term P/L looks different.

3️⃣ Portfolio Reaction

WDC is now close to +90%, SOXL is above +40%, and FIX remains the largest anchor despite pulling back from earlier highs.

VRT and POWL are currently red, but I do not see that as automatically wrong. For these names, I care more about backlog, margins, ROIC direction and whether demand is still improving. A short-term red number is not the same as a broken thesis.

4️⃣ My Read Now

The biggest lesson from this challenge is that concentration is not always the enemy. Unclear thinking is.

This portfolio is concentrated, but it has a reason. Each position is meant to test one part of the AI infrastructure chain. If the chain keeps converting demand into cash flow and better returns on capital, I want to stay patient.

I would rather own fewer things that I understand than hold many names just to look diversified.

#My Portfolio Health Care