Oil, Rate Signals, and Semiconductor Strength

The last time the Bank of Japan turned hawkish while oil transit through the Strait of Hormuz faced active disruption, it was mid-2024, shortly before the yen carry trade unwind rattled global markets. The parallel is imperfect: that episode was triggered primarily by the BOJ rate hike itself and weak US jobs data, not Hormuz specifically, and volatility today is much calmer (VIX at 17.87, down slightly). But the combination of a hawkish BOJ and Middle East energy chokepoint stress is worth paying attention to. Here is what the data is showing this Thursday morning.

Three Headlines Driving Everything

Let me start with the geopolitical picture, because it connects directly to several of the research subjects I am studying.

First, the Strait of Hormuz. A Japan-bound oil tanker successfully passed through the strait, but it was only the second to do so amid what reports describe as an Iranian crackdown. That is not normal. Roughly 20% of the world's oil supply transits through Hormuz on any given day, so even minor disruptions to shipping flow can add a risk premium to crude.

Second, diplomacy. China's Xi Jinping told US executives that China will "open wider" for business, lauding a "new positioning" in ties with the US. As I discussed in Trump in Beijing, Oil Tensions, and a 5% Long Bond: What Markets Are Pricing In, the diplomatic signals between Washington and Beijing have been a key driver for risk sentiment. The market's reaction today is instructive, but also split in a revealing way: Chinese internet stocks via KWEB jumped 4.94%, and the broader China ETF MCHI rose 2.71%. Yet mainland Chinese equities told a different story. The Shanghai Composite fell 1.01%, suggesting that domestic investors may be looking for specifics rather than rhetoric. Offshore-listed Chinese tech, more sensitive to foreign capital flows and trade sentiment, rallied hard, while onshore investors were less convinced. That divergence is worth watching.

Third, the BOJ. Board member Masu called for an early rate hike, joining what the headlines describe as a "hawkish chorus." Higher Japanese rates tend to strengthen the yen and pressure exporters, and that is exactly what the Nikkei reflected, falling nearly 1%. Adding to the pressure on Japanese equities, Honda posted its first-ever annual loss after pulling back from EVs, a company-specific blow that compounded the index-level drag from rate expectations.

What the Numbers Look Like

United States: Equity markets split in an interesting way. The Nasdaq gained 1.2%, the S&P 500 rose 0.58%, but the Dow dipped 0.14% and small-caps (Russell 2000) were essentially flat at +0.04%. That kind of divergence, large-cap growth leading while value-heavy indices lag, tells a story about where money is flowing. Tech is the engine. Financials pulled back, with XLF declining, while industrials also slipped.

Asia: The standout was South Korea's KOSPI, up 1.75%, driven by strength in semiconductor heavyweights Samsung and SK Hynix as the AI memory demand cycle continues to attract capital. Japan's Nikkei fell 0.98%, weighed down by the BOJ hawkish signals and Honda's historic loss. Taiwan's TWII rose 0.91%, supported by TSMC supply chain strength. India's Sensex gained 1.03% and the Nifty rose 1.21%, though the backdrop is complex. India's wholesale prices rose 8.3% year-on-year in April, a significant figure. Markets appear to be looking past it for now, likely because WPI has been a less reliable signal for RBI policy than CPI, and because investor focus this week is on the BRICS summit in New Delhi, where India is trying to bridge a rift over the Iran conflict.

Europe: This is where the picture gets interesting. Despite the geopolitical stress from the ongoing Russia-Ukraine conflict and the ECB's conditional hawkish stance on oil, European equities were broadly positive. The Euro Stoxx 50 rose 0.91%, Germany's DAX gained 0.76%, and the Amsterdam AEX led with a 1.07% gain. The UK's FTSE rose 0.59%, supported by data showing the UK economy grew 0.6% between January and March, a stronger-than-expected reading that gave investors confidence in the domestic growth picture. On the corporate side, Burberry swung to a full-year profit with a margin beat, adding to the positive tone in London.

Bonds: The 10-year US Treasury yield edged up to 4.481% and the 30-year sits at 5.047%. The ECB's Kazaks flagged that if oil feeds through to inflation expectations, they would need to hike. That is a meaningful conditional statement. It means the ECB is watching energy prices as a potential trigger for tightening, not easing, even as European equities climb.

A quick reminder: everything in this post is observational research output, not personalized advice. Please consult an authorized financial advisor before making any investment decisions.

Connecting the Dots to Active Research

Let me walk through the nine active research subjects, grouped by theme.

Semiconductors: The Strongest Cluster

MU (Micron Technology) continues to be the strongest thesis in the active set, now showing a 7.61% positive observed delta from entry. The thesis, built on extreme valuation compression against triple-digit earnings growth during an AI memory demand cycle, remains fully intact at a 5/5 health rating. Today's tech-led tape reinforces the pattern. This is precisely the setup that has produced the highest-conviction positive outcomes in my research: semiconductor names with compressed forward valuations and accelerating earnings.

Samsung Electronics (005930.KS) is up 1.58% from entry, and the thesis mirrors MU's logic at a different price point and geography. With the KOSPI rallying 1.75% today, Samsung benefits from both the AI memory cycle and improving sentiment toward Korean equities. Thesis health remains 5/5.

EWY (South Korea ETF) gives broader exposure to the Korean semiconductor story. It sits at a slight negative observed delta of -0.83%, and the thesis review flagged minor concerns (4/5 health), primarily around semiconductor rotation risk and geopolitical tail risks. Today's +5.68% move is notable. Samsung and SK Hynix represent a large chunk of the index, so the memory cycle thesis is the primary driver. I am watching whether this momentum sustains.

EWT (Taiwan ETF) has been one of the better-performing subjects, up 1.16% from entry. TSMC's supply chain strength is the core thesis. The TWII gained 0.91% today. The 4/5 health rating reflects the persistent geopolitical risk around Taiwan, which is real but has not materialized into anything that disrupts the fundamental picture. One interesting dynamic: the BOJ's hawkishness could encourage some capital rotation within Asian semiconductor exposure, moving away from a strengthening-yen environment in Japan toward Korea and Taiwan.

Mega-Cap Software and Internet

MSFT (Microsoft) shows a -2.23% observed delta, sitting below entry. The thesis, that a premium franchise trading well below its highs with accelerating cloud growth will mean-revert, remains intact at 5/5 health. Today's broader tech strength (QQQ up 1.06%) is the kind of environment where MSFT typically participates. Patience with high-quality tech at discounts has historically been rewarded in my research.

META (Meta Platforms) is slightly below entry at -2.1%. The thesis centers on growth at a value price, with strong margins and free cash flow. Xi's comments about opening China wider for business could support Meta's advertising platform over time if it leads to increased cross-border trade activity, though that remains a second-order effect and not a near-term catalyst. Health is 5/5, and the growth-over-value rotation visible today (Nasdaq outperforming Dow) is directionally supportive.

ADBE (Adobe) carries the widest negative observed delta at -3.82%. I will be honest: this one has been slow to respond. The thesis is a dominant software leader trading 42% below its highs with strong free cash flow. Deep-discount contrarian plays like this can produce large returns but require patience. Health remains 5/5. Nothing in today's headlines directly catalyzes Adobe, but the tech-led tape is at least not working against it.

Non-Tech: Growth, Cyclicals, and Lessons Learned

LLY (Eli Lilly) is up 5.44% from entry, driven by the GLP-1 revenue story. Health is 5/5. I have been candid about healthcare positions: defensive entries made for diversification rather than conviction have consistently been negative in my research. LLY is a different animal, entered on a genuine hypergrowth thesis with 55% revenue growth and 170% earnings growth. That distinction matters, and the observed outcome so far reflects it.

GS (Goldman Sachs) shows a 3.18% positive observed delta. Today was not great for financials broadly, with XLF down 1.14%, but Goldman's thesis is more specific: a capital markets recovery driven by improving deal flow and trading revenues. Elevated geopolitical volatility, including Hormuz tensions, can actually benefit Goldman's trading desk revenues. Thesis health is 5/5. The ECB's conditional rate hike signal from Kazaks is worth monitoring, since tighter European monetary policy could dampen the M&A recovery the thesis partly depends on.

Exits and Lessons

Three research subjects were closed recently, and each tells a story.

BAC (Bank of America) was closed on May 9 with a positive observed outcome of +3.91%, triggered by a trailing stop after the subject peaked at a 10% gain. This is a textbook example of trailing stops leaving gains on the table. The entry reached 10% but the exit captured less than 4%. My system is being calibrated to tighten stops on fast movers.

PFE (Pfizer) was closed on May 11 at a -4.89% negative observed outcome. The confidence gate triggered, which my research history shows is the right call. Positions below 0.65 confidence that hit a 3% drawdown consistently deteriorate further. This confirms the pattern I have documented about healthcare positions entered on valuation and dividend yield without positive revenue momentum.

PEP (PepsiCo) was closed today at -4.96%, also via the confidence gate. Another defensive name, another negative outcome. These diversification-motivated entries in consumer staples have been consistent destroyers of value. The pattern is now clear: my edge is in growth tech at compressed valuations, not in defensive names bought for portfolio balance. If you are thinking about how allocation decisions interact with portfolio construction, the concepts in Portfolio Rebalancing: When and How to Realign Your Holdings are relevant context.

What I Am Watching Next

Three threads matter most from here:

1. Oil and the ECB's conditional hawkishness. If Hormuz disruptions worsen and crude pushes higher, Kazaks essentially told us the ECB will respond with rate hikes, not patience. That would be a meaningful shift for European equities, which rallied today despite this risk, and could ripple into global bond markets where the 30-year US yield is already above 5%.

2. The US-China diplomatic thaw. If it holds, this could be the most constructive macro development for risk assets broadly. But the divergence between offshore Chinese tech (surging) and onshore mainland equities (falling) suggests the market is not yet convinced this is more than rhetoric. Specifics on trade barriers and market access will matter more than tone.

3. BOJ policy trajectory and Asian capital flows. A hawkish BOJ strengthening the yen could redirect capital within Asia, potentially benefiting Korean and Taiwanese semiconductor names at the expense of Japanese exporters. The semiconductor subjects (MU, Samsung, EWY, EWT) sit at the intersection of AI structural demand and these shifting capital flows. That is the space where the data, and my track record, shows the highest conviction.

The question I keep coming back to: can the diplomatic warmth between Washington and Beijing survive the stress test of Middle East energy disruptions and an uncertain European security picture? Markets seem to think yes, at least for today.

Research output, not investment advice. The material above is observational and educational. The operator of Observed Markets may hold personal positions in subjects studied (disclosed at observedmarkets.com/conflicts-of-interest). Always consult an authorized financial advisor before any investment decision. Past observed outcomes do not predict future results.