Woofun AI reports that JPMorgan's electronic components industry Asian roadshow feedback, released on June 30, indicates a sharp divergence among institutional investors regarding the valuation of Japanese MLCC and passive component stocks following a significant price surge driven by AI server demand. The bank conducted investor visits in Hong Kong and Singapore from June 22 to 26, where the primary focus centered on passive component manufacturers, specifically Murata Manufacturing, TDK, Taiyo Yuden, Nichicon, and Nippon Chemi-Con. Meetings also highlighted targets along the broader AI server supply chain, including Ibiden, Rohm, MinebeaMitsumi, Alps Alpine, and Hirose Electric. A notable shift in sentiment emerged as hedge fund investors significantly increased inquiries regarding potential short-selling targets, signaling growing caution despite the sector's recent rally.

The most profound change in market sentiment is the transition from debating the volume of AI server demand to questioning whether this demand can sustain already elevated stock prices. Since April, the valuations of several Japanese electronic component stocks have detached from historical ranges, creating a split in investor logic. One camp argues that AI server demand has established a new growth norm, while the opposing view contends that current share prices reflect overpricing rather than fundamental value. This divergence marks a critical inflection point where the narrative has shifted from pure demand discovery to rigorous profit validation.

Passive component sectors, including MLCCs, electrolytic capacitors, and crystal devices, remain the focal point of this trading cycle. As AI server power consumption rises and board design complexity increases, the requirement for high-capacity and high-reliability MLCCs has intensified, rapidly warming market growth expectations for related manufacturers.

However, the velocity of the stock price appreciation has obscured market consensus. Investors now find it difficult to pinpoint true expectations following the short-term surge; while strong demand is accepted as fact, the extent to which stock prices accurately reflect future growth has become a primary point of contention.

Performance data underscores the magnitude of this rally. From the end of March to mid-June, Murata Manufacturing shares rose by approximately 35%, while Taiyo Yuden climbed by about 50%. In contrast, the broader TOPIX index gained only about 17% during the same period. This significant outperformance has transformed passive component stocks into a crowded asset group within Japan's AI trading landscape. The disparity between sector gains and broader market returns highlights the concentrated nature of capital flowing into these specific names.

Specific concerns have arisen regarding companies like Taiyo Yuden, Nichicon, and Nippon Chemi-Con, where stock prices have surged despite relatively low profit levels in the current quarter. Investors are increasingly worried that if financial results from April to June fail to demonstrate simultaneous improvements in orders, pricing power, and profit margins, downward pressure will follow the release of earnings reports. The disconnect between market capitalization growth and actual earnings realization creates a fragile foundation for further upside.

In terms of positioning, Murata remains the most attractive target for long positions due to its stable high-end MLCC market share. Its customer structure and product specifications align more closely with the upgrade logic of AI server demand, making it a core beneficiary in the eyes of long-term funds. Conversely, as valuations reach high levels, investors are employing relative trading strategies to manage risk. Some early investors have begun taking profits in Taiyo Yuden, shifting to paired trades involving long positions in Murata and short positions in Taiyo Yuden. Others continue to hold Murata while waiting for a pullback in Taiyo Yuden before re-entering the position.

This behavior indicates that funds have not exited the MLCC sector entirely but are pivoting from a 'buy the entire sector' approach to a 'buy the leader, sell the laggard' strategy. Taiyo Yuden is viewed as a direct beneficiary of AI server MLCC demand with high price elasticity in the early stages; however, this elasticity increases the pressure to deliver on financial reports. If order growth, price increases, or improved capacity utilization rates do not quickly materialize in the income statement, short-term funds are likely to realize gains. The market is effectively testing the durability of the rally through these relative value trades.

TDK occupies a more nuanced position within this dynamic. While some investors consider TDK a latecomer to the AI server MLCC market, the company benefits from a tight supply and demand situation in power inductors, particularly thin-film metal inductors, which are expected to drive price increases.

Additionally, TDK possesses significant potential for market share expansion in lithium iron phosphate backup battery units (LFP BBU) and HDD magnetic heads. Consequently, TDK is viewed both as a beneficiary of AI server chain overflow and as a hedging tool in paired trades following valuation surges. Many investors are currently taking long positions in Murata while shorting TDK, reflecting a market repricing among different AI component targets.

Similar differentiation is evident across other electronic component stocks. Ibiden remains a beneficiary of AI server motherboard demand, yet its stock price has already partially reflected earnings expectations extending to fiscal year 2030 or beyond. Rohm has seen increased visibility driven by the rise in Kioxia's share value and a shortage of 80-100V Si-MOSFETs. MinebeaMitsumi benefits from demand for server fan bearings and BBU protection modules, though its valuation is no longer considered cheap.

Meanwhile, Alps Alpine has emerged as a target for hedge funds seeking short-selling clues, indicating a broader search for overvalued assets within the sector.

JPMorgan maintains a restrained outlook on short-term stock price performance. The report notes that while MLCC-related stocks have risen significantly since April, analysts have made limited adjustments to earnings forecasts over the past three months. Consequently, the probability of a significant further uptrend in the July-September period based solely on AI server MLCC expectations is low, with related stocks more likely to enter a range-bound phase. The immediate catalyst for the next leg of growth may not arrive until October-December.

The report suggests that demand for high-end MLCCs for AI servers may become clearer in the October-December window. As 2027 price negotiations progress, if the tight MLCC situation in the supply chain becomes further exposed, price hike expectations will be easier to materialize, potentially driving stock prices to regain momentum. This timeline aligns with the typical cycle of supply chain constraints translating into pricing power for manufacturers.

Beyond MLCCs, Nichicon and Nippon Chemi-Con are undergoing reevaluation within the AI server power supply chain. The market is scrutinizing whether price increases at these companies are merely passing on rising aluminum costs or if they can achieve greater price hikes for higher-specification products. With server power architectures evolving toward 400V and 800V HV-DC, demand for long-life, high-reliability aluminum electrolytic capacitors and high-voltage related components is expected to increase. This technological shift presents a new variable for profit margin expansion.

The most critical area for market validation remains the implementation of price increases. While AI server demand has been extensively discussed, the extent and duration of price hikes will determine whether this trend continues or enters a valuation digestion phase. Hedge funds searching for short-selling clues do not necessarily signal an immediate peak for Japanese passive component stocks. Rather, the market has transitioned from unidirectional trading on AI demand to a more detailed phase of valuation and profit validation.

Investors will continue to accumulate positions in more certain leaders while seeking hedging targets with overstretched valuations, insufficient profit realization, or overly strong theme-driven momentum. For Murata, the key variable is whether high-end MLCC demand can sustain its premium valuation. For Taiyo Yuden, the critical test is whether profit statements can keep pace with stock price elasticity. For TDK, the focus is on whether power inductors, LFP BBU, and HDD magnetic heads can provide new growth support.