Screening Cap
≤ $22B
User request "market cap less than KRW 30 trillion" is conservatively assumed as the upper limit based on the dollar.
The purpose of this request is to discover sectors where AI infrastructure bottlenecks and price transfer power are confirmed, rather than recommending individual short-term stocks. Therefore, the report enforces the Industry Request Flow, first confirming the macro/news system and then locking only stocks that satisfy the market capitalization limit in the bottleneck value chain.
[FACT] The interest rate level is in a "maintenance at a high level" section, not a rapid easing. As of the Fed's H.15, the effective federal funds rate is 2026-02-25, 3.64%, and the US 10-year Treasury bond on the same date is confirmed at 4.31%. This combination leaves a long-term discount rate burden, but at the same time creates an environment where funds are compressed into bottleneck sections with high earnings visibility.
[INFERENCE] From the demand side, AI infrastructure investment is at a stage where branches are lacking before stems. Rather than just one item, the GPU, peripherals such as packaging, high-speed interconnects, thermal management, and memory interfaces determine the actual installation speed, and the lower the supply elasticity in this section, the higher the price and margin defense power. This screening targeted this "installation bottleneck" section.
[FACT] The final locked stocks are AMKR (advanced packaging/OSAT), MTSI (high-speed optical communication·RF/analog), MOD (data center thermal management), and RMBS (memory interface IP/chip). All four stocks have a latest locked market cap of less than $22 billion, and traces of AI-related demand being linked to sales growth or product mix improvement have been confirmed in recent performance.
[FACT] The macro environment is in an intermediate zone of "recession fear easing + interest rate fixation". The Fed's policy interest rate continues to be frozen, and long-term interest rates remain in the mid-4% range. In this environment, story stocks with low sales visibility are vulnerable to discount rates, but parts and process companies that are essential for resolving bottlenecks are likely to be allocated priority budgets from customers.
[NARRATIVE] Recent AI infrastructure news flows have quickly shifted from single-chip performance competition to "system integration bottlenecks". Server rack power density increases, optical module conversion speeds, advanced packaging capacity, memory bandwidth, and interface optimization are being mentioned simultaneously, and in these sections, delivery date, yield, and supply acquisition are the key variables of negotiation power rather than price reduction competition.
[INFERENCE] In other words, excess returns in this cycle are more likely to occur in intermediate suppliers that create "stop-cost" than in final demand companies. Areas where customers have to pay a premium to keep their installation schedules on track have plenty of room to absorb multiple deratings with performance, even if valuations are somewhat high.
[FACT] In advanced packaging/OSAT, AMKR recently recorded quarterly sales of $1.89B(+16% YoY) and gross profit margin of 16.7%. It is important that the customer mix has also been upgraded, not just the volume. In a bottleneck situation, customers tend to pay a premium for delivery date stability in the testing and packaging sections.
[FACT] In high-speed interconnects, MTSI recorded quarterly sales of $271.6M(+24.5% YoY) and gross margin of 55.9%. If the interconnect is slow, the GPU cluster utilization rate will drop, so the 1.6T conversion and optical connection component groups are strengthening their "must-have" character.
[FACT] In thermal management, MOD presented quarterly sales of $805.3M(+30.5% YoY) and data center sales of +78%. The increase in AI server power density is pushing up cooling equipment CAPEX, and this market is characterized by faster expansion after securing references.
[FACT] In memory interfaces, RMBS's product sales were confirmed at $347.8M(+41% YoY). In the advancement of HBM/DDR, interface IP/controllers are key to alleviating bandwidth bottlenecks, and sections where royalties and product sales expand together may appear in the standard transition cycle.
[INFERENCE] The commonality of the four sectors is that they are "installation bottlenecks with low substitutability" rather than the "surge in demand" itself. In this structure, securing supply takes precedence over price cuts, and as a result, even mid-cap stocks can secure both fixed cost leverage and margin defense.
| Desk | Signal | Confidence | Key Finding | Invalidation Trigger |
|---|---|---|---|---|
| Macroeconomics | neutral | medium | Multiple burden exists due to high interest rate maintenance, but investment priorities are focused on bottleneck resolution | US 10-year Treasury bond fixed upward at 4.8% |
| Industry | bullish | high | Intensifying bottlenecks in packaging, interconnects, thermal management, and memory interfaces | Simultaneous downward revision of AI infrastructure CAPEX guidance |
| Indicator | bullish | medium | Confirmed high YoY growth and product mix improvement across selected stocks | Revenue/margin contraction for two consecutive quarters |
| Technical/Flow | neutral | medium | Short-term overheating section exists, phased entry is valid | Turnaround with a decline in trading volume |
| Business/Product | bullish | high | Installation bottleneck-type supplier status, high customer switching costs | Early securing of alternative supply lines |
| News/Catalyst | bullish | medium | Reconfirmation of AI infrastructure demand intensity in the February earnings season | Slowdown in orders in the next earnings season |
| Ticker | Bottleneck Sector | Locked Mkt Cap ($B) | Key Quantitative Basis | Desk Signal | Conviction |
|---|---|---|---|---|---|
| AMKR | Advanced Packaging / OSAT | 11.96 | Q4 Sales 1.89B(+16%), GM 16.7% | bullish | High |
| MTSI | Optical / RF Connectivity | 17.53 | Q1 Sales 271.6M(+24.5%), GM 55.9% | bullish | High |
| MOD | Thermal Management | 11.58 | Q3 Sales 805.3M(+30.5%), DC Sales +78% | bullish | Medium-High |
| RMBS | Memory Interface IP/Chip | 11.95 | Q4 Product Sales 347.8M(+41%) | bullish | Medium-High |
| Date (ET) | Event | Type | Impact | Risk Map |
|---|---|---|---|---|
| 2026-02-02 | Rambus Q4/FY2025 Earnings Announcement | [FACT] | Reconfirmation of Memory Interface Demand Intensity | Risk of a sharp decline in growth rate when demand normalizes |
| 2026-02-04 | Modine FY2026 Q3 Earnings Announcement | [FACT] | Confirmation of high growth in data center cooling demand | Changes in project delivery when CAPEX is delayed |
| 2026-02-05 | MACOM FY2026 Q1 Earnings Announcement | [FACT] | High-speed interconnect demand and margin improvement | Price pressure when optical component supply expands |
| 2026-02-09 | Amkor Q4 Earnings Announcement | [FACT] | Realization of packaging/testing bottleneck benefits | Decline in utilization rate when customers adjust inventory |
| Scenario | Probability | Entry Rule | Target | Stop | Sizing | Execution Note |
|---|---|---|---|---|---|---|
| Base | 55% | 3-time split based on current price (AMKR 48.6 / MTSI 241.7 / MOD 218.3 / RMBS 114.5) | 6~12 months +18% basket | -11% hard stop by stock | 70% of total 100% executed | AMKR 22%, MTSI 20%, MOD 16%, RMBS 12% |
| Bull | 30% | 1 chase when guidance is raised after earnings announcement | +30% basket, MTSI/MOD excess | Trailing -9% | Additional 20% executed | Reallocate weight if high growth is maintained: MTSI +5%, MOD +3% |
| Bear | 15% | US 10-year Treasury bond fixed upward at 4.8% or AI CAPEX simultaneously downward | Expand cash holdings, defensive transition | Immediate -8% risk cut | Total exposure reduced to 40% | Maintain RMBS-centered, MOD/AMKR prioritized reduction |
If the 10-year Treasury bond is fixed above 4.8%, growth stock multiple compression may resume. In this case, stop new entries and reduce existing positions by 30%.
If hyperscalers delay AI infrastructure CAPEX execution, bottleneck stocks may have a larger retracement than expected.
If supply chain expansion is faster than expected, price transfer power and margin advantage will weaken. A decline in gross margin for two consecutive quarters is seen as a sign of structural damage.
Mid-cap stocks have high event risk. The weight of a single stock should not exceed 25%, and rebalancing is forced at a maximum portfolio loss of -12%.
Lock Time: 2026-02-27 03:15 ET. Downstream analysis references only these adopted values.
| metric | value | unit | timestamp | source_a | source_b | status |
|---|---|---|---|---|---|---|
| US Effective Fed Funds Rate | 3.64 | % | 2026-02-25 | S1 | S2 | confirmed |
| US 10Y Treasury Yield | 4.31 | % | 2026-02-25 | S1 | S3 | confirmed |
| AMKR market cap | 11.96 | $B | 2026-02-26 | S4 | S5 | conflict-resolved |
| MTSI market cap | 17.53 | $B | 2026-02-26 | S6 | S7 | conflict-resolved |
| MOD market cap | 11.58 | $B | 2026-02-26 | S8 | S9 | conflict-resolved |
| RMBS market cap | 11.95 | $B | 2026-02-26 | S10 | S11 | conflict-resolved |
| AMKR Q4 FY2025 net sales | 1.89 | $B | 2025-12-31 quarter / 2026-02-09 release | S12 | S13 | confirmed |
| AMKR Q4 gross margin | 16.7 | % | 2025-12-31 quarter / 2026-02-09 release | S12 | S13 | confirmed |
| MTSI FY2026 Q1 revenue | 271.6 | $M | 2026-01-02 quarter / 2026-02-05 release | S14 | S15 | confirmed |
| MTSI FY2026 Q1 gross margin | 55.9 | % |