$MONTAGE TECH(06809.HK) closed at 321.6 on 5/5 and 514 on 5/12, a 60% gain over five trading days. Specifically, it rose 18% on 5/11 and 25% on 5/12 (intraday high of 524.5) – a cumulative 50% gain over two days. This morning on 5/13, it's still hovering around 516.

What's the logic behind the push? A combination of three factors:

First, Goldman Sachs raised its target price; the news came out during the morning session on 5/13, pushing the stock to a new intraday high of +17.4%.

Second, Morgan Stanley followed suit with an upgrade, a rare instance of unanimous institutional sentiment.

Third, news of Samsung's CXL 3.1 memory module mass production in 2026 – CXL 3.1 is a new protocol for memory pooling, requiring Retimer + Buffer chip support. Montage is a core beneficiary in this chain, being a global top-three DDR5 interface chip supplier and a leader in PCIe Retimer.

The story makes sense, but the two-day +50% surge has already priced in most of the good news expected over the next 6-12 months.

Don't chase after a sharp rally; wait for a pullback. The reasons are: CXL 3.1 mass production is an event for the second half of 2026; earnings realization will at least wait for Q3/Q4 financial reports, and there may be no new catalysts before the end of June. Institutional target price upgrades often lag behind stock price movements; the upgrade itself is a recognition after the price has already risen, not a leading signal. With a combined H-shares and A-shares market cap in the hundreds of billions, retail momentum players have already entered. Further gains would require new incremental funds, which is not easy.