I. Core Drivers of the Stock’s Popularity
1.1 Outperforming Earnings Growth
Tongfu Microelectronics released its earnings forecast on January 20, 2026, expecting its 2025 net profit attributable to parent company shareholders to reach
RMB 1.1 billion to RMB 1.35 billion
, representing a year-on-year surge of
62.34% to 99.24%
[1][2][3]. This outstanding performance mainly benefits from the structural growth of the global semiconductor industry, with the company’s capacity utilization rate significantly improved, especially the strong performance of chip packaging and testing businesses related to artificial intelligence and high-performance computing. The company achieved revenue of RMB 20.116 billion and net profit attributable to parent company shareholders of RMB 0.86 billion in the first three quarters of 2025 [1], and the full-year forecast shows that the fourth quarter continued to maintain strong growth momentum.
1.2 Abnormal Stock Trading Volatility
The company’s stock
saw a cumulative deviation of closing price gains exceeding 20% over 3 consecutive trading days
on January 16, 19, and 20, 2026, constituting abnormal stock trading volatility [1][4]. This anomaly directly triggered exchange attention and widespread investor discussion: on January 20, the stock rose 5.85% in a single day, with a turnover of RMB 10.1 billion and a turnover rate of 13.22% [4]; on January 22, the turnover rate further climbed to 19.01%, with a turnover of RMB 16.247 billion [5]. The stock price surged from approximately RMB 40 on January 16 to near RMB 60.
1.3 Deeply Tied to AMD Theme
One of the key logics for market speculation on Tongfu Microelectronics is its
deep cooperative relationship with AMD
[6][7]. Tongfu Microelectronics is AMD’s largest packaging and testing service provider, undertaking the majority of its high-end CPU and GPU packaging and testing tasks. The global CPU supply is entering a tight phase in 2026, with news of a 10-15% price hike in AMD’s supply chain; the shortage and price increase of upstream CPUs mean that downstream packaging and testing capacity utilization will be fully utilized. In addition, the company’s memory chip production lines have steadily entered mass production, and large-size FCBGA has been mass-produced, further strengthening market expectations.
1.4 Intensive Institutional Research
On January 21, 2026,
17 institutions
(including Ping An Securities, Great Wall Fund, Yangtze Asset Management, Zhonggeng Fund, CITIC Securities, Fullgoal Fund, etc.) conducted a collective research on Tongfu Microelectronics [8][9]. The research focuses on the company’s layout of cutting-edge packaging technologies such as Chiplet and 2D+, the strategic positioning of fund-raising projects around key field chip products and domestic substitution, and the capacity expansion plan for packaging technologies such as fan-out, wafer-level, and flip-chip bonding.
1.5 Capital Support
The company recently received the “Acceptance of Registration Notice” from the National Association of Financial Market Institutional Investors, and was approved to register a total of
RMB 3 billion debt financing instruments
, including RMB 1 billion ultra-short-term financing bonds and RMB 2 billion medium-term notes [5]. This provides sufficient capital guarantee for the company’s future expansion.
II. Price Performance and Capital Flow
2.1 Price Trend Analysis
| Time Period |
Price Change |
Comment |
| 1-Day |
+0.61% |
Sustained upward momentum |
| 5-Day |
+29.67% |
Strong short-squeeze rally |
| 1-Month |
+50.36% |
Notable monthly gain |
| 6-Month |
+117.70% |
Price doubled in half a year |
| 1-Year |
+99.86% |
Yearly gain nearly doubling the price |
The company’s current share price is RMB 56.34, approaching the 52-week high of RMB 59.20, with a market capitalization of RMB 85.5 billion [0].
2.2 Trading Volume Anomaly
Today’s trading volume is 2.3712 million hands
(1 hand = 100 shares), which is
3.29 times
the average daily trading volume of
720,500 shares
[0], indicating extremely high enthusiasm for capital participation. On January 22, the trading volume reached 2.8849 million hands, with a turnover of RMB 16.247 billion. The continuous volume expansion and price increase show that off-exchange funds are rushing into the market.
2.3 Capital Flow Warning
According to public data [5], as of the close on January 22:
This capital structure of “main funds out, retail funds in” often appears at the stage high of stock prices, which is an early warning signal of a short-term top.
III. Technical Indicator Assessment
| Indicator |
Value |
Signal Interpretation |
20-day Moving Average |
¥43.53 |
Short-term moving average provides support |
50-day Moving Average |
¥39.51 |
Medium-term trend is upward |
200-day Moving Average |
¥32.22 |
Long-term moving averages are in a bullish formation |
KDJ |
K:87.1, D:86.0, J:89.2 |
Severely overbought zone [0] |
RSI (14) |
Overbought risk zone |
Correction risk warning [0] |
MACD |
No death cross signal |
Short-term sentiment remains bullish |
Beta |
0.42 |
Low correlation with the broader market |
Technical indicators show that
both KDJ and RSI are in the overbought zone
, with significant short-term correction pressure [0]. However, the MACD shows no death cross signal, indicating that the medium-term trend has not fully reversed.
IV. Risk and Opportunity Assessment
4.1 Main Risk Factors
Valuation Risk
: The current P/E ratio reaches 86.75x, a historical high, and valuation has fully priced in optimistic expectations [0]. Once earnings fall short of expectations or market sentiment shifts, there is significant risk of valuation compression.
Technical Overbought Risk
: KDJ, RSI and other technical indicators all show severe overbought conditions, increasing the probability of a short-term correction. Historically, similar situations are often accompanied by a 10%-15% pullback.
Main Fund Exit Risk
: Main funds have a net outflow of RMB 1.728 billion, which may indicate high-level distribution. The large-scale entry of retail investors often coincides with a stage high.
Liquidity Risk
: The current ratio is 0.91 and the quick ratio is 0.66, requiring attention to short-term solvency [0].
4.2 Opportunity Factors
Solid Fundamentals
: The 2025 net profit forecast growth of 62%-99% verifies that the company benefits from the semiconductor industry recovery and domestic substitution trend.
High Industry Prosperity
: The semiconductor packaging and testing industry as a whole benefits from strong demand in emerging fields such as AI, high-performance computing, and 5G, as well as the industry prosperity driven by rising memory chip prices.
Institutional Recognition
: The intensive research by 17 institutions shows that professional investors are highly concerned, and the company has a leading layout in cutting-edge packaging technologies such as Chiplet and 2D+.
V. Key Price Levels and Subsequent Focus
| Price Level |
Nature |
Significance |
¥59.20 |
52-Week High |
If effectively broken, it may open up upward space |
¥57.61 |
Short-term Resistance |
Close to the previous high, may encounter profit-taking |
¥43.53 |
20-Day Moving Average |
Key short-term support level |
¥40.00 |
Important Support |
If broken, it may trigger a larger correction |
Subsequent Focus Events
: Whether the stock price can break through ¥59.20 to hit a new all-time high, whether trading volume can remain at a high level, the release of the 2024 annual report to verify the sustainability of fundamentals, and the impact of AMD’s new product launch on the company’s order volume.
VI. Conclusion
The driving factors for Tongfu Microelectronics to become a hot stock are clear:
outperforming fundamentals
(net profit forecast growth of 62%-99%),
superimposed thematic effects
(tied to AMD + Chiplet advanced packaging + rising memory chip prices),
capital-driven momentum
(trading volume expanded by more than 3 times), and
institutional attention
(research by 17 institutions). These factors together pushed the stock price up nearly 30% in 5 days, approaching the 52-week high.
However, the analysis reveals several notable risk factors. The current valuation level is significantly high (P/E 86.75x), technical indicators show overbought status, and main funds have begun to net out. Overheated market sentiment may signal short-term adjustment risk. Based on a comprehensive assessment,
the risk of participating at the current level outweighs the opportunity
. It is recommended that existing holders set a stop-loss at ¥43.50 (20-day moving average), and potential holders wait for a correction to below ¥40.00 before considering phased position building. The company has excellent fundamentals and is in a high-prosperity track, but it is more prudent to wait for market sentiment to return to rationality before paying attention.