SIDIKE Surges to 20‑Day Record on Heavy Foreign‑Capital Buying

On 27 January 2026, Jiangsu Sidike New Material Science & Technology Co Ltd (ticker 300806) achieved a 20‑day trading record, climbing 20 % to a 49.08 CNY close—its highest level since the beginning of the year. The rally was propelled by an unprecedented inflow of foreign capital, with the Shenzhen‑stock‑exchange‑linked Shenzhen‑Foreign‑Share Trading (Shenzhen‑GS) dedicated desks collectively net‑buying 17.56 million CNY (≈1.76 billion USD). Two institutional “special‑seat” desks added a further net inflow of 1.06 million CNY, while another desk net‑sold only 321.88 thousand CNY.

The trading volume reached 21.50 billion CNY, a turnover that dwarfed the 14.47 % share turnover recorded the previous day. The surge coincided with a broader market lift— the CSI 300 and CSI 500 indices edged up, and the Shanghai Composite closed 0.18 % higher—yet SIDIKE’s performance was driven by a concentrated, aggressive buying pattern rather than general market momentum.

Foreign‑Capital Appetite and Institutional Confidence

The 20‑day “龙虎榜” (bid‑ask leaderboard) revealed that SIDIKE was the top beneficiary of Shenzhen‑GS activity, outperforming peers such as XIAOCHENG Technology and XieXin Integrated. The 1.76 billion CNY net purchase is the largest single‑day inflow recorded for SIDIKE since the start of the year, underscoring a shift in investor sentiment that has long been hampered by the company’s astronomical price‑to‑earnings ratio of 249.38.

Notably, SIDIKE’s price moved from a 52‑week low of 12.98 CNY (April 2025) to 49.08 CNY within a single trading day, a swing that suggests the market has re‑evaluated the company’s intrinsic value. The 52‑week high of 55.8 CNY is now within reach, indicating a steep upward trajectory if foreign‑capital pressure continues.

Market Context and Risks

Despite the bullish sentiment, SIDIKE’s market cap—approximately 24 billion CNY—remains modest relative to its revenue streams. The company’s exposure to commodity‑price volatility and regulatory scrutiny in the new‑material sector presents potential headwinds. Moreover, the 2026‑01‑27 market snapshot also highlighted the risk of delisting for several other A‑share stocks, reminding investors that sudden regulatory crackdowns can abruptly alter valuations.

Bottom‑Line Takeaway

SIDIKE’s 20‑percent jump, powered by massive foreign‑capital inflows and institutional buying, demonstrates a renewed confidence in the company’s strategic positioning within China’s burgeoning new‑material industry. The substantial net purchases from Shenzhen‑GS desks and institutional special seats signal that market participants are willing to pay a premium for a company whose fundamentals remain fragile yet promising. For investors, the critical question is whether this surge represents a sustainable turnaround or a speculative bubble poised to burst amid tightening regulatory oversight.