Recently, OCS (Optical Circuit Switch) concept stocks have experienced collective gains, while shareholder reductions are occurring simultaneously. How are the layout results for the explosive OCS concept stocks? The AI industrial chain boom is spreading to multiple branching directions.

On September 18, OCS concept stocks collectively exploded, with Dekete (688205.SH) hitting a "20CM" daily limit up, Guangku Technology (300620.SZ) rising 15%, Lingyun Optics (688400.SH) gaining over 12%, and Techjing Technology (688195.SH), SMEE Electronics (300456.SZ), and Focuslight Technologies (688167.SH) all posting increases.

On September 19, OCS concept stocks continued their upward trajectory. Dekete, Guangku Technology, Lingyun Optics, and Techjing Technology all reached new periodic highs, closing at 154 yuan/share, 125.34 yuan/share, 50.73 yuan/share, and 132.14 yuan/share, respectively.

OCS refers to Optical Circuit Switch, which is switching equipment based on all-optical signals. Research reports indicate that compared to electrical switches, OCS advantages include eliminating the need for optical-electrical signal conversion and corresponding data packet processing, significantly reducing latency and power consumption while lowering system failure probability. Additionally, OCS doesn't require frequent port rate iterations and can achieve seamless interconnection across generations through simple optical path redirection, substantially extending hardware lifespan.

On the evening of September 18, Dekete issued an abnormal stock trading fluctuation announcement, stating that driven by AI computing power demand, the market is highly focused on OCS products. The company continuously tracks cutting-edge technology developments, with silicon-based OCS having received overseas sample orders but not yet obtaining bulk orders from overseas major manufacturers. However, given the high market enthusiasm and technical difficulty of OCS, large-scale applications still require time, and market prospects remain unclear.

Dekete previously stated that in the OCS field, the company focuses on silicon-based microsecond and nanosecond optical switching products, having launched several microsecond and nanosecond prototypes. In 2024, it received tens of millions of yuan in prototype orders, with similar-scale prototype orders expected to continue in 2025. The company is also jointly exploring various OCS applications with multiple domestic and international users.

In the first half of this year, Guangku Technology launched new products in optical communications, including two-dimensional multi-channel fiber arrays for all-optical switch applications. The company will strengthen R&D and production expansion of MxN high-density FAU for data center high-speed optical interconnection OCS applications in 2025, actively expanding new customers.

Lingyun Optics stated that facing AI intelligent computing centers' requirements for high bandwidth and low latency, the company's optical communication business has proactively introduced next-generation advanced optical communication products, laying out multiple products and solutions including OCS all-optical switching, OIO, and PWB photonic wire bonding.

Techjing Technology's wholly-owned Wuhan subsidiary has completed sample production of multiple high-speed optical engines and high-speed optical communication component products and is advancing customer verification. Regarding OCS, the company provides precision optical component products according to different customers' technical solutions.

On August 15, SMEE Electronics disclosed that its controlling subsidiary Silex Microsystems Technology (Beijing) Co., Ltd. successfully passed customer verification for contract manufacturing of a certain MEMS-OCS model and received purchase orders from the customer, initiating small-batch trial production of the first batch of MEMS-OCS 8-inch wafers.

Research reports point out that OCS currently has three mainstream solutions: First, the MEMS solution with Google as the core application customer; second, the Digital Liquid Crystal (DLC) solution primarily developed by Coherent, gradually being introduced into CSP supply chains; third, the Direct Beam Steering (DBS) solution, Polatis's exclusive technology that remains immature. Among these, Google, as the manufacturer with the largest investment and deepest application in the OCS field, has achieved quite mature applications with the MEMS solution.

According to Cignal AI estimates, the global OCS market size is expected to exceed $1 billion by 2028. Currently, OCS remains in the early penetration stage with considerable growth potential.

**Multiple Companies Simultaneously Experience Block Trading, One Just Disclosed Reduction Plan**

Accompanying the collective surge of OCS concept stocks, on September 18, Dekete, Lingyun Optics, Techjing Technology, and Focuslight Technologies simultaneously experienced block trading.

Specifically, on September 18, Dekete had 4 block trades totaling 11.5311 million yuan, with transaction prices all at a 15.24% discount to the day's closing price. Lingyun Optics had 5 block trades totaling 19.1909 million yuan, with transaction prices at a 14.03% discount to the day's closing price. Techjing Technology and Focuslight Technologies each had 1 block trade, transacting 4.9296 million yuan and 5.001 million yuan respectively, with prices at 20% and 2% discounts to their respective closing prices.

On September 19, Focuslight Technologies had another block trade worth 5.0157 million yuan, with the transaction price at a 2% discount to the day's closing price.

Some companies have recently disclosed shareholder reduction progress. On September 11, Focuslight Technologies announced receiving a notice from Yan Suibin, an acting party of the actual controller, stating that between September 1-11, he reduced holdings of approximately 63,000 shares through centralized bidding and block trading, representing about 0.0701% of total share capital, cashing out approximately 7.8254 million yuan. This reduction plan has been completed.

On September 17, Focuslight Technologies announced that the reduction plans of acting parties Ningbo Ningju, Ningbo Xinju, and Ningbo Jichen have been completed. Between September 1-17, these entities reduced holdings of approximately 583,500, 547,800, and 547,200 shares respectively, cashing out approximately 77.0846 million yuan, 72.3271 million yuan, and 72.2522 million yuan respectively.

From a stock price perspective, between September 1-19, Focuslight Technologies' stock price cumulatively rose 35.32%, while the Shanghai Composite Index fell 0.98% and the semiconductor sector overall gained 2.33%.

On September 1, Dekete announced that shareholders holding over 5% Qian Mingying and acting party Shen Liang, due to personal funding needs, plan to reduce holdings of no more than 2.9957% of total share capital (approximately 4.7418 million shares) between September 23 and December 22 through block trading or centralized bidding at market prices.

Between September 1-19, Dekete's stock price cumulatively rose 23.20%, while the electronic components sector overall gained 5.35%.

Besides the above companies, some company shareholders have terminated reduction plans early. On September 5, Guangku Technology announced that senior management Ji Guijun and Wu Wei, supervisor Zhou Chunhua, and shareholder XL Laser holding 4.6544% of company shares decided to terminate their share reduction plans early, with remaining unreduce shares not to be reduced during the plan period.

XL Laser, Ji Guijun, and Zhou Chunhua did not reduce any company shares; Wu Wei had already reduced 17,000 shares in July, representing 0.0068% of total share capital, at an average reduction price of 49.49 yuan/share.

Ji Guijun, Wu Wei, and Zhou Chunhua originally planned to reduce holdings of 30,000, 60,000, and 4,000 shares respectively through centralized bidding between June 13 and September 12. XL Laser originally planned to reduce 800,000 shares through block trading or centralized bidding between July 9 and October 8.

Between September 1-19, Guangku Technology's stock price cumulatively rose 29.23%, while the Shenzhen Component Index gained 2.95% and the communication equipment sector overall rose 9.57%.