Analysis of Driving Factors and Market Impact of the Strong Performance of Tianhai Defense (300008)

Tianhai Defense (300008) has shown strong recent performance, with its stock price rising 15.62% on November 19, hitting a 5-year high since November 2020 [1]. Multiple factors have jointly driven this: On the fundamental front, in the first three quarters of 2025, revenue increased by 34.5% year-on-year to 3.148 billion yuan, and net profit rose by 202.12% year-on-year to 232 million yuan [0]; At the industry level, geopolitical tensions (China-Japan relations) have pushed the national defense and military industry sector to become a capital hotspot, with the marine equipment sub-sector performing prominently [8]; At the company level, it showcased multiple defense special equipment products at the 8th International Diving and Salvage Exhibition [1], its wholly-owned subsidiary signed a contract for the construction of 6 7350DWT multi-purpose general cargo ships [0], obtained 22 patent authorizations in the first half of 2025 [0], and the number of shareholders decreased from 150,000 in August to 124,500 in November, indicating concentrated shareholding [0]. From a technical perspective, the MACD and KDJ indicators are in a bullish arrangement, and a volume ratio of 3.93 shows increased capital attention [2][3].

Cross-domain correlations are obvious: Fundamental improvements (performance, contracts, patents) combined with technical strength (indicators, trading volume) and industry benefits (geopolitical factors) form a resonance effect. Deep implication: The company has achieved a performance reversal through business transformation and technical accumulation; the cyclical opportunities in the military industry sector combined with the company’s own growth momentum have driven the stock price to break through.

: On November 18, main funds net sold 113 million yuan, accounting for 9.02% of the turnover [6], and short-term capital divergence may lead to fluctuations; the overall market turnover shrank (Shanghai Composite Index turnover decreased by 200 billion yuan [4]), leading to insufficient liquidity support.
: The national defense and military industry sector is continuously affected by geopolitical factors, and demand in the marine equipment sub-sector is expected to increase; the company’s enhanced technical strength (patents) and growing orders (ship contracts) provide support for long-term development.

Tianhai Defense (300008) has seen its stock price rise by over 94% in 2025 (from a 52-week low of 4.21 yuan to a high of 8.18 yuan) [0], and has recently performed strongly due to multiple positive factors. Performance has improved significantly, technical indicators are good, but attention should be paid to the risk of short-term capital outflow. Investors can pay attention to the sustainability of the sector and the company’s subsequent orders.