The A-share storage chip sector fell at the beginning of trading, with NN hitting the limit down, DAWEI dropping over 6%, and V-Test, Biwin, and TWSC all experiencing declines

This week, a total of 23 stocks increased by 30%

This week, a total of 23 stocks rose more than 30%, among which NN and HXCX rose more than 60%. NN has achieved 8 consecutive limit-ups, with its main business covering nighttime economy and smart cities, and no significant changes have occurred. On the downside, 80 stocks have accumulated a decline of more than 10%, with 8 stocks declining more than 20%

NN: The stock price has risen significantly in the short term, posing risks of market sentiment overheating and irrational speculation

NN issued a risk warning announcement, pointing out that since September 2025, the stock price has increased by 198.04%. From October 23 to 31, it touched the abnormal fluctuation indicator three times, with a cumulative increase of 94.89%. The company's stock price has risen significantly in the short term, posing risks of market sentiment overheating and irrational speculation, and has seriously deviated from the SSE Index and the decoration and renovation industry index. Investors should be aware of trading risks

NN: The company's main business has not undergone significant changes

NN stock trading risk warning announcement, the company's main business is centered on two core business systems: night economy and smart city, covering areas such as landscape lighting, cultural tourism night tours, smart streetlights, and smart parking operations. Currently, there have been no significant changes in the company's main business

Storage chips continue to be strong, LONGSYS surges over 10%

Storage chips continue to be strong, LONGSYS surged over 10%, Bojay and NN both hit the daily limit, Biwin, Shannon Semi, and Puya semiconductor followed suit