乐华娱乐(02306.HK)日内涨超20%，股价站上4港元关口。

Group 1 - The core point of the article is that Lehua Entertainment (02306.HK) experienced a significant increase in its stock price, rising over 20% and surpassing the 4 HKD mark [1] Group 2 - The stock price surge indicates strong market interest and potential positive sentiment towards the company's future performance [1]