BYD Electronic's stock plummeted 5.04% during intraday trading, extending its recent downtrend as negative analyst sentiment and weak business fundamentals weigh on investor confidence.

The sharp decline follows Citibank's recent move to cut BYD Electronic's target price to HK$22.6 and assign a "sell" rating, suggesting further downside potential. Analyst concerns stem from the company's disappointing first-quarter performance, where revenue of RMB 38.2 billion represented a 32% quarter-over-quarter decline - significantly worse than the five-year average seasonal drop of 16%.

Citibank attributed the weakness to iPhone seasonality and a sluggish Android business, with the company's gross margin falling 1.1 percentage points year-over-year to just 5.2%. Management's guidance for flat full-year revenue, coupled with expectations of declining Android EMS business, has fueled cautious market sentiment toward the company's second-quarter earnings prospects.