12.9 Zheng Chen's Midday Silk Road

The four-hour chart shows a narrowing range forming a triangle, with a soft technical outlook but hidden rebound momentum. Key resistance above is 4205-4230, while support below is 4176-4151, with the core battle for bullish and bearish positions focusing on the 4195-4200 range.

With the Federal Reserve's decision approaching, market sentiment is cautious. It is advised to take light positions within the range and strictly control risks:

Long positions: Layout at 4165-4170, target 4195-4200; if there is a deep pullback to 4150-4152, consider adding to long positions.

Short positions: Enter on a rebound at 4205-4207, target down 20 points; around 4215 can add to short positions lightly.