The core of the dealer's wash is to clear floating chips, common techniques and key points of identification:

1. Smash-style wash

• Sudden drop of 5%-10%, breaking key support levels, significant large order sell-off

• Key: A quick rebound after a drop, with volume not continuously expanding indicates a wash, while the opposite indicates risk

2. Sideways oscillation wash

• Narrow fluctuations (3%-5%), false breaks, testing patience

• Response: Pay attention to breaks in the range, a significant upward volume may signal a start

3. Needle-like wash

• Instantaneous sharp drop leaving a long lower shadow, quickly pulling back

• Key: Stabilizing at the original support level indicates a wash, breaking the level requires caution

4. News-related wash

• Spreading short-term negative news, taking advantage of panic selling

• Response: Verify the truthfulness of the news, rumors leading to declines may present a low-buy opportunity

Distinction between wash and unloading

• Main force control: Stable position during wash, significant outflow of chips during unloading

• Liquidity: Stable pool of funds during wash, large withdrawals accompany unloading

• Trend: Wash does not disrupt long-term upward trends, unloading leads to trend reversal

Core logic: Wash "scares away" retail investors, unloading "traps" retail investors; declines with low volume and rapid corrections are often signs of wash, patiently holding chips can catch the main upward wave.