support level, and resistance level? Head and shoulders pattern? Size of breakdown trend after head and shoulder? Double Top?
Support level, buying is expected to emerge that prevents further price decreases,
Resistance level, selling is expected to emerge to prevent price increase.
Head and shoulders = price approaches a range of values but fails to maintain above a certain price.
Size of breakdown of head and shoulder if price declines beyond neckline for head and shoulder, downt end is projected to continue from that price by the size of the head and shoulder pattern.
When the price reaches a level that the buying pressure becomes weak, and the price drops.