This concept is derived from Fibonacci retracement levels. After a strong displacement, institutions often drive price back into a "discount" zone (for buys) or a "premium" zone (for sells) to reload before the next leg. The OTE zone is typically the retracement of the initial displacement leg.
The Silver Bullet setup is only executed during two specific New York time windows: inner circle trader - ict forex ict notes.pdf
Watch price aggressively run past a key short-term high or low to grab BSL or SSL. This concept is derived from Fibonacci retracement levels