This breakthrough of $BB was also driven by the surge of the overall market, which itself has a trend of breakthrough, and it happened to coincide with this wave of the market's favorable conditions, resulting in a direct increase of 42%.
A good increase, with contract leverage of 5 times, 10 times, or 15 times, can be said to yield decent returns. Even for spot trading, a 42% increase is also quite impressive.
The strategy of the big player remains low leverage, focusing on the breakthrough of the main trend. It does not depend on short-term fluctuations. The focus is on the larger trend cycles; one should not be obsessed with short-term gains of 3%, 5%, or 10%, feeling overly pleased or anxious about any small fluctuations, unable to bear even a slight volatility, only wanting to jump in during surges and drops. If that's the case, you might as well become the adopted child of the God of Wealth!