The reason market tends to test those weak swing points is that there really wasn’t any strong
rejection at the swing point, so the market participants want to try and test if there isn’t somebody willing to trade above the weak highs (or below weak lows). Why the market does that? The reason is that the more trades and volumes executed, the better for big institutions
who need to enter their positions and for market makers to make more money for pairing the
buying with the selling orders