The investment firms of George Soros and Stanley Druckenmiller cut their holdings in the tech "Big Seven" long before this year's booming tech rally turned into a sharp decline in mid-July. Soros Fund Management sold some of its Alphabet holdings totaling $58 million, and about $15 million in Amazon stock, according to regulatory filings in the three months to June. Druckenmiller was one of the investors who sold off Nvidia. Enthusiasm for artificial intelligence companies has accompanied the ch...