Nvidia Corp. NVDA, trading just two percentage points below its all-time high, has emerged as a catalyst for large ETFs ahead of its earnings announcement on Wednesday. With the AI sweetheart having contributed a staggering $2 trillion in market capitalization gains since April, the stock is a behemoth mover of tech- and semiconductor-oriented funds. Concentration is everything. Nvidia currently represents about 22% of VanEck Semiconductor ETF SMH, and thus is perhaps the single most powerful name within the fund. The fund is up 24% year-to-date. The Tech Select Sector SPDR Fund XLK controls approximately 16%, and the Vanguard Information Technology...