Cathie Wood's ARK funds sold shares of Tesla (TSLA) in order to increase their stake in Zoom Video Communications (ZM) following the video communications company's disappointing earnings results. The Ark Innovation ETF (ARKK), the fund's flagship investment vehicle, sold $136 million in Tesla stock while purchasing $112 million in Zoom stock. ARK Next Generation Internet ETF (ARKW) purchased Zoom for $22 million after selling $23 million worth of Tesla stock to fund the purchase.