Tesla’s recent rally has boosted its stock to become the largest-ever weighting in ARK Innovation ETF (ARKK). The electric car company’s surge in value has led to it comprising a significant portion of the fund’s holdings. This increase in Tesla’s weighting demonstrates the impact of the company’s strong performance on the overall portfolio of ARKK. Tesla’s rise in value has propelled it to the forefront of the ETF, showcasing its growing influence in the market. This development highlights the importance of monitoring individual stock performance within investment portfolios.