Tesla acknowledged " supply chain and logistics challenges" in its third quarter delivery statement, and thanked customers "for their patience" over the quarter, while Musk admitted the carmaker was "operating under extreme supply chain limitations regarding certain 'standard' automotive chips", and told investors in July that it could impact production rates over the second half of the year. Related: What Going Green Means for Companies and Investors Tesla shares were marked 1.75% higher in late-morning trading Tuesday to change hands at $805.60 each, after hitting a seven-month high of $810.25 earlier in the session. Short interest in Tesla remains elevated ahead of its third quarter earnings on October 20, with data from S3 Partners pegging bets against Tesla at around $21 billion, or 3.34% of the stock's outstanding float. TheStreet Recommends: Investor Playbook: How to Play the Resource Transition - FREE Webinar