Italics => They are big banks valuation (normally 20+ years), buy at low and hold for years. There are plenty of data and analysis by the banks/funds analysts to do all valuation calculations.
In addition, most of the banks value higher for follow-on commission purposes. Since TSLA needs lot of money, billions, they promote the working horse and get paid by huge commissions on 5B follow-on every quarters. If they need to drop the value, any time they can sell and downgrade. Big banks has both flexibility and power for that.