NIO is a company that makes electric cars. People buy and sell shares of this company, which are pieces of the company that they own. On Friday, something happened that made people want to buy or sell more shares of NIO than usual. This caused the price of the shares to change a lot in one day. Sometimes when this happens, it can be because there is new information about the company, or because some important person or group bought or sold a large number of shares. The article does not say exactly what caused the change on Friday, but it might be interesting for people who own shares or want to buy shares of NIO to find out more. Read from source...

Key points:
- The article is about the performance of NIO shares on Friday, May 28th, 2021.
- It mentions a limited time deal that gets users pro at half-price and promotes Benzinga Pro services.
- It does not provide any clear explanation or analysis of what caused the fluctuations in NIO's stock price on that day.
- It cites Jim Cramer, a well-known financial analyst and TV personality, as an authority figure, but does not mention his track record or credentials in the electric vehicle industry.
- It uses vague terms like "analyst color", "trade ideas", "unusual options activity" without defining them or providing any sources for verification.
- It relies on emotional appeals and hyperbole, such as "best stocks & ETFs", "power pro users to win more", "get this deal".

Summary:
The article is a poorly written piece of clickbait that tries to lure readers into buying Benzinga Pro services by exploiting their curiosity about NIO's shares on Friday. It does not offer any valuable or informative insights into the market dynamics or the company's performance. It uses unsubstantiated claims, vague terms, and emotional language to persuade readers without providing any evidence or credibility.