Hope this helps
Wow, what an excellent resource you've taken the time to create. It will also help people who want to diversify into more traditional vehicles such as investment trusts.
I keep an eye on trusts for the discount, for example, I prefer to get exposure to Tesla and Amazon through trusts such as Scottish Mortgage (SMT) and US Growth (USA).
However, when I look at the Net Asset Value on these, I can see the correlation to stock market sentiment in general, but I can't see why the Grayscale premium tanked on 21st December when Bitcoin itself kept on rising. It honestly must be some sort of quirk to do with xmas trading.
What do you reckon?
I will check it out later today because that does seem interesting. I know it's based on supply and demand, but I will see if I can dig something out that could have played a role in that.