I think to see full details and without the 15 min delay you'll have to pay for access.
This should be an interesting week as this develops, I had hoped this would have been last week but I'd obviously underestimated how long it takes to get shares through the process it takes to put them up with an Ask price.
However consider that BIT is limited to "high net worth" investors and if I was someone with a long term interest in holding say 10,000 already matured shares as a small % over my portfolio I would be tempted to :
1) Buy 10,000 new shares at the current market rate (1,000 BTC x $235 = $235,000)
2) Sell 10,000 matured shares at the best GBTC rate I can get (say avg. 10,000 shares x $40 = $400,000)
3) Bank Profit ($165,000)
4) Hold the 10,000 new shares for 1 year (again)
This assumes anyone investing has money in the bank they can spend immediately and they don't need to wait to sell their existing shares before they buy new shares.
Your last assumption is not necessary. Just switch 1) and 2)
So sell (2) and they buy (1) using the funds generated ?
Using the traditional fiat system there are delays involved moving money and arranging purchasing new shares which might leave you behind. The above tactic almost guarantees profit if someone buys now as long as GBTC trading stays above $25 (allowing for fees).
Is there any way we can see if BTC are being bought for the BIT fund ?
I'm guessing these won't be in the same address but someone might have done the analysis.
(I'll do a google I think)