I wouldn't read too much into those numbers. Here is what the fund's site says:
That link is two months old. As you can clearly see on the exchange itself, trading has indeed yet commenced. 
Topic: [2015-05-10] Shares Of Bitcoin Investment Trust Surge After Much Anticipated Deb (Read 672 times)
May 10, 2015, 09:17:13 PM
May 10, 2015, 07:29:24 PM
I wouldn't read too much into those numbers. Here is what the fund's site says:
Quote from: http://bitcointrust.wpengine.netdna-cdn.com/wp-content/uploads/2015/03/Fact-Sheet_Mar15.pdf
GBTC shares been approved for public quotation on OTCQX®, the top marketplace operated by OTC Markets, however, trading has not yet commenced and no assurances can be given as to whether an active public secondary market for the shares will develop or be maintained. All performance and fund information contained herein reflects the BIT’s ongoing private placement of restricted shares.
May 10, 2015, 03:27:54 PM
Shares Of Bitcoin Investment Trust Surge After Much Anticipated Debut
Bitcoins can now be traded on the public markets. After a long wait, Grayscale Investment’s Bitcoin Investment Trust (BIT) received formal approval on March 26 and began trading in May with the ticker GBTC.
Over the last few days the price of BIT surged, and at one point traded at US$133.70 per share.
http://cointelegraph.com/news/114209/shares-of-bitcoin-investment-trust-surge-after-much-anticipated-debut
Bitcoins can now be traded on the public markets. After a long wait, Grayscale Investment’s Bitcoin Investment Trust (BIT) received formal approval on March 26 and began trading in May with the ticker GBTC.
Over the last few days the price of BIT surged, and at one point traded at US$133.70 per share.
http://cointelegraph.com/news/114209/shares-of-bitcoin-investment-trust-surge-after-much-anticipated-debut
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