According to Odaily, Lookonchain's monitoring data for June 28 shows that Grayscale and Fidelity have increased their Bitcoin holdings. Grayscale added approximately 60 Bitcoins to its portfolio, valued at around $3.6 million. This brings their total Bitcoin holdings to 275,955, worth an estimated $16.89 billion.

In the same vein, Fidelity added 109 Bitcoins, valued at approximately $6.7 million. This addition brings their total Bitcoin holdings to 167,900, valued at an estimated $10.28 billion.

However, the data also revealed that nine Bitcoin ETFs collectively reduced their holdings by 596 Bitcoins, valued at approximately $36.5 million. The report did not provide further details on the reasons behind the increase in holdings by Grayscale and Fidelity, or the reduction by the Bitcoin ETFs.