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When the leaving wave from Grayscale ends, the market will calm down. Don't let this short term movement affects your own long term investment plan.
The wave of departures from Grayscale was to be expected, as sorry as I am personally. I have always given Grayscale a lot of credit for being one of the pioneers here and creating an easy way for larger investors in particular to invest in BTC.
To put the 14k BTC in perspective: Yesterday, the global trading volume of BTC was at $25,364,926,934 USD, which is about 700k BTC. The sale of Grayscale is therefore just 5% of the daily (!) trading volume, should Grayscale sell it all at once and not spread out in tranches over several days.
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