US Bitcoin exchange-traded funds (ETFs) have seen outflows of $1.3 billion over the past two weeks, coinciding with an 11.6% drop in Bitcoin's price. Data from Farside Investors shows Grayscale leading the outflows with $517.3 million. The only fund to post positive results was BlackRock’s Bitcoin ETF, with inflows of $43.1 million. This is the worst outflow since April, when Bitcoin investment vehicles posted net outflows over $1.2 billion. Market commentators are concerned about further downward pressure due to Bitcoin sales from the German government and nearly $9 billion in BTC Mt. Gox creditor repayments expected in July.