GraniteShares 2x Long MARA ETF Declines Amid Market Volatility The GraniteShares 2x Long MARA Daily ETF witnessed a 2.22% drop, closing at $18.53. Despite recent gains, the ETF faces challenges with fluctuating cryptocurrency markets. Over the past five days, the fund has seen an 18.48% increase, but volatility remains a concern for investors.45