Over the past two weeks, the market cap of major cryptocurrency mining stocks has significantly increased, with most companies achieving double-digit percentage growth. Marathon Digital (stock code MARA) saw its market cap surge from $5.51 billion on July 8th to $7.56 billion at the end of this week, with an increase of more than 37% in five days and maintaining a 27% increase as of July 19th, 11 days later. Riot Platforms (RIOT) followed a similar pattern, climbing from $2.78 billion to $3.67 billion and achieving a net increase of 32% in the second week of July, closing at $3.16 billion last weekend. The growth rate of Hut 8 mining company (HUT) was smaller, increasing from $1.58 billion two weeks ago to $1.76 billion at the end of this week, with an increase of 11%.