SK Hynix has raised a significant amount of money in a US offering, with reports varying on the exact amount, ranging from $26.5 billion to $29 billion. The company's listing on the Nasdaq has reportedly been well-received, with its stock surging and potentially surpassing Micron's market capitalization. The listing is seen as a test of the memory market and has sparked comparisons between SK Hynix and Micron, with some outlets suggesting SK Hynix may be the better investment.