Core Insights - The US government shutdown that began on October 1 is likely to delay significant developments for altcoins, including the approval of altcoin spot ETFs and the conclusion of investigations into Digital Asset Treasury companies [1][3]. Group 1: Impact on Altcoin Spot ETFs - Expectations for the approval of altcoin spot ETFs, particularly a Solana ETF, were high, but the government shutdown may postpone these approvals indefinitely [1][4]. - The SEC has announced that it will not review or approve new financial product registration statements during the shutdown, affecting the timeline for ETF approvals [2][4]. - Industry observers had anticipated the launch of several ETFs from asset managers like Grayscale and Canary, but these plans are now uncertain due to the shutdown [4][5]. Group 2: Investigations and Regulatory Actions - The ongoing FINRA investigation into over 200 Digital Asset Treasury companies is also likely to be delayed due to the government shutdown, which has raised concerns about unusual stock price and trading volume surges [6][7]. - This joint SEC and FINRA investigation is focused on potential insider trading or violations of Regulation Fair Disclosure, but the pace of the investigation will be affected as non-essential services may be suspended [7].