Tether said it will accept audits from one of the Big Four accounting firms, but hasn't specified which one yet. The market will initially interpret this as a step forward in transparency, especially along the compliance line for stablecoins. For $ETH , the impact is more about on-chain capital flows and DeFi sentiment; if the audit actually materializes, on-chain stablecoin credibility will look better, and conversely, the suppression on risk assets will have one less layer.