'Do' and 'does' are the two forms in the current indefinite tense in the verb 'to do.' Which 1 you are going to use will mainly depend on the sentence's issue. Their utilization is nearly equivalent, apart from a single occasion where You may use 'do' rather than 'does.' https://financefeeds.com/your-bourse-partners-with-blockfills-to-unlock-new-liquidity-avenues-for-institutional-clients/