請翻譯下這句話是什么意思，并分析一下句子結構

【Among the biggest地點狀語】【 at the moment 時間狀語/或定語】【 is謂語】【 “collateral management”主語】:【 helping financial institutions and companies manage the collateral that they are owed or that regulators want them to post with central counterparties on their derivative transactions v-ing形式短語，解釋說明主語】.
helping financial institutions and companies manage【 the collateral先行詞】【 that they are owed or that regulators want them to post 定語從句】with 【central counterparties介詞賓語】【 on their derivative transactions介詞短語，定語】.

句子意思：
目前最大的就是“抵押品管理”：即幫助金融機構和公司管理他們擁有的或管理者根據(jù)衍生交易想要他們給交易方公布的抵押品。
祝你開心如意！