不好意思自问自答一下, IB 有回覆告知, 虽然是免费的服务 (not fee liable), 不过还是要线上签署相关文件. 大概是怕被第三方修改资讯之类的. Dear Client, You received the below emails because your request NYSE Order Imbalance data. While these services are not fee-liable, they do require prior approval from the NYSE. If you would still like to receive these services, please complete the agreement. If not, let me know and I will cancel your request. Regards, (人名删除) Interactive Brokers Market Data Services ※ 引述《tipsofwarren (tipsofwarren)》之铭言： : IB 开户後, 各种 Data Source 我只选取 "Fees Wavied" 的项目, : 然後就收到一封 email, 希望我线上数位签署 : "Agreement for Receipt of Consolidated Network A Data and NYSE Market Data" : 不知道是否签下去, 就会被多收取什麽资料服务费之类的? : (我的帐户只有看到 NYSE Imbalances 的资料申请还在 Pending 状态) : 感谢提点. --

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