不好意思自问自答一下, IB 有回复告知, 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 开户后, 各种 Data Source 我只选取 "Fees Wavied" 的项目,
: 然后就收到一封 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, 就会被多收取什么资料服务费之类的?
: (我的帐户只有看到 NYSE Imbalances 的资料申请还在 Pending 状态)
: 感谢提点.