"investor"の翻訳英語に:

辞書日本-英語

小投資家は入れないとand it was entirely legal, 思えるんだa small investor couldn't get in. 大銀行がそこに控えているだろうからねThe big banks would be in there.

You could figure if there was no risk and it was entirely legal, a small investor couldn't get in.