嗯，来：如果是工作的话(PR)，不需要押金。 POEMS 接受任何银行的账号。 我在OCBC的contra period is T+5, i just open the account, he say OCBC usually give client T+5 days for contra, u can check with ur broker. for the trading limit, u also can negotiate with ur broker, show that u r active with ur monthly account summary. they usually give u S$30K limit, but can increase gradually.