In the 'old days' perhaps (when 'settlement' took 14 days) .. however these days the transactions are dealt in minutes ... ...
Having said that, most Brokers will let you deal on credit (but only if you have a squeaky clean Credit Score plus a decent pile of other shares in your account (which they could sell to get the cash should you fail to pay up)
In theory yes. In practice no. This is because a broker will want collateral before buying anything.
Other than that you buy shares (possibly with extended 10 or 15 day settlement then sell with a coinciding settlement and settle on balance (loss or profit) You could even roll over the settlement if necessary.
brokerage firms have various requirements for extending credit, including employment
Yes, it is common to buy on credit. If the shares go the wrong way though then you are fully liable.
To do this you only need to find a broker that will act on your behalf AND extend credit.
No you can not
H
If you brought and sold shares with no money and sold before any money exchanged hands?