The value you see in your portfolio differs due to the currency conversion from SGD to USD. This is because your funds are converted through Saxo at a specific forex rate based on the time your fund transfer is processed.
However, the value of cash shown in your dashboard is not based on that actual FX rate which your cash got converted at. Instead, it is based on the latest FX rate we have logged in our system, which is typically the FX rate based on the market close price.
Here's an example to illustrate. Let's say $500 SGD got converted to $385 USD based on this rate (1 USD = 1.3 SGD).
However, the FX rate we display is based on the market close rate of 1 USD = 1.25 SGD. This means that the $385 USD will be reflected on your dashboard as $481 SGD.
You can see the current exchange rate reflected on your dashboard. This gets updated each business day along with your portfolio value using market closing prices of the previous trading day.
Please be assured that we received your full transfer of $100 and converted all $100 to USD. Furthermore, you will never be charged any fees before your funds are invested.