Quantity Multiplier

AutoTrader Web’s PMS and Master-Child copy features use a quantity multiplier to calculate order quantity automatically. It is useful when you manage accounts that have different capital.

[Acc./Group Quantity] = [Order Quantity] * [Acc./Group Multiplier]

The default value for the multiplier is 1. It can also be a fraction. For example, a multiplier of 0.5 results in half the original order quantity.

Where it is used

• PMS Copy – Create a group account to bring together accounts with similar capital, then assign a multiplier to the group.
• Master-Child Copy – The multiplier is applied for each individual account.

Example

A trader has 10 accounts. 5 of them have a capital of 10 lacs, and the remaining 5 have a capital of 20 lacs.

A common need here is to send double quantity to the accounts with 20 lacs capital when copying an order across all accounts.

To do this, the trader creates two group accounts:

• Group A – Multiplier 1.0 (holds all accounts with 10 lacs capital)
• Group B – Multiplier 2.0 (holds all accounts with 20 lacs capital)

While placing the order, the user ticks the Use Group and Multiplier options.

Now if the trader is trading a NIFTY option and enters quantity as 50 (which is 1 lot), the system calculates quantities for each group based on the multiplier:

• Group A Quantity = 50 * 1 = 50
• Group B Quantity = 50 * 2 = 100

The trader then presses the buy/sell button, which copies the order with the different quantities. This is shown in the following video.

Group Account Level Quantity Multiplier Demo

Multiplier Rounding

We recommend using whole numbers as multipliers. You can do this easily by keeping the account with the lowest capital as the master account, or by giving the group with the lowest capital a multiplier of 1. Using fractional multipliers adds unnecessary complexity.

– Admin

Multiplier rounding helps avoid an invalid quantity error. It applies to derivatives when the multiplier is a decimal number with a non-zero fractional part (example: 1.5).

Most API systems take quantity in multiples of the lot size, and so does our system. For example, to buy 1 lot of a NIFTY contract you enter quantity as 50.

This becomes a problem when the multiplied quantity is not a multiple of the lot size. For example, if the order base quantity is 50 and a group/account has a multiplier of 1.5, the multiplied quantity becomes 50 * 1.5 = 75. This returns an error from your broker, because 75 quantity is like buying 1.5 lots of NIFTY, which is wrong.

To prevent this, our system does multiplier rounding based on the lot size of the contract.

By default, the Multiplier Rounding setting is ON. You can turn it off from Menu: Settings -> General. As of now, it applies only to NSE derivatives, because lot size data for other exchanges is either not reliable or is interpreted differently by different brokers.

Here is another example:

Field	Value
Order contract	BANKNIFTY Option
BANKNIFTY lot size	25
Order base quantity	275 (11 lots)
Group/acc. qty. multiplier	0.5
Quantity (rounding ON, default)	150 (6 lots)
Quantity (rounding OFF)	138 (invalid quantity)

More Examples

Consider the following examples for NIFTY (lot size = 50) and base order quantity = 50 (1 lot).

• Multiplier 1.49 (50 * 1.49 = 50 * 1 = 50)
• Multiplier 1.50 (50 * 1.50 = 50 * 2 = 100)
• Multiplier 1.49 (50 * 1.51 = 50 * 2 = 100)