Lot size is the unit used to express the quantity of trading contracts. It is not just an abstract decimal figure; each lot corresponds to a specific quantity of gold or silver. At Lucky Gold, 1 lot of London Gold equals 100 troy ounces, and 1 lot of London Silver equals 5000 troy ounces. The minimum trading volume for both products is 0.01 lot.

Converting Lot Sizes for London Gold

Calculated at 100 ounces per lot: 0.01 lot equals 1 ounce; 0.1 lot equals 10 ounces; 0.5 lot equals 50 ounces; 1 lot equals 100 ounces.

Although 0.01 and 0.1 differ by only one decimal place, their actual contract sizes are ten times apart.

London Silver cannot be judged using the same logic as gold

1 lot of London Silver represents 5000 ounces. 0.01 lot = 50 ounces, 0.1 lot = 500 ounces, 1 lot = 5000 ounces.

This explains why the price exposure for "0.1 lot" is completely different for gold and silver. When switching trading instruments, always check the contract unit before deciding your lot size.

What is affected by lot size

As lot size increases, margin occupied, profit and loss from price swings, spread costs and potential overnight charges all scale up accordingly.

For example, a USD 1 price movement for 1 lot of London Gold creates a theoretical floating P&L of approximately USD 100; 0.1 lot is about USD 10; 0.01 lot is about USD 1.

The 0.01-lot minimum does not suit everyone

The minimum trading volume permitted by the system only defines the technical order range. The appropriate lot size depends on your account balance, planned stop-loss distance and acceptable loss amount.

Some traders calculate lot size purely backward from available margin. While this may allow the order to open, it leaves no buffer for normal market fluctuations. This method gives the impression of high capital utilisation, yet leaves the account extremely tight.

A quick pre-order check

Confirm the trading instrument, verify the lot size, then convert the lot into the corresponding ounce quantity. Finally, ask yourself: if the price moves USD 1 or USD 0.1 against my position, how much will this trade fluctuate in dollar terms?

Making this a habit helps catch input errors or over-sized positions before submission.

Converting lots into ounces makes it easier to understand

1 lot of London Gold = 100 ounces, so 0.01 lot = 1 ounce and 0.1 lot = 10 ounces, 0.5 lot = 50 ounces. 1 lot of London Silver = 5000 ounces, so 0.01 lot = 50 ounces. Even though both show 0.01 lot, the underlying contract quantities differ greatly.

This is why you cannot carry over your usual lot-size intuition from gold to silver. 0.1 lot of gold is 10 ounces, while 0.1 lot of silver is 500 ounces. Volatility profiles and contract specifications vary between instruments. Lot size is merely a standardised ordering unit. The actual change to your account is determined by: Lot Size × Contract Unit × Price Change.

Lot size is not the same as margin

Lot size describes position scale, while margin refers to the funds reserved in your account to hold that position. At Lucky Gold, the margin requirement for London Gold is USD 1000 per lot, and USD 650 per lot for London Silver. Taking gold as an example, 0.1 lot requires roughly USD 100 of margin under current rules; yet 0.1 lot equals 10 ounces, so every USD 1 swing in gold price creates around USD 10 of theoretical floating P&L.

Do not mistake the USD 100 margin amount for the maximum possible loss on the trade. If the market keeps moving against you, floating losses will continue to change, and your account must maintain the required margin level at all times.

Why new traders often misunderstand 0.01 lot

The minimum 0.01 lot is the smallest order size the platform system supports. It does not mean every trader should start with 0.01 lot, nor that only the corresponding margin amount needs to be set aside. Whether an account can support a given lot size depends on account equity, stop-loss placement, intended holding period and your maximum acceptable loss.

Simple example: 0.01 lot of gold equals 1 ounce. With a planned 20-dollar stop-loss and ignoring other fees, the theoretical price risk is about USD 20. If you widen the stop-loss to 50 dollars, the risk rises to roughly USD 50. Even with the same 0.01 lot, different trading plans carry different volatility exposure.

How to avoid lot-size input errors

On mobile trading interfaces, 0.01, 0.1 and 1.0 only differ by a decimal point, yet the monetary impact can be 10x or even 100x larger. Before submitting orders, double-check the product name, trade direction and lot size — especially when switching from demo to live trading, or switching between gold and silver.

We recommend memorising your commonly used lot sizes and their ounce equivalents. When you see 0.1 lot, you will automatically associate it with “10 ounces for gold” or “500 ounces for silver”, which reduces mistakes compared to remembering only a decimal number.

Risk Warning: Margin trading magnifies the impact of price movements on your account. Lot sizes should be set based on your account equity, available funds and risk tolerance.