Board lot
What a board lot is on Bursa Malaysia, why most trades use 100 units, how odd lots differ, and a hypothetical Company A example in RM.
What is Board lot?
A board lot is the standard trading unit on Bursa Malaysia, which is 100 units of shares for most securities. Trades in smaller quantities are called odd lots. Knowing the board lot helps you estimate the minimum cash needed for a standard order and read your order size correctly.
How it is calculated
No formula is needed, only simple division. Board lots equal total units divided by 100, rounded down. Odd-lot units equal total units minus board lots times 100. Order value equals total units times the price per share.
How Malaysian investors use it
The board lot sets the usual unit of an order, so it shapes the minimum amount needed for a standard trade. Odd lots can be handled differently from board lots, so confirm how your broker processes them. Lot rules can also differ for some securities, so check the specific counter.
Worked example: Company A
Company A trades at a hypothetical RM2.50 per share.
- One board lot = 100 × RM2.50 = RM250.
- An order of 250 units = 2 board lots (200 units, RM500) plus 50 odd-lot units (RM125).
- Total order value = RM625.
Common mistakes
- Assuming every security uses a 100-unit lot.
- Looking only at the share price and ignoring lot size and charges.
- Overlooking how odd lots are processed on a small order.
Related terms
- Main Market – Bursa’s main board for established companies.
- ACE Market – the market for growing companies, with different listing requirements.
- Volume – shares traded in a period, a separate measure from lot size.
Frequently asked questions
Is a board lot always 100 units?
For most Bursa securities, yes, but check the specific counter because some rules differ.
What is an odd lot?
Any quantity that is not a whole multiple of 100 units, such as 50 units.
Does lot size change the share price?
No. Prices are set by trading; lot size only determines how many shares make up a standard order.
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