Hong Kong Stock Lot Size Calculator: How Much Is One Board Lot?
HK stocks trade only in fixed board lots, and the lot size is different for every stock. Pick a stock below to see exactly how many HKD and USD you need for one lot, and whether your broker's minimum commission is going to eat an outsized chunk of a small trade.
Key Takeaways
- • Board lot size is set per stock, not per exchange. Tencent trades in lots of 100 shares, HSBC in lots of 400, and the CSOP FTSE China A50 ETF in lots of just 25.
- • A flat broker minimum commission can quietly eat 3%, 5%, even 10%+ of a small board-lot trade. This calculator flags that before you place the order, not after.
- • HKEX is standardising board lots to 8 sizes in 2026, and several stocks on this page, HSBC included, are likely to get a smaller, cheaper lot within the next year.
Hong Kong Stock Lot Size Calculator
Tencent Holdings (00700)
HK$458 · 100 shares/lot · as of 13 Jul 2026
Check your own broker's fee schedule and current spot rate. Many brokers charge a $1-3 flat minimum per HK-listed trade, and this field defaults to a rough mid-market FX rate.
Total Cost (HKD)
HK$45,800
100 shares
Total Cost (USD)
US$5,872
@ 7.80
Cost per Lot (HKD)
HK$45,800
100 shares/lot
Cost per Lot (USD)
US$5,871.79
Commission-efficient trade
Your $3.00 broker minimum is about 0.05% of this 1-lot trade.
How much is one board lot? A few real examples
| Stock | Lot Size | Price (HKD) | 1-Lot Cost |
|---|---|---|---|
| Tencent Holdings00700 | 100 | 458 | HK$45,800 |
| HSBC Holdings00005 | 400 | 153 | HK$61,200 |
| AIA Group01299 | 200 | 74 | HK$14,800 |
| Alibaba Group09988 | 100 | 110 | HK$11,000 |
| Meituan03690 | 100 | 83 | HK$8,300 |
| BYD Company01211 | 100 | 85 | HK$8,500 |
| HKEX (Hong Kong Exchanges)00388 | 100 | 430 | HK$43,000 |
| Tracker Fund of Hong Kong02800 | 100 | 24.75 | HK$2,475 |
| CSOP FTSE China A50 ETF02822 | 25 | 16.2 | HK$405 |
Prices are approximate reference snapshots from mid-July 2026 for illustration only. Always check the live quote and current board lot with your broker or HKEX before trading.
Odd lots: what happens if you can't afford a full board lot
Any share holding smaller than a full board lot is called an "odd lot." If Tencent trades in lots of 100 shares and you only want to put in HK$5,000, that buys roughly 11 shares, an odd lot rather than a full lot. Odd lots usually trade off the main order book, through a separate matching mechanism with wider bid-ask spreads and thinner liquidity than the round-lot market.
The math above is exactly why odd lots and minimum commissions are a bad combination. A flat US$3 minimum commission on a US$100 odd-lot trade is a 3% haircut before the stock has moved a single cent; the same US$3 on a US$2,000 full-lot trade is 0.15%. The calculator above turns that into the commission-efficiency verdict, so you can see the drag before you place the order, not after your statement arrives.
Broker support for odd lots also varies. Some platforms built for retail investors let you buy and sell odd lots directly; others only let you sell an odd lot you already hold, and will reject a buy order that isn't a whole multiple of the board lot. Check this before you assume a small budget lets you buy "a few shares" of any HK stock you like.
Why HKEX is standardising board lots in 2026
HKEX currently allows 44 different board lot sizes across its listed companies, ranging from 10 shares to 100,000 shares per lot, a legacy of decades of individual listing decisions. A consultation paper published in December 2025 proposed collapsing that down to eight standard sizes (1, 50, 100, 500, 1,000, 2,000, 5,000 or 10,000 shares) and capping the minimum lot value at roughly HK$1,000-50,000.
New listings must adopt one of the eight standard sizes from July 2026 onward. Existing issuers (roughly 650 of them, including names as large as HSBC, AIA and Xiaomi) get a transition window to fall in line. BYD moved first, cutting its own board lot from 500 shares to 100 shares, which dropped the minimum cash needed for one lot by about 80% at its then share price.
The practical takeaway for this calculator: treat every lot size here as a snapshot, not a permanent fact. HSBC at 400 shares/lot today could plausibly move to 100 shares/lot within the next year or two, which would cut the minimum HKD outlay roughly fourfold without the share price changing at all. Recheck the live lot size on your broker's order ticket every time. It is a free, one-click check that this whole reform makes worth doing.
Ready to actually place the order?
Next: how to buy HK stocks from the US →Frequently Asked Questions
What is a board lot on the Hong Kong Stock Exchange?+
A board lot is the minimum tradeable unit HKEX assigns to each listed stock. Every company sets its own lot size, and that number stays fixed for long stretches, but it varies a lot between stocks. Tencent trades in lots of 100 shares, HSBC in lots of 400, and the CSOP FTSE China A50 ETF in lots of just 25. You buy and sell in whole lots; you cannot place an order for 37 shares if the lot size is 100.
How many shares are in one board lot of Tencent, HSBC, and other major HK stocks?+
Based on this calculator's reference data (July 2026, always confirm the live lot size with your broker before trading): Tencent Holdings (00700) 100 shares/lot; HSBC Holdings (00005) 400 shares/lot; AIA Group (01299) 200 shares/lot; Alibaba Group (09988) 100 shares/lot; Meituan (03690) 100 shares/lot; BYD Company (01211) 100 shares/lot (recently cut down from 500); Hong Kong Exchanges and Clearing (00388) 100 shares/lot; Tracker Fund of Hong Kong (02800) 100 shares/lot; CSOP FTSE China A50 ETF (02822) 25 shares/lot.
What is an odd lot, and why can it cost more to trade?+
An odd lot is any share holding smaller than one full board lot. If Tencent trades in lots of 100 and you hold 150 shares, 50 of those are an odd lot. Odd lots usually trade off the main order book with wider spreads and lower liquidity, and if your broker charges a flat minimum commission (say, a $3 floor), that fee eats up a much bigger share of a small odd-lot trade. That is exactly what this calculator's commission-efficiency verdict is built to flag.
Why is HKEX changing board lot sizes in 2026?+
HKEX published a consultation paper in December 2025 proposing to collapse the current 44 different lot sizes down to eight standard options (1, 50, 100, 500, 1,000, 2,000, 5,000 or 10,000 shares) and lower the minimum lot value to roughly HK$1,000. New listings must adopt one of the eight sizes starting from July 2026; existing issuers, including HSBC, AIA and roughly 650 others, have a transition window to fall in line. BYD already moved first, cutting its lot size from 500 shares to 100. The practical effect: some of the lot sizes in this calculator will change, so always cross-check the current figure with your broker or HKEX before placing an order.
Can I buy less than one board lot of an HK stock from a US brokerage account?+
It depends on the broker. Platforms built for retail investors, like moomoo, generally support odd-lot buying and selling. Others, like some Tiger Brokers account types, only let you sell an odd lot you already hold and will not let you buy one. If your broker does not support odd-lot buying, you need the full board-lot amount up front, which is exactly the number this calculator shows you before you place the order.
Why did BYD's board lot size change?+
BYD reduced its board lot from 500 shares to 100 shares to lower the minimum cash outlay needed to buy one lot, ahead of HKEX's broader 2026 board lot reform that pushes issuers toward smaller, more standardised units. At BYD's prior 500-share lot and a share price in the HK$80s, one lot would have cost roughly HK$40,000+; at 100 shares, the entry cost dropped by 80%.
Does a smaller board lot mean a stock is a better buy?+
No. Board lot size only changes your minimum entry ticket, and it has nothing to do with the company's valuation, growth, or quality. The CSOP FTSE China A50 ETF has one of the smallest lot costs on this page mainly because its per-share price is low and its lot size is only 25 shares, while Tencent's lot costs more mainly because its share price is higher. Treating a small lot cost as a buy signal gets the causality backwards.
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This calculator provides estimates for reference only and is not financial advice. Board lot sizes and prices shown are illustrative reference data from mid-2026 and will drift as HKEX's board lot reform rolls out and as prices move. Always confirm the live lot size and quote with your broker or HKEX before placing an order. moomoo and TradingView are affiliate links.