What to know before sizing US30
US30 is a broker's CFD on the Dow Jones Industrial Average, an index of 30 large US companies. The symbol varies (US30, DJ30, Wall Street 30), and so does the contract. The most common convention is one lot = $1 per index point, but some brokers pay $10 per point per lot, or let one lot be a fraction of that. The same trade can therefore need 1 lot or 0.1 lot depending on the broker, which is why the contract field below is editable.
The Dow is price-weighted: a one-dollar move in a high-priced stock moves the index more than the same percentage move in a cheap one. Stops are in points, and a 100 point stop is only about 0.25% of the index at 40,000. Intraday ranges are commonly several hundred points, and US data and the Fed move it, so measure the stop in points on your chart. For comparison, the exchange-traded E-mini Dow future pays $5 per point per contract.
Watch for
- Contract size is the whole story here. Read your broker's specification for the dollar value of one point on one lot before using any lot size from a guide.
- CFD prices follow the futures outside the cash session at many brokers, with a possible adjustment at contract roll. Make sure your chart and your broker use the same price series.
- Gap risk is real at the US open and after news. Your stop can fill beyond the stop price, so size for a loss somewhat larger than planned if you hold through events.
US30 contract specifications (example)
| Instrument | Dow Jones Industrial Average (CFD) (US30) |
|---|---|
| Contract size (example) | 1 USD per index point per lot (example: some brokers use $10 or fractions) |
| Value of 1 point per 1 lot | $1.00 at the example price |
| Minimum size and step (example) | 0.1 lot at many brokers; some allow 0.01 |
| Example price used | 40,000 |
| Currency handling | Quote currency is USD, so no conversion is needed for a USD account. |
Example specification. Brokers differ: confirm the contract size, minimum size and step in your platform's contract specification before you size a real trade.
Worked examples for US30
Every number below is computed with the same formulas as the calculator, at the example prices shown, for a USD account.
Value of one point at different sizes
At the example price of 40,000, the money value of one point on US30 for a USD account:
Sizing a trade on US30 from your risk
Account $10,000, risk 1% ($100), stop 100 points. Each point is worth $1.00 per lot, so the exact size is 100 ÷ (100 × $1.00) = 1 lot. Rounded down to a tradable size that is 1.00, and the real risk is $100.
The same trade at $1 and at $10 per point
Same trade, two broker conventions: $10,000, 1% risk ($100), a 100 point stop. If a lot pays $1 per point the size is 1.00 lot. If it pays $10 per point the size is 0.10 lot. The dollar risk is the same, and so is the trade. The lot number is not comparable between brokers.
The math behind the numbers
size = (balance × risk %) ÷ (stop in points × value of 1 point per lot)
round down to a multiple of 0.1
position value = size × contract × price (converted to USD)Same formulas as the pip value and position size calculators (US30 numbers above are examples at the price shown). Rounding down keeps real risk at or below your limit.
To run your own numbers for another currency or contract, use the lot size calculator, the pip value calculator or the position size calculator. How much to risk per trade is a separate question, covered in how much to risk per trade, and the step-by-step is in how to calculate position size.
US30 questions
How much is one point on US30 per lot?
It depends on the broker. A common convention is $1 per point per lot, but $10 per point exists too. This page uses $1 as its example and lets you change the contract. Always confirm in your broker's contract specification.
What is the difference between US30, DJ30 and Wall Street 30?
They are broker names for the same index, the Dow Jones Industrial Average. The contract size and trading hours can differ between brokers even when the index is the same.
Why does my US30 position size look so different from a guide?
Lot size depends on the dollar value per point. A trade sized as 1 lot at $1 per point is 0.1 lot at $10 per point. Compare the dollar risk, not the lot number.
How much is one point worth on US30?
For a USD account, one point on 1 lot is about $1.00 at the example price of 40,000, and $0.1000 on 0.1 lot. Brokers differ, so confirm the contract size before you rely on it.
What size should I trade on US30 with $10,000?
It depends on your risk and stop, not on the account alone. With 1% risk and a 100 point stop the example size is 1.00 lot, which risks $100. Change the stop and the size changes with it. This is arithmetic, not advice.
Know what each point is worth, then place the stop.
Once you know what a point on US30 is worth, the stop distance sets your risk. These indicators help you find where the stop belongs.
Last updated November 2026. For education only. Not financial advice. Position sizing limits the loss you plan, but stops can slip and losses can exceed the planned amount. Results depend on your inputs and cannot predict future performance.