US30
US30 Lot Size: What 0.01 Lot of the Dow Is Worth, and How to Size Every Trade
On most retail CFD platforms, 1.0 lot of US30 moves $1 for every point the Dow Jones Industrial Average moves. That means 0.10 lot is $0.10 per point and 0.01 lot is $0.01 per point. The right US30 lot size is the one where your stop distance in points, times that value, equals the money you decided to risk.
This Value guide gives you the value of every common US30 lot per move, the one line formula, ready lot size tables for $500 to $25,000 accounts, the 0.01 lot check for small accounts, and the decimal trap that makes people trade ten times too big. Every number uses the same preset as the free SIWAI US30 lot size calculator, so you can rerun any row with your own stop in seconds.
What one lot of US30 actually is
US30 is the name most MetaTrader brokers give to a CFD on the Dow Jones Industrial Average. The Dow is a price weighted index of 30 large US companies, created in 1896, so its level is driven by share prices rather than company size (see how a price weighted index works). A forex lot is 100,000 units of currency. An index CFD lot is not a number of shares at all: it is a contract size, a multiplier the broker applies to every point the index moves.
The common retail setting is a contract size of 1. Tickmill's US30 contract specifications, for example, list a contract size of 1, a minimum volume of 0.01 lot and a volume step of 0.01 lot. With a US dollar quote, contract size 1 means:
- 1.00 lot pays $1 per index point
- 0.10 lot pays $0.10 per index point
- 0.01 lot pays $0.01 per index point
Exchange traded Dow futures, such as CME Group's E-mini Dow, use their own fixed multipliers, so never reuse futures math on a CFD account. A clean breakout through resistance can travel hundreds of Dow points in a session, which is why US30 sizing has to start from the stop and not from a lot that feels small.
What 0.01, 0.10 and 1.0 lot of US30 are worth per move
The SIWAI preset values 1.0 lot of US30 at $1 per point, with a point equal to one full index point. The table scales in a straight line: lots times points equals dollars.
| Lot size | 1 point | 10 points | 50 points | 100 points | 500 points |
|---|---|---|---|---|---|
| 0.01 | $0.01 | $0.10 | $0.50 | $1 | $5 |
| 0.05 | $0.05 | $0.50 | $2.50 | $5 | $25 |
| 0.10 | $0.10 | $1 | $5 | $10 | $50 |
| 0.50 | $0.50 | $5 | $25 | $50 | $250 |
| 1.00 | $1 | $10 | $50 | $100 | $500 |
Read it as "lots times points." A 0.05 lot through a 100 point move is $5, and 1.0 lot through the same move is $100. Spread, commission and overnight financing come on top of these figures, so the real cost of a losing trade is always a little larger than the table.
Points, pips and decimals: the US30 trap
Most US30 sizing mistakes come from one word. In this guide a point is one full index point, from 42150 to 42151. Your platform may count something smaller. MetaTrader measures stops in platform points, and a platform point is the last decimal of the quote, so it depends on how many digits your broker shows. The quotes below only illustrate decimals.
| Platform digits | One platform point | A 50 index point stop is | Lot for $50 risk |
|---|---|---|---|
| 0 (quote like 42150) | 1.0 index point | 50 points | 1.00 |
| 1 (quote like 42150.5) | 0.1 index point | 500 points | 1.00 |
| 2 (quote like 42150.25) | 0.01 index point | 5,000 points | 1.00 |
All three rows describe the same 50 point stop and the same $50 risk on 1.0 lot. The danger is mixing them: typing "50" into a ticket that counts 0.1 point steps sets a stop of just 5 index points, and sizing that stop with the formula gives a lot ten times too large. Some traders also call one index point a "pip" on US30, which is fine as long as you mean the full point. Think in index points first, then convert.
The US30 lot size formula
Position sizing always starts from risk money, as Investopedia's position sizing guide explains. For US30 at $1 per point per 1.0 lot it reduces to one line:
Risk money = account equity × risk percent
Risk per 1.0 lot = stop distance in points × $1
Lot size = risk money ÷ risk per 1.0 lot
Worked example: $5,000 account, 1% risk, long US30 with an 80 point stop.
- Risk money: $5,000 × 1% = $50
- Risk per 1.0 lot: 80 points × $1 = $80
- Lot size: $50 ÷ $80 = 0.625, rounded down to 0.62 lot
- Check: 0.62 lot × 80 points = $49.60 at risk (0.99% of the account)
Second example with the calculator default: $1,000 account, 1% risk, 50 point stop. Risk money is $10, risk per 1.0 lot is $50, so the lot is $10 ÷ $50 = 0.20 lot.
Always round down to your broker's volume step. Rounding up quietly turns a 1% rule into a 1.1% rule, and that drift adds up over a losing streak. Place the stop where the chart says the idea is wrong, for example just under the last higher low before a breakout, then let the formula decide the lot. Never the other way around.
US30 lot size tables for $500 to $25,000 at 1% risk
Each cell is the formula above, rounded down to a 0.01 volume step. Stops are in full index points.
| Account | 1% risk | 25 point stop | 50 point stop | 100 point stop | 200 point stop |
|---|---|---|---|---|---|
| $500 | $5 | 0.20 | 0.10 | 0.05 | 0.02 |
| $1,000 | $10 | 0.40 | 0.20 | 0.10 | 0.05 |
| $2,500 | $25 | 1.00 | 0.50 | 0.25 | 0.12 |
| $5,000 | $50 | 2.00 | 1.00 | 0.50 | 0.25 |
| $10,000 | $100 | 4.00 | 2.00 | 1.00 | 0.50 |
| $25,000 | $250 | 10.00 | 5.00 | 2.50 | 1.25 |
Notice the pattern: double the stop and the lot halves, double the account and the lot doubles. Unlike gold, even a $500 account can size a 200 point Dow stop at 1%, because 0.01 lot only risks $0.01 per point. For smaller accounts and more instruments side by side, see How Many Lots Can I Trade With $100, $500 or $1,000?
Rerun any row with your exact stop on the US30 lots calculator, or use the position size calculator if you trade the Dow next to forex pairs on the same risk rule.
The 0.01 lot check: the widest stop a small account can afford
Because 0.01 lot of US30 pays $0.01 per point, the widest stop you can afford on the minimum lot is your risk money times 100, in index points.
| Account | 1% risk | Risk per point at 0.01 lot | Widest stop at 0.01 lot |
|---|---|---|---|
| $100 | $1 | $0.01 | 100 points |
| $250 | $2.50 | $0.01 | 250 points |
| $500 | $5 | $0.01 | 500 points |
| $1,000 | $10 | $0.01 | 1,000 points |
If the chart needs a wider stop than that, the lot cannot shrink any further. You have three honest choices: wait for a tighter structure, knowingly accept a larger risk percent, or skip the trade. Shrinking the stop just to fit the account usually means getting stopped out by normal Dow noise.
NAS100 and SPX500: same formula, different stops
The SIWAI presets for the NAS100 lot size calculator and the SPX500 lot size calculator also value 1.0 lot at $1 per point. The formula does not change. What changes is how many points a sensible stop needs, because each index sits at a different level and moves a different number of points. With the calculator default stops:
| Index CFD | SIWAI value of 1.0 lot | SIWAI default stop | 1% of $1,000 | Lot size |
|---|---|---|---|---|
| US30 (Dow) | $1 per point | 50 points | $10 | 0.20 |
| NAS100 (Nasdaq 100) | $1 per point | 50 points | $10 | 0.20 |
| SPX500 (S&P 500) | $1 per point | 20 points | $10 | 0.50 |
Same $10 of risk, three different lots. That is the point of sizing from the stop: the money at risk stays the same whichever index you trade. Our US30 vs NAS100 comparison explains why the two indices behave differently, and GER40 traders can use the GER40 lots calculator, which pays in euros per point.
0.5%, 1% or 2%: how risk percent changes US30 lot size
Same $10,000 account, same 100 point stop, three risk rules. Lot size moves in direct proportion to the percent.
| Risk per trade | Risk money | Lot size (100 point stop) | Loss after 5 losers in a row |
|---|---|---|---|
| 0.5% | $50 | 0.50 | $250 (2.5%) |
| 1% | $100 | 1.00 | $500 (5%) |
| 2% | $200 | 2.00 | $1,000 (10%) |
The last column uses fixed dollar risk on the starting balance to keep the math readable. Losing streaks happen to every strategy, and the Dow can gap through a stop at the open or around big data releases (our CPI day chart setups and why stocks drop after good earnings show why event days need extra care). A smaller percent buys you more attempts.
Lot size controls the loss. The payoff decides whether the trade is worth taking. Before you size, check that the distance to target is at least a multiple of the distance to stop with the risk reward calculator and our guide on how to calculate risk reward ratio.
Check your broker before the first live US30 order
A contract size of 1 is common, not universal. In MetaTrader, right click the symbol in Market Watch and open Specification. The MetaTrader 5 help lists the fields that matter:
- Contract size: the multiplier per 1.0 lot. If it says 10 instead of 1, every value in this guide is ten times larger per lot, so divide the lots in the tables by 10.
- Digits and tick size: how many decimals one platform point is. This decides which row of the decimals table applies to you.
- Tick value: money per tick on 1.0 lot. It confirms the math above in one number.
- Minimal volume and volume step: the smallest order and the increment. This decides how far you must round down.
Leverage does not change any of these numbers. It only changes the margin your broker holds. Margin is roughly lots × contract size × index level ÷ leverage. For retail clients in the EU, ESMA's CFD product intervention measures cap leverage at 20:1 for major indices, so margin is about 5% of the position value. Your dollar risk per point is fixed by lots and contract size, not by leverage.
If your account is in euros or pounds, the US30 point value is still paid in dollars and converted. Work out your risk money in your account currency, convert it to dollars at the current rate, then use the formula. The forex lot size guide shows the same conversion step for currency pairs.
Frequently Asked Questions
How much is 1 lot of US30?
On most CFD platforms with a contract size of 1, 1.0 lot of US30 pays $1 for every point the Dow moves. A 100 point move is $100 on 1.0 lot. Some brokers use a different contract size, so check Contract size in your platform Specification before trading.
How much is 0.01 lot of US30 worth?
At $1 per point per 1.0 lot, 0.01 lot of US30 is worth $0.01 per index point. A 100 point move changes your profit or loss by $1 and a 500 point move by $5, before spread, commission and financing.
How do I calculate lot size for US30?
Multiply account equity by your risk percent to get risk money. Divide it by your stop distance in index points times $1. Round down to your broker volume step. Example: $5,000 at 1% is $50, and $50 divided by an 80 point stop is 0.62 lot after rounding down.
What lot size should I use for US30 with a $1,000 account?
At 1% risk you have $10 to lose. With a 50 point stop that is 0.20 lot, with a 100 point stop it is 0.10 lot and with a 200 point stop it is 0.05 lot. Let the stop decide the lot, not the account size.
Why is my US30 stop ten times too small?
Your platform probably counts points in 0.1 or 0.01 steps. If the quote shows one decimal, 500 platform points equal 50 index points. Convert to full index points before you use the formula, or the lot will come out ten or a hundred times too large.
Does leverage change my US30 lot size?
No. Leverage changes the margin your broker holds, not the loss per point. Size from your stop and risk percent, then confirm you have enough free margin. ESMA caps retail leverage on major indices at 20:1 in the EU.
Risk Disclaimer: Trading stocks, options, futures, forex, commodities, and cryptocurrencies involves substantial risk of loss and is not suitable for every investor. Past performance does not guarantee future results. This article is for educational purposes only and does not constitute financial advice. You should carefully consider your financial situation and risk tolerance before trading. Never trade with money you cannot afford to lose. Index CFD contract sizes, tick values and minimum volumes vary by broker. Confirm the Specification on your platform before sizing a live order.