US30 is a common broker name for a CFD on the Dow Jones Industrial Average, an index of 30 large US companies weighted by share price. How the weighting works, what moves the price and how the CFD is traded on MT5.
US30 is the name many brokers give to a CFD on the Dow Jones Industrial Average. You may also see it as DJ30, WS30 or Dow30.
What US30 is
US30 is a CFD whose price follows the Dow Jones Industrial Average, often called the Dow or the DJIA. The 30 is the number of companies in the index.
When you trade US30 you do not buy shares in any of those companies. You enter an agreement with your broker to settle the change in price between when you open the position and when you close it. If you buy and the price rises, you gain the difference. If it falls, you lose it. A sell, or short, position works the other way round.
As a CFD, US30 works like this:
- You can buy or sell, so you can take a position on a rise or a fall, and you can lose money either way.
- It is leveraged. You put up a fraction of the position's value as margin, and gains and losses are calculated on the full position.
- Nothing is delivered. The position is settled in cash as a profit or loss.
The index behind US30
The Dow Jones Industrial Average is one of the oldest US stock indices. It was first calculated on 26 May 1896 with 12 companies. It grew to 20 in 1916 and to 30 in 1928, and it has had 30 members since. S&P Dow Jones Indices marked its 130th year on 26 May 2026.
The 30 members are large, long-established US companies from technology, healthcare, financials, industrials, energy and consumer sectors. A committee at S&P Dow Jones Indices reviews membership from time to time, so the list changes as companies are added or removed. The current list is on the S&P Dow Jones Indices website.
Why the Dow is weighted by share price
Most indices give the largest companies the most weight. The Dow gives the most weight to the companies with the highest share price.
The index level is the sum of the 30 share prices divided by a number called the Dow divisor. In the words of S&P Dow Jones Indices, "price changes in the highest-priced stocks have greater impact on the index level than price changes in the lower-priced stocks." The size of the company does not enter the calculation.
A simplified example, with a divisor of 0.165:
Company | Share price | Company value | Effect of a 1 per cent rise in its share price |
|---|---|---|---|
Company A | $500 | Medium | $5 ÷ 0.165 = about 30 index points |
Company B | $50 | Ten times larger than A | $0.50 ÷ 0.165 = about 3 index points |
Company B is the bigger business. Measured in index points, the same percentage move in Company A moves the Dow ten times as much, because its share price is ten times higher.
The divisor is far smaller than one, which is why the index level is much larger than the sum of 30 share prices. It has been a little above 0.16 in recent years. At 0.165, a $1 move in any one member's share price moves the Dow by about 6 points (1 ÷ 0.165 = 6.06). S&P Dow Jones Indices adjusts the divisor for stock splits, spin-offs and changes of membership, so that those events do not by themselves change the index level.
How this differs from the S&P 500 and Nasdaq-100
The S&P 500 and the Nasdaq-100 are weighted by market value, so the largest companies carry the most influence. A very large company with a modest share price can dominate those indices and still have a small effect on the Dow. That is why the Dow can move differently from the S&P 500 or the Nasdaq-100 on the same day.
The cash index, futures and the CFD
Three related things share the name, and the difference explains why your US30 price may not match the Dow quoted in the news.
The cash index is the official Dow level, calculated from the 30 share prices during US stock market hours.
Dow futures are exchange contracts on the future value of the index. The E-mini Dow (ticker YM) trades on CME at $5 per index point, and the Micro E-mini Dow (MYM) at $0.50 per point, a tenth of the size. A 200-point move is worth $1,000 on one E-mini contract and $100 on one Micro. Both settle in cash on a quarterly cycle of March, June, September and December, and trade for most of the day from Sunday to Friday.
The US30 CFD is the instrument you trade with your broker. Depending on the broker, it is priced from the cash index or from a futures contract.
A CFD price can sit slightly away from the cash index for these reasons:
- the spread, the gap between the buy and sell price
- the futures basis, if the CFD follows futures, which can trade above or below the cash index
- dividend adjustments when index members go ex-dividend
Positions held past the daily rollover pay or earn swap, an overnight financing amount. It is booked to your account and does not change the quoted price.
What moves US30
US30 moves on news about large US companies and on US economic data.
Results from members. When a member reports quarterly results, a large move in its shares feeds into the index, and more so if its share price is high.
Federal Reserve policy. Rate decisions, the statement and the press conference move US shares broadly. Expectations of higher rates for longer tend to weigh on shares. Signals of rate cuts often support them.
US economic data. Inflation figures (CPI and PCE), the monthly jobs report, GDP and consumer surveys all change expectations for growth and interest rates. Our guide to the jobs report covers one of the biggest of these.
Risk appetite. Many members are large multinationals, so the Dow reacts to worries about global growth, trade disputes and sudden falls in other markets.
Moves between sectors. With only 30 members, money moving into or out of one sector, such as financials or industrials, can move US30 more than it would move a broader index.
US30 is usually most active around the New York open and in the minutes after major US data and Federal Reserve announcements. Spreads can widen and prices can jump in those minutes.
How US30 is traded on MT5
In MetaTrader 5, right-click the symbol in Market Watch and open Specification. It shows the contract size, the value of one point, the minimum trade size, the margin and the trading hours.
US30 is quoted in index points. Your profit or loss on a one-point move is the point value multiplied by the number of lots.
Leverage lets you open a position larger than your margin. As an illustration only, if a $40,000 position needed $400 of margin, a move against you worth $400 would use all of it. That is a price move of one point in every hundred. Trading smaller than the maximum the account allows leaves room for normal price swings.
Index CFDs usually follow the futures schedule, trading for most of the day with a short daily break. Trading is heaviest during the US session. The hours for each symbol are in its specification.
You pay the spread when you trade, and positions held past the daily rollover pay or earn swap. Those costs matter most for short-term trades and for positions held for weeks.
MT5 offers market and pending orders, and stop-loss and take-profit levels. A simple routine:
- Open the US30 specification and note the contract size, margin and usual spread.
- Decide the direction, and the price at which your idea is wrong. That is your stop.
- Size the position so that being stopped out costs a small, set share of your account.
- Set the stop-loss and take-profit when you open the trade.
- Record the trade and review it later.
Our guide to forex leverage explains how margin and leverage work together, and the indices page lists the other indices we offer.
The risks of trading US30
- Leverage. A small move against you can use up a large part of your margin, and you can lose all of the money you deposit.
- Gaps. Around results, Federal Reserve decisions and major data, US30 can move sharply, and it can open far from the previous close after a weekend or a break. A gap can jump past your stop, so the loss can be larger than you planned.
- Concentration. With 30 members weighted by share price, bad news for one high-priced company can move the whole index.
- Holding costs. Swap charges build up on positions held for a long time.
- Your own decisions. Fast markets make it tempting to trade too often or to try to win back a loss at once. A written plan with a set risk per trade helps.
Trading US30 with NAMH Global
You can trade index CFDs, including the Dow, on MetaTrader 5 with NAMH Global.
CFDs use leverage. You can lose money quickly, and you can lose all of the money you deposit. Only trade with money you can afford to lose.
US30 questions
What does US30 mean?
US30 is a broker name for a CFD on the Dow Jones Industrial Average, an index of 30 large US companies. The 30 is the number of companies. The CFD lets you trade the index's price up or down without buying the shares.
Is US30 the same as the Dow Jones?
Not exactly. The Dow Jones Industrial Average is the index; US30 is a CFD whose price follows it, priced either from the cash index or from Dow futures depending on the broker. Its quote can differ slightly from the index because of the spread, the futures basis and dividend adjustments, especially outside US market hours.
Why is the Dow price-weighted?
Because it has been calculated that way since 1896: the index is the sum of the 30 share prices divided by a number called the Dow divisor. A company with a higher share price therefore moves the index more than a company with a lower share price, whatever their total market value.
What moves the US30 price?
Results from its member companies, Federal Reserve decisions, US inflation and jobs data, and general risk appetite move it most. Because the index is price-weighted, a large move in one high-priced member can move the whole index on its own.
Can I trade US30 on MT5?
Yes, where the broker lists a Dow CFD it appears in MT5 Market Watch, and you can buy or sell it and set stop-loss and take-profit orders. Right-click the symbol and open Specification to see its contract size, point value, margin and hours.
Is trading US30 risky?
Yes. US30 is a leveraged CFD, so losses grow as fast as gains, and you can lose all of the money you deposit. The index can move quickly around US data releases and the New York open, and prices can gap past a stop.
Sources
- Dow Jones Averages methodology, S&P Dow Jones Indices
- Dow Jones Industrial Average overview, S&P Dow Jones Indices
- Dow Jones Industrial Average celebrates 130 years, S&P Dow Jones Indices
- E-mini Dow (YM) contract specifications, CME Group
- Micro E-mini Dow (MYM) contract specifications, CME Group
- Dow Jones Industrial Average (DJIA), FRED, Federal Reserve Bank of St. Louis
NAMH Global Ltd is a company registered in Saint Lucia (No. 2024-00372). It is not licensed by a securities regulator. This article is general information, not investment advice or a recommendation.