More prop traders are talking about scaling horizontally instead of vertically. But what does thatactually mean, and why could it make such a big difference to your trading results?
If you've been following discussions about prop trading lately, you've probably heard traders talking about the importance of scaling horizontally, not vertically. It's becoming an increasingly popular piece of advice, particularly among traders managing multiple funded accounts.
At first, it sounds like another complicated trading concept, but the idea is surprisingly simple. Instead of increasing your position size in one account to make more money, you spread that same trading exposure across multiple accounts.
The potential profits are the same, and so are the combined losses. But there's one very important difference: spreading your trades across multiple accounts can dramatically reduce your chances of breaching any single account on one trade.
And in prop trading, where exceeding your drawdown limit can mean losing your funded account entirely, that can make all the difference.
Horizontal vs. Vertical Scaling
Vertical scaling means increasing your position size in one account to generate larger profits. Horizontal scaling means keeping your position size smaller but replicating your trades across multiple accounts.
Let's say you're trading a $50,000 futures prop account with a $2,000 maximum drawdown. You've developed a strategy that works, and now you want to increase your earnings.
You could trade more contracts in that one account, or you could add more funded accounts and copy the same strategy across all of them.
Both approaches can produce the same combined profit or loss, but the impact on your drawdown limits can be dramatically different.
The $1,000 Loss That Explains Everything
Imagine you're trading a $50,000 funded account with a $2,000 maximum drawdown.
You've been risking $200 per trade, but now you want to make more money, so you increase your position size and start risking $1,000.
You take a trade, it hits your stop, and you lose $1,000.
One losing trade just wiped out 50% of your entire drawdown allowance.
You now have just $1,000 of room left before breaching the account. Another loss of the same size could end your funded account, even if your strategy is profitable over a larger number of trades.
And recovering becomes much harder. You need to earn back $1,000 just to return to where you started, but now you're trading with half your original drawdown cushion. That pressure can lead to oversized positions, revenge trading and mistakes you wouldn't normally make.
Now consider scaling horizontally instead.
Rather than risking $1,000 in one account, you spread that exposure across five accounts, risking $200 on each.
If the trade loses, you're still down $1,000 overall, but each account has lost only 10% of its $2,000 drawdown allowance. All five still have $1,800 of their original cushion remaining.
The total loss is identical, but horizontally scaled accounts have much more room to survive additional losing trades.
Why This Matters So Much in Prop Trading
Here's something newer prop traders often overlook: a $50,000 funded account with a $2,000 maximum drawdown doesn't actually give you $50,000 to lose. Your real loss allowance is just $2,000.
If you're risking $1,000 per trade, you're putting half that allowance on the line every time you enter the market. Even a strategy with a 70% win rate can run into trouble if two losses occur back-to-back.
Horizontal scaling allows you to increase your overall profit potential without increasing the percentage of drawdown at risk in each account.
There's also a psychological benefit. Losing $1,000 in one account with a $2,000 drawdown can feel devastating. Losing $200 in each of five accounts may be easier to manage because none is close to breaching.
This is particularly important when trading leveraged futures such as Nasdaq, S&P 500 and gold, where oversized positions can quickly consume an account's available drawdown.
How Much Can You Make Scaling Horizontally?
Suppose your strategy targets $300 per day on one funded account. Instead of increasing your position size to chase bigger profits, you replicate the strategy across multiple accounts.
Hypothetical gross targets before commissions, fees and payout restrictions. Losses also multiply.
With ten accounts, you're aiming for $3,000 in combined daily profits, but you're only targeting $300 per account.
This is the attraction of horizontal scaling. You can grow your combined profit potential while keeping the same position size and trading strategy on each account.
Of course, ten accounts don't make your strategy ten times better. They multiply both your winning and losing trades.
How Do Traders Manage Multiple Accounts?
Most traders who scale horizontally use a trade copier, which automatically replicates trades from one account across several others.
Instead of manually entering the same trade ten times, you execute it once on your main account, and the copier sends corresponding orders to your other accounts.
Some futures prop firms allow traders to manage multiple accounts simultaneously. Apex, for example, offers multi-account trading, while other firms have their own limits and restrictions.
Before using a copier, check your firm's rules on trade copying, maximum accounts and permitted trading behavior. Copiers can also experience execution differences or missed orders, so individual account risk controls remain important.
Three Things to Watch Before Scaling Horizontally
If you copy the same Nasdaq trade across ten accounts and it loses, all ten lose money. Your total exposure is unchanged, and a losing streak can still breach multiple accounts.
Some firms use trailing drawdowns rather than static limits. Your remaining cushion may be much smaller than the original advertised drawdown, particularly after previous losses or new profit highs.
Evaluation fees, activation fees, subscriptions and resets can add up. You also need to consider payout restrictions and account limits.
How to Start Scaling Horizontally
You don't need ten or twenty accounts to take advantage of this approach.
Start with one account and find a position size that allows your strategy to withstand normal losing streaks without putting a large percentage of your drawdown at risk.
Once you're trading consistently, consider adding a second or third account while keeping your position size per account unchanged. You can gradually expand from there.
Just remember to monitor your combined exposure. Risking $200 across ten accounts still means you're risking $2,000 on a single trade.
The idea isn't to take bigger risks. It's to avoid putting so much risk into one account that a normal losing streak can knock you out of the game.
In prop trading, sometimes the smartest way to trade bigger is to keep trading small, just across more accounts.