Trading Education

How to trade NAS100 without getting chopped up at the open

How to trade NAS100 when forex habits stop working: cash-open volatility, session-break gaps, index CFD financing, and stops sized for the instrument.

In this guide
  1. What are you trading when you buy NAS100?
  2. Why does NAS100 move hardest at the New York open?
  3. How is an index CFD different from a forex pair?
  4. What happens during the session break?
  5. How do you size a NAS100 trade so the open can’t end it?
  6. Do your indicators read NAS100 the same way?
  7. Frequently asked questions

Your routine works on EURUSD. Then 09:30 in New York arrives, NAS100 covers the width of your usual stop in about forty seconds, and you are flat before the candle that triggered you has even finished printing.

Nothing was wrong with the setup. The instrument was wrong for the settings. Learning how to trade NAS100 starts with that gap between your habits and the contract. By the end of this you will know which hours of the NAS100 day are worth your attention, why the same stop distance means something completely different here, and what to check before you trust anything the first fifteen minutes puts on your chart.

Key Findings

  • NAS100 is concentrated, not diversified: the contract tracks an index dominated by a small group of mega-cap technology companies, so one earnings report can move the whole quote.
  • The day has two halves: thin drift outside the US cash session, then real two-sided volume from 09:30 New York time.
  • Gaps are structural: the daily broker session break means NAS100 jumps where a forex major would have traded through.
  • Points are not pips: size the position from what one index point is worth on your contract, or your risk percentage is decorative.

What are you trading when you buy NAS100?

A price, not a portfolio. NAS100 (also quoted as US100 or USTEC) is a broker contract that tracks the Nasdaq-100 index, and the index holds 100 of the largest non-financial companies listed on Nasdaq, per Nasdaq’s published index methodology. You own nothing. You are long or short a number.

The number matters more than most new index traders expect, because the index is weighted, not equal. A handful of mega-cap technology names carry an outsized share of it. Nasdaq itself ran a special rebalance effective 24 July 2023 specifically to reduce that concentration, which tells you how lopsided the weighting had become.

Tracks100 non-financial Nasdaq listings
Quoted inindex points, not pips
Moves onUS earnings, rates, tech sentiment

So when you trade NAS100 you are taking a view on US technology risk appetite. Treating it as a neutral “index” is the first mistake.

Where this costs youTraders hedge a losing tech-heavy position by adding NAS100 in the other direction, then discover the two positions were tracking almost the same thing all along.

Why does NAS100 move hardest at the New York open?

Because that’s when the shares behind it start trading. The US cash session opens at 09:30 New York time, and everything the contract did overnight was an estimate of where those shares would reopen. At the bell, the estimate meets reality. One structured way to trade that moment is an opening range breakout, which lets the first minutes build a box before you pick a side.

Where the NAS100 volume sits in a dayOne trading day, New York timeOvernight driftLondon hoursUS cash sessionBreak09:30 bellParticipation, schematic

Read the lower line, not the boxes: participation is flat for most of the clock and then steps up at one moment. A level that held all night held against almost nobody.

WindowWhat it usually looks likeWhat it does to a stop
OvernightNarrow drift, wider spreadTight stops survive on thin air
London hoursSome direction, still lightLevels start to get tested properly
09:30 to 10:30 NYFastest range of the dayOvernight stop distances get taken out
Afternoon NYTrend or grind into the closeThe most workable session for most retail traders
Overnight
What it usually looks like
Narrow drift, wider spread
What it does to a stop
Tight stops survive on thin air
London hours
What it usually looks like
Some direction, still light
What it does to a stop
Levels start to get tested properly
09:30 to 10:30 NY
What it usually looks like
Fastest range of the day
What it does to a stop
Overnight stop distances get taken out
Afternoon NY
What it usually looks like
Trend or grind into the close
What it does to a stop
The most workable session for most retail traders

If you only have an hour a day, the honest answer is that the hour after the bell is where the instrument is liquid. That’s also the hour that punishes forex-sized stops. Both things are true at once, which is why the sizing section below matters more than any entry rule. Traders who work around a day job often find the late New York afternoon a better fit, for the same reason discussed in the piece on choosing sessions that suit your schedule.

How is an index CFD different from a forex pair?

In four ways that all show up in your account rather than on your chart.

NAS100 (index CFD)Major forex pair
Quote unitIndex points, contract value set by brokerPips, standardised lot sizes
Trading clockSession-based, daily maintenance breakContinuous through the week
Overnight costFinancing, plus adjustments around index dividendsSwap based on the rate differential
Main driversUS earnings, rate expectations, tech sentimentCentral banks, growth data, rate spreads
Quote unit
NAS100 (index CFD)
Index points, contract value set by broker
Major forex pair
Pips, standardised lot sizes
Trading clock
NAS100 (index CFD)
Session-based, daily maintenance break
Major forex pair
Continuous through the week
Overnight cost
NAS100 (index CFD)
Financing, plus adjustments around index dividends
Major forex pair
Swap based on the rate differential
Main drivers
NAS100 (index CFD)
US earnings, rate expectations, tech sentiment
Major forex pair
Central banks, growth data, rate spreads

The line that catches people is the third one. Hold a cash index CFD for several weeks and the financing quietly works against a thin edge, in the same way carry does on a pair, except most traders never check what the number is. Look it up on your own contract before you build a swing strategy on it.

What happens during the session break?

Price keeps existing. Your chart doesn’t.

A break in the quote versus a continuous quoteNAS100: contract closes, then reopens elsewhereclosedgap: no fills in hereForex major: the same news arrives tick by tickno hole in the series

The red dotted segment is the part that matters: no trade happened at any price along it, so a stop sitting inside that range gets filled at the reopen, not at your level. That’s slippage by design rather than by bad luck, and it behaves much like the weekend behaviour covered in the guide to trading gaps.

If you carry NAS100 through the break, assume your stop is a request and not a guarantee, and size so that a jump past it is survivable.

How do you size a NAS100 trade so the open can’t end it?

Start from money, never from points. One index point on a NAS100 contract is worth whatever your broker’s contract specifies, and that value has no relationship to a pip on a major pair. Find the number, then let arithmetic do the rest: fixed risk in account currency, divided by stop distance in points, gives position size. The position sizing walkthrough works the same way here.

The second adjustment is the stop itself. An overnight stop distance is calibrated to overnight ranges, and the bell does not respect it. Measure your stop against recent session volatility instead, which is exactly what a volatility measure like ATR-based stop placement is for.

Quick testTake your normal forex stop distance, convert it to money on your NAS100 contract, and compare it to your usual per-trade risk. If the two numbers are not close, your position size is wrong before you have even entered.

Do your indicators read NAS100 the same way?

The maths is identical. The input isn’t. Gaps enter an average as a genuine move, spreads outside cash hours distort volatility readings, and the first minutes after the bell can produce and then erase a signal faster than you can act on it.

What to do with a signal from the first minutesSignal fired near the bellstill there at closegone at closeSize it from the sessionrange and take itIt was never a signal,it was a spikeOne completed candle answers the question.A tool that redraws never lets you ask it.

That last line is the whole argument for confirming on finished candles on this instrument. A marker that can still move while the bar is open gives you no way to separate a real break from an opening spike, because the chart you review afterwards will show the tidy version either way.

RelicusRoad Pro settles its levels and signals on completed bars, which is the behaviour you want when the fastest thirty minutes of the day are also the ones you are judging. It will not tell you whether tech risk appetite is about to turn, and no indicator will. What it removes is the version of the problem where the level you sized against quietly moves during the one hour it was supposed to hold. If you want to test that claim on your own charts rather than take it on trust, the method is in the piece on how repainting indicators fake backtests.

Frequently asked questions

What is NAS100 in trading?

NAS100 is a broker’s contract on the Nasdaq-100 index, also quoted as US100 or USTEC depending on the platform. You are not buying shares and you do not own any part of the index. You are trading a price that tracks the index, quoted in index points, usually as a margined CFD. The underlying index holds 100 of the largest non-financial companies listed on Nasdaq, per Nasdaq’s published index methodology.

What is the best time to trade NAS100?

The US cash session, which opens at 09:30 New York time, carries the real volume and the tightest spreads. Most traders who do well on this instrument work either the first hour after that open or the afternoon trend that follows it. The overnight hours drift on thin participation, which produces levels that look clean on the chart and then fail the moment New York arrives.

Why does NAS100 gap when EURUSD does not?

Two reasons. The index tracks stocks that price in a fixed cash session, and most brokers close the NAS100 contract for a daily maintenance break. News that lands while the contract is closed gets priced into the first available quote, which prints as a gap. A forex major quotes continuously through the trading week, so the same news gets absorbed tick by tick instead.

How much should I risk per NAS100 trade?

The same percentage of your account you would risk anywhere else, but sized from the contract value, not from the point count. A stop that is 60 points wide on NAS100 and 60 pips wide on a major pair can be completely different amounts of money. Work out what one index point is worth on your broker’s contract, divide your fixed risk by the stop distance, and let the position size come out of that arithmetic.

Do indicators work the same on NAS100 as on forex?

The calculations are identical, but the input is not. Index CFDs gap across the session break, spreads widen sharply outside cash hours, and volatility is concentrated in a few hours instead of spread across the day. Averaging and volatility tools read those gaps as real moves. The practical fix is to judge signals on completed candles inside the liquid session rather than on the first prints after a break.


Trading the bell and want the level you sized against to still be there when the candle closes? RelicusRoad Pro fixes its marks on finished bars, so what you measured is what you trade.

Written for RelicusRoad by RelicusDigital.com.

Share:
Sessions & Timing

Keep going on this topic

Start with the main guide

Market Sessions Trading: How to Time the 'London-NY Overlap'

Liquidity is not constant. Learn to trade the high-volume 'Kill Zones' (London Open, New York Open) using RelicusRoad Pro's session indicators.

Tools to try

Single RelicusRoad indicators for MT4 and MT5, each one standalone.

All tools