It is a well known behavioural fact that humans have a round number bias. We just like round numbers. During a visit to the gym recently keeping the RPM’s over 100 was a keen aim. If the RPM’s dropped under 100 something psychologically kicked in to give an extra push in order to hit the ‘big round number’.

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This phenomena turns up all over the place. Look at the London Marathon finishing times and how they cluster around the big round numbers of 3 hours, 3:30 hours, and 4 hours.

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Most of us are very familiar with pricing that keeps under a big round number. Most goods for about £3 will be priced as £2.99. Staying clear fo the ‘£3’ label, even by a penny, means more sales will be encouraged.
Humans love big round numbers as key reference points. You will have noticed this yourself when you say ‘I will close my position when my equity hits £10,000’ or ‘I will sell the stock when it reaches $100’. This means that traders need to be aware of this impact when trading.

The big round number effect

Whenever you are trading, this has a number of implications for placing orders.

For limit orders: Place buy or sell limit orders at, or near, big round numbers.
For a take profit : Place your TP just a few points BELOW a big round number
For a stop loss: Place your SL just a few points BELOW a big round number.

Also, keep a careful eye out for how big round numbers act as key support and resistance numbers. You will see how influential they are.


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Our products and commentary provides general advice that do not take into account your personal objectives, financial situation or needs. The content of this website must not be construed as personal advice.

Editors’ Picks

EUR/USD hovers around 1.1850 ahead of FOMC Minutes

EUR/USD hovers around 1.1850 ahead of FOMC Minutes

EUR/USD stays on the back foot around 1.1850 in the European session on Wednesday, pressured by renewed US Dollar demand. Traders now look forward to the Minutes of the Fed's January monetary policy meeting for fresh signals on future rate cuts. 

GBP/USD defends 1.3550 after UK inflation data

GBP/USD defends 1.3550 after UK inflation data

GBP/USD is holding above 1.3550 in Wednesday's European morning, little changed following the UK Consumer Price Index (CPI) data release. The UK inflation eased as expected in January, reaffirming bets for a March BoE interest rate cut, especially after Tuesday's weak employment report. 

USD/JPY is looking for direction around 153.00 with key US data in focus

USD/JPY is looking for direction around 153.00 with key US data in focus

USD/JPY reversal from 153.70 has been contained above 152.70 on Tuesday. Major currencies are trading within narrow ranges amid thin trading volumes. Investors await the release of the US GDP and PCE Inflation figures to make decisions.


Editors’ Picks

GBP/USD defends 1.3550 after UK inflation data

GBP/USD defends 1.3550 after UK inflation data

GBP/USD is holding above 1.3550 in Wednesday's European morning, little changed following the UK Consumer Price Index (CPI) data release. The UK inflation eased as expected in January, reaffirming bets for a March BoE interest rate cut, especially after Tuesday's weak employment report. 

EUR/USD hovers around 1.1850 ahead of FOMC Minutes

EUR/USD hovers around 1.1850 ahead of FOMC Minutes

EUR/USD stays on the back foot around 1.1850 in the European session on Wednesday, pressured by renewed US Dollar demand. Traders now look forward to the Minutes of the Fed's January monetary policy meeting for fresh signals on future rate cuts. 

Gold: Is the $5,000 level back in sight?

Gold: Is the $5,000 level back in sight?

Gold snaps a two-day downtrend, as recovery gathers traction toward $5,000 on Wednesday. The US Dollar recovers from the overnight sell-off as rebalancing trades resume ahead of Fed Minutes. The 38.2% Fib support holds on the daily chart for now. What does that mean for Gold?

Pi Network rally defies market pressure ahead of its first anniversary

Pi Network rally defies market pressure ahead of its first anniversary

Pi Network is trading above $0.1900 at press time on Wednesday, extending the weekly gains by nearly 8% so far. The steady recovery is supported by a short-term pause in mainnet migration, which reduces pressure on the PI token supply for Centralized Exchanges. The technical outlook focuses on the $0.1919 resistance as bullish momentum increases.

UK jobs market weakens, bolstering rate cut hopes

UK jobs market weakens, bolstering rate cut hopes

In the UK, the latest jobs report made for difficult reading. Nonetheless, this represents yet another reminder for the Bank of England that they need to act swiftly given the collapse in inflation expected over the coming months. 

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