Successful online trading is defined less by what you trade and more by how you trade

Most traders believe the performance of their portfolio is based on choosing the right stock. In reality, a successful trading portfolio is defined less by what you trade and more by how you trade, as data suggests.

A few years ago, the biggest advantage of online trading was access. Today, with more platforms, instruments and data available than ever before, access is no longer the edge – everyone has it. Globally, more than 320 million people now trade through online platforms, and around 75% of these trades are executed on smartphones or mobile apps.

With access democratised, the real differentiator has now shifted to decision-making, discipline, risk control and the ability to stay invested without reacting emotionally to every market change – often triggered by geopolitical uncertainty.

Traders who will succeed in 2026 and beyond will not be those chasing the next ‘big move’, but those treating trading as a long-term process rather than a series of short-term bets. Consistency will matter more than conviction, and process will matter more than prediction.

What a strong portfolio looks like

A strong online trading portfolio is not only defined by how well it performs, but by behaviour. It is diversified across sectors, regions and themes, aligned with the trader’s goals and timeline. Most importantly, it is structured to withstand volatility and removes emotional decision-making, which matters now more than ever, especially in a highly active global trading environment.

Research further indicates that globally, nearly half (49%) of online investors trade at least once a week, and more than a quarter trade daily. While this level of engagement may seem positive, it also increases the risk of overtrading – which is likely to result in emotional decision-making.

Traders should be able to explain why each investment exists and under what circumstances it would be reviewed – or exited. Many traders are unaware of how much behaviour influences results. Impulsive buying, selling shares out of panic and constantly switching strategies impacts how a portfolio performs over time.

Mistakes that continue to cost traders

In fact, one mistake remains common: confusing activity with progress. Many traders still overtrade, react emotionally to short-term market moves or chase returns after they’ve already matured. Others build portfolios that are unintentionally concentrated because the same high-profile names dominate headlines and social media platforms.

These mistakes are avoidable, but only with structure. Setting clear rules, reviewing portfolios regularly (not constantly) and making strategic decisions when markets are calm rather than when they are loud can materially improve outcomes.

In a year that is likely to continue to be shaped by ongoing geopolitical uncertainty and market volatility, simplicity and having a clear strategy with intentional diversification will be important.

Trends that are influencing trading portfolios

Against this backdrop, several key trends are beginning to shape how traders think about building resilient portfolios:

Technology

Trading platforms have become smarter, faster and data more accessible than ever, enabled by innovative technology. Younger investors (Gen Z and millennials) are embracing this innovation more, as they are open to AI-enabled investing tools – not necessarily to replace human potential, but to help with offering guidance. Successful traders will use this kind of technology to enhance decision-making and discipline, but it needs to be applied with caution.

Asset concentration

Global markets are largely influenced by a small number of stocks and dominant themes. While this creates opportunity, it also increases risk for traders with portfolios that are not diversified.

Evolving investor behaviour

As South Africa’s online trading market continues to grow, there is also increased recognition that volatility is normal. More traders understand that markets move in cycles. With more participants in the market, behavioural discipline becomes more important than ever. We can expect to see a shift away from chasing momentum, toward building portfolios designed to remain invested through uncertainty.

What separates successful traders

The difference between traders who succeed and those who struggle over time is rarely limited to intelligence or access to information. Successful traders don’t focus on being right all the time, but rather focus on being consistent, managing risks before thinking about reward and accepting losses as part of the process – while still sticking to a defined strategy.

Those who struggle often abandon their strategy at the first sign of volatility or chase the ‘next best deal’, instead of strengthening the portfolio they already have. This is why the discipline of keeping to a strategy is so important.

If there is one guiding principle for building a resilient portfolio in 2026, it is to build one that you can manage and stick to. Markets will continue to fluctuate, influenced by changing headlines, and a portfolio based on perfect timing or overtrading is unlikely to perform well.

Resilience doesn’t only mean avoiding risk; managing your portfolio properly is the key play.

Tinus Rautenbach

Head

Clarity by Investec

Image credit: Freepik/pvproductions