The Hidden Forces Behind Markets: How Institutional Money Actually Moves Markets

While retail traders make up part of the markets, the biggest moves are often driven by institutions. Pension funds, hedge funds, asset managers, insurers and investment funds control billions of dollars and can hold positions that are larger than the daily trading volume of some companies.

This week, we’re looking at how institutional money actually moves prices, why trends often last much longer than expected, and why the chart patterns retail traders focus on can sometimes become completely irrelevant.

Why can’t institutions just buy everything they want in one day?

Imagine you decide to buy 100 shares of a company. You place the order, it gets filled, and you’re done.

Now imagine you’re managing a fund and want to buy R2 billion worth of shares in Ninety One. That’s a completely different problem. There simply may not be enough sellers available at today’s price to fill that order.

If the institution tries to buy everything immediately, they would push the price sharply higher and end up paying more and more for every share they purchase. Instead, large funds usually build positions gradually.

They might buy every day, every week, or even every month.

The same applies when they want to sell. A large institution exiting a position cannot simply dump billions of rands worth of shares into the market without crushing the price. Instead, they slowly distribute their holdings over time.

This creates something many retail traders overlook. The institution often doesn’t care whether a stock is sitting at support, resistance, a moving average, or a chart pattern that everyone is watching. Their objective is far simpler: acquire shares or reduce a position.

If the investment committee has approved a purchase, the fund manager needs to get the trade done. That flow of buying or selling can dominate price action for weeks or even months, creating trends that seem far more powerful than the underlying news flow would suggest.

How does institutional buying actually push prices higher?

Let’s say an institution has decided that a company is fundamentally attractive. Perhaps earnings are improving, management is executing well, or the valuation is compelling.

The decision has already been made. Now the fund needs to acquire the shares.

While institutions use sophisticated execution strategies and limit orders, they still need willing sellers on the other side of the trade. Over time, that often means consistently buying available stock as it comes to market.

Think of it like a supermarket shelf. Every time new stock appears, somebody immediately buys it. Eventually the shelf starts looking empty.

The same thing happens in markets. As institutions continue accumulating shares, supply becomes scarcer and prices begin moving higher.

Importantly, this can happen even when the news flow is negative. This is why you’ll sometimes hear bearish headlines while the share price continues climbing. The narrative says one thing. The market says another.

That’s often a clue that large buyers are operating behind the scenes. Price is ultimately determined by what market participants do with their money, not by what commentators say on television.

Why do trends often last far longer than traders expect?

Many retail traders assume every rally should quickly reverse and every sell-off should quickly bounce. But institutions don’t operate on a daily timeframe.

If a fund needs three months to build a position, that buying pressure doesn’t disappear after a few days. If multiple institutions are buying simultaneously, the effect becomes even stronger.

The same is true on the downside. When several large funds decide to reduce exposure, the selling can continue for weeks or even months. This is one reason why strong trends often persist far longer than traders expect.

It’s not necessarily because investors are becoming more bullish or bearish every day. It’s because large players are still executing the same underlying decision. They’re still buying. Or they’re still selling.

For retail traders, this creates an important lesson. Sometimes the most profitable trade is not predicting the next move. It’s identifying what the big money is already doing and positioning yourself alongside it.