IG Group, one of the world's largest online trading platforms, saw its shares sink sharply after the company slashed its 2026 revenue growth forecast. The firm blamed muted market volatility for a drop in client activity and said its over-the-counter (OTC) revenue retention had slipped to about 70%.
The news sent IG's stock down more than 27% on the day, according to Reuters, far outpacing declines at rivals. Plus500 fell about 5.3% and CMC Markets dropped 9.1%. The outsized move reflects that IG's problems are not just about a quiet market—there's also a company-specific issue weighing on its earnings power.
Why quiet markets hurt trading platforms
Online trading platforms like IG make most of their money from fees and spreads on client trades. When markets are calm, price swings are smaller, and retail traders tend to trade less. That directly reduces the volume of trades and, in turn, the revenue the platform collects.
This is an industry-wide dynamic. Rivals Plus500 and CMC Markets also face the same headwind when volatility dries up. But IG's guidance cut suggests it is being hit harder than its peers, partly because of its own strategic choices.
The retention problem
IG also flagged a company-specific issue. In the second half of 2025, it adjusted its hedging and “market-making optimization” approach, aiming to keep more trading income in-house by lowering hedging costs. But the result has been a decline in OTC revenue retention—the share of each dollar of client trading flow that IG keeps after costs like hedging and pricing.
According to Reuters, IG now says OTC revenue retention has fallen to about 70%, versus an average near 80% since those changes began. That means for the same level of client trading, IG is keeping a smaller slice of the revenue.
Think of it this way: if a platform generates $100 of gross trading revenue from client activity, an 80% retention rate would leave $80 after hedging and other offsets. At 70%, that drops to $70—a 12.5% decline in revenue from the same activity level.
What this means for IG's numbers
The combination of lower activity and weaker retention is flowing straight into guidance. IG now expects 2026 group revenue growth in the mid-single digits, down from its previous 10–15% view. The company also said third-quarter revenue should be about £240 million, roughly 14% lower than the prior year.
That's a significant downgrade for a company that had been guiding investors to expect double-digit growth. The market's reaction—a 27% drop—shows how seriously investors are taking the revision.
Why investors punished IG more than peers
Part of the reason IG's stock fell so much more than its rivals is that the retention issue is specific to IG. While all trading platforms suffer when volatility is low, IG's own operational changes have made its revenue more sensitive to that environment.
Also, trading platforms carry a lot of fixed costs—technology, compliance, staff, marketing—that don't shrink quickly when revenue dips. So a smaller revenue take can squeeze profits disproportionately. That's why a 14% revenue decline could translate into an even larger profit drop.
What investors should watch next
For everyday investors, the key takeaway is that IG's business is highly sensitive to market volatility. When markets are calm, trading volumes fall, and so does revenue. When markets are volatile, the opposite happens.
Investors should also keep an eye on whether IG's retention rate stabilises or recovers. If the 70% figure is a new normal, IG's earnings power is structurally lower than it was before. If it's a temporary blip, the stock might be oversold.
The broader market backdrop also matters. European stocks have been rebounding as investors watch inflation and jobs data, but rising bond yields have pressured global markets. If volatility picks up again, IG could see a recovery in activity—but the retention issue would still weigh on its revenue per trade.
For now, IG's guidance cut is a clear warning that the trading boom of recent years has faded. Investors who own IG or its rivals should understand that these companies are cyclical, and their earnings are tied to market conditions that are largely out of their control.
