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What happens when your broker changes liquidity providers

Brokers change or add liquidity providers from time to time. It's usually invisible to clients, but sometimes you notice: spreads behave differently, fills change, or prices at certain times of day look different from before.

The reasons vary. A broker might find a provider with better pricing, lose one, or restructure after a regulatory change. Some brokers switch quietly, others send a notice.

For scalpers, the effect can matter. If your strategy depends on tight spreads at a certain time, a new provider might have wider spreads then. If you scalp around news, the new provider might handle fast markets differently. Even the price feed itself can change slightly, which might shift where small spikes appear on your chart.

What I'd watch for: a sudden change in average spread during your trading hours, more requotes or slippage than usual, or chart levels that don't line up with what you saw before. If your results change for no obvious reason, a change in pricing behind the scenes is one possibility.

Keeping a simple log of spreads at your trading times makes it easier to notice. You don't need to log every trade. Checking the spread at the same time each day for a few pairs is enough to spot a shift.

If something changes, asking support directly is reasonable.

Brokers sometimes migrate clients to new servers at the same time as a provider change. That can mean a new server name to log into, new symbol names, and a different chart history. If you get an email about a server migration, treat it as a possible change in pricing too. Comparing spreads and fills for a week after the migration is a good idea. If the old server is still available for a while, running both side by side shows the difference directly. Even a week of data is enough to see a clear shift in average spread at your usual hours.

For EAs, a pricing change can affect results even if nothing is wrong with the code. A strategy that relies on a particular spread pattern or on small price spikes can behave differently with a new feed. If an EA's live results drop suddenly, checking whether anything changed on the broker side should be one of the first steps. Recording spreads in the EA's own log, at the time of each trade, makes it much easier to tell whether costs have shifted. Without that log, you're left guessing whether the strategy or the costs changed.

The change can show up as a different spread pattern at certain hours, often around the open or rollover. Traders who log spreads by time of day are usually the first to notice.

If fills or spreads clearly get worse after a change, asking support is reasonable. Some brokers will confirm a change in liquidity providers, while others will not. Either way, the log gives clear evidence, which is more useful than a general complaint.

Spread patterns often change after a provider switch. The average might stay similar, but the times when spreads widen, and how far, can shift. If you trade around specific times, like the London open or the rollover, check whether spreads behave the same way after a change. A strategy that relied on tight spreads at a particular moment might suddenly face wider ones. Logging the spread at entry for each trade makes this easy to spot. Without that log, you'd only notice through worse results, which takes much longer. A spread column in the journal is the simplest version of that log.

How would you even know your broker changed providers? Brokers don't always announce it. Sometimes the only hint is a change in execution quality, spreads or price behaviour. If something feels different, asking support directly is reasonable. They might confirm a change or explain what happened. Keeping records of your fills and spreads over time gives you something concrete to point to when asking. Without data, it's hard to tell a real change from normal variation in market conditions. A monthly average of spread and slippage from your own trades is the easiest baseline to keep, and it makes any change much easier to prove.