What is slippage in trading?

Risk warning: CFDs are complex instruments with a high risk of losing money rapidly due to leverage. 70–80% of retail investor accounts lose money when trading CFDs. Risk disclosure · Past performance.

Slippage is most visible on market orders during fast-moving or thin markets, because those orders are filled at the best available price rather than a fixed one. It applies to manual trading, copy trading and automated execution alike. No tool can eliminate slippage, but traders can manage it with order types, price-tolerance limits and awareness of when liquidity is low.

Slippage is the difference between the price you expect when you place an order and the price you actually get when it executes. If you click to buy at one price but the order fills a fraction higher, the gap between those two prices is your slippage.

It exists because a quoted price is only a snapshot. Between sending an order and the broker or exchange matching it, the market can move. A market order is a request to trade at the best price available right now, not a promise of a specific price — so the fill can land on either side of what you saw.

Slippage comes from the price changing, or the order book thinning out, in the short window between order and fill. Four factors drive most of it:

• Volatility — during fast moves and major news (rate decisions, NFP, earnings), prices reprice rapidly and fills drift from the quoted level.
• Low liquidity — when few orders sit at the price you want, your order eats into the next levels of the book and fills at an average that differs from the top quote.
• Latency — the time for an order to travel to the broker or exchange and be matched; the longer that path, the more the market can move first.
• Gaps — when a market reopens after a weekend or halt, the first available price can be far from the last one, so there is simply no fill at the old level.

Negative slippage means your order filled at a worse price than expected — a higher price on a buy, or a lower price on a sell. Positive slippage means it filled at a better price than expected. Both come from the same mechanism: the market moved before your order was matched, and which way it moved decides whether you benefit or lose out.

Traders tend to notice negative slippage more, but in liquid markets positive slippage happens too. An honest broker passes on both. Slippage is not the same as a spread or a commission: those are known costs you agree to up front, while slippage is the unplanned price difference at the moment of execution.

Copied and automated signals add an extra step where slippage can creep in. A signal names an intended entry price, but by the time it is read, parsed and routed to your broker, the market may already sit somewhere else — so your fill can differ from the level quoted in the original signal. This is normal, and it is why an entry that looks perfect in a channel can still fill a little off on your own account.

You cannot remove slippage, but you can limit how much you accept. Most platforms support a maximum-deviation or price-tolerance setting: if the available price is further from the target than your chosen tolerance, the order is rejected instead of filled at a price you did not want. Using limit orders instead of market orders, sizing positions sensibly, and avoiding the seconds around high-impact news all reduce exposure to it.

PipSync is one example of a cloud execution layer: signals are parsed and routed server-side, and its public beta records execution-latency telemetry so users can see how their own route behaves rather than rely on a marketing figure. That visibility helps you judge slippage on your setup, but no execution tool — PipSync included — can eliminate it, because the underlying market is what moves.