Trading term

What is Clearing?

Clearing is the step between a trade being agreed and the assets actually changing hands. A clearing house confirms both sides, nets down the obligations, and guarantees the trade will complete even if one side fails.

Pressing buy doesn't move anything. It creates a promise: someone will deliver 100 shares, someone else will deliver the cash. Clearing is the machinery that turns that promise into a settled transaction, and it takes a day or two.

A central counterparty sits in the middle. It legally steps between buyer and seller so each of you faces the clearing house instead of each other — a process called novation. It then nets everything down. A firm that bought 900,000 shares and sold 850,000 across the day only has to deliver the 50,000 difference, which is why the volume that settles is a fraction of the volume that trades.

The guarantee is the point. Because the clearing house has taken on the risk of both sides, it demands collateral up front — margin — sized to what it would cost to unwind a failing member's book. That's the deposit at the centre of every clearing arrangement, and the reason a defaulting broker doesn't cascade into everyone who happened to trade with it that morning.

For example

You buy 100 shares on a Monday. The trade clears through a central counterparty, which nets your broker's obligations against everything else it did that day. On Wednesday the shares land in your account and the cash leaves it — one settlement, two days after the trade you already saw confirmed.

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Why it matters to you

Clearing is where the money the clearing house demands actually gets called. In January 2021 the surge in meme-stock volume raised those margin requirements sharply overnight, and brokers that couldn't post the collateral restricted buying rather than defaulting. That episode was a clearing event, not a conspiracy — and it's a useful reminder that the plumbing between your click and your shares has capital requirements of its own.

⚠ Clearing and settlement are not the same step

They get used interchangeably and they're sequential. Clearing is the confirming, netting and guaranteeing. Settlement is the final delivery of the asset against the cash. The gap between them is why a trade can be executed and confirmed on your screen while the shares aren't yet yours to transfer out.

Frequently asked questions

What is clearing in trading?

It's the process between execution and settlement where a clearing house confirms the trade details, nets the obligations of each member, collects margin and guarantees that the trade completes.

What does a clearing house do?

It becomes the counterparty to both sides of every trade, nets the day's obligations down to a single figure per member, holds collateral against default, and manages the unwinding if a member does fail.

What's a self-clearing broker?

One that's a member of the clearing house and handles clearing itself rather than paying another firm to do it. Smaller brokers typically introduce their business to a clearing firm instead, which is why your confirmations may name a company you've never dealt with.

Related terms

Anchored VWAPAnchored VWAP is a volume-weighted average price that starts from one candle you choose, rather than resetting at the start of each session. You anchor it to a meaningful event — an earnings gap, a major low, a breakout — and it tracks the average price everyone has paid since.Ascending triangleAn ascending triangle is a bullish continuation pattern: a flat horizontal resistance line on top, with a rising trendline of higher lows beneath it. As the higher lows squeeze price against the ceiling, pressure builds — and it usually resolves with a breakout up through the resistance.ATR (Average True Range)ATR (Average True Range) measures how much a security typically moves in a period — its volatility — as an average of recent trading ranges. It doesn't say which direction price is heading, only how far it tends to travel, which makes it a core tool for stop-losses and position size.Bearish engulfingA bearish engulfing is a two-candle reversal pattern in which an up candle is followed by a down candle whose body completely covers it. The second candle opens above the previous close and closes below the previous open.
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