Already Losing After Opening a Trade? Understanding the Spread
Why can an account show a small loss immediately after buying an asset? One common reason is the spread: at the same moment, the market's buying price and selling price differ. Think of exchanging foreign currency at a counter: the price at which the counter sells it to you is usually higher than the price at which it buys it back. If you close a trade in the opposite direction immediately after it is filled, you generally face the difference between those quotes, so the position may start with a negative figure. This is a result of quote and cost structure, not necessarily a meaningful move in price against you.
Bid, Ask and the Spread
Financial quotes are commonly shown as Bid and Ask: the Bid is the price at which market participants are willing to buy, and the Ask is the price at which they are willing to sell. From a trader's perspective, a buy is generally filled at the Ask and a sale at the Bid. Spread = Ask − Bid. For example, if an asset is quoted at 99.98 / 100.00, a purchase is generally made at 100.00 and an immediate sale may be made at 99.98. The 0.02 difference is the quoted spread, before other costs. If the price does not move, the position may show an unrealised loss corresponding to that difference.
A trading interface may show only a midpoint or chart price, while orders execute against Bid/Ask quotes. Which side of the quote a chart uses, and whether it displays the spread, depend on the platform settings. As a result, even if the chart appears unchanged, the spread can still affect a position's profit or loss.
How Does the Spread Appear in Different Markets?
- Forex: Currency-pair spreads are commonly expressed in pips or decimal places. Major pairs may have narrower spreads when liquidity is strong; crosses or quiet markets may have wider ones. Pip value also depends on the pair, lot size and account currency.
- Stocks and ETFs: The spread is the difference between the best offer and best bid, expressed as a per-share amount or relative percentage. Popular shares often have tighter quotes during active hours; less liquid shares, opens or news releases may have wider spreads.
- Futures: The exchange order book displays bid and offer levels, and the spread is often measured in minimum ticks. Expiry month and liquidity affect the quotes in the book.
- Index and commodity CFDs: A platform's quotes may include a bid-ask spread set by the provider. The spread structure varies by product, time and quote source; check whether commission or financing is charged separately.
- Crypto assets: Order-book depth varies substantially by platform, trading pair and time. The best quote on screen may not allow a large order to be filled entirely at one price.
The spread may be one of a provider's main sources of trading revenue, and may also reflect current market liquidity and supply and demand. Cost structures differ: some products have wider spreads and no separate commission, while others have narrower spreads and charge commission in addition. Compare the full cost rather than one figure.
Why Does the Spread Change?
The spread is affected by the number of buyers and sellers, order-book depth, market volatility, trading hours and quote sources. When a market is active and the order book is competitive, bid and ask quotes may be closer together. Thinner liquidity, fast price jumps, major economic data or company announcements, market opens and closes, and periods around holidays may widen quotes. Spreads can also differ by platform because quote sources, execution models and fee arrangements differ.
How Can the Spread Affect Trading Costs?
The spread's impact generally increases with position size. If a product's bid and ask differ by 0.10 yuan, buying 100 units and immediately exiting costs about 10 yuan in spread, before other charges. For a short holding period or a small target profit, the spread may account for a particularly large share of expected profit and loss. Over longer holding periods, overnight interest and financing charges may also become more significant. Actual calculations must use the product's contract units, account currency and filled quantity.
The spread is not the only cost, and it cannot always be known in advance as a fixed number. Total trading costs may also include commissions, exchange fees, taxes, borrow fees, overnight financing, funding rates, currency conversion and differences between expected and execution prices.
What Can Retail Traders Do?
- Check current Bid and Ask prices before placing an order rather than relying only on a single chart price; confirm quote units in the product specifications.
- Observe typical spreads for the instruments you trade at different times. Do not treat a quiet-period quote as a fixed all-day cost.
- Reassess order size and acceptable costs around major data, opens, closes and low-liquidity periods; consider waiting for quotes to normalise.
- Understand that market orders generally prioritise execution, while limit orders restrict acceptable prices but may not fill. Each has trade-offs; product rules apply.
- Compare platforms and products by total cost rather than judging by a single claim such as “zero commission” or “low spreads.”
In summary, the spread is the distance between the buy and sell prices and is a key concept for understanding why a position may show a small loss right after opening. Actual spreads, costs and quoting methods vary by market and platform, so check the specific product documentation before trading. This article provides general information and is not investment advice.