Quick Answer: In forex trading, the bid price is what a broker pays to buy your currency, while the ask price is what you pay to buy from the broker. The difference between these two prices is called the “spread,” and it’s essentially the cost of making a trade.
If you’ve ever looked at a forex quote and wondered why there are two prices staring back at you, you’re not alone. This is one of the first things that confuses new traders, and honestly, it’s super important to get right.
Whether you’re doing online forex trading in Thailand or just getting started with a forex broker in Thailand, understanding bid and ask prices can save you from costly mistakes and help you trade smarter.
Let’s break it all down—simply, clearly, and practically.
What Are Bid and Ask Prices in Forex?
Every forex quote comes with two prices. Always. That’s just how the market works.
Bid Price — The Selling Price
The bid price is the price at which your broker (or the market) is willing to buy the base currency from you. In other words, it’s the price you’ll get when you want to sell.
Example: If EUR/USD shows a bid of 1.0850, it means the broker will buy 1 Euro from you for 1.0850 US Dollars.
Ask Price—The Buying Price
The ask price (also called the offer price) is the price at which the broker is willing to sell you the base currency. This is what you pay when you want to buy.
Example: If EUR/USD has an ask of 1.0853, you’ll need 1.0853 USD to purchase 1 Euro.
The Spread — The Gap Between the Two
The difference between the bid and the ask is called the spread. In the example above, the spread is 1.0853 − 1.0850 = 0.0003, or 3 pips.
This spread is how most forex brokers earn their revenue — not by charging you a commission, but by marking up the difference between buying and selling prices.
How Does the Bid-Ask Mechanism Actually Work?
Think of it like a currency exchange counter at an airport. When you arrive in Bangkok and want Thai Baht, you’ll notice the buy rate and sell rate are never the same. The shop buys low and sells high — that gap is their profit.
Forex works on the same principle, just electronically and at lightning speed.
Here’s what happens step by step when you make a trade:
- You open your trading platform (say, MT4 or MT5)
- You see a currency pair like USD/THB with two prices
- If you click BUY, you’re buying at the ask price (higher)
- If you click SELL, you’re selling at the bid price (lower)
- The spread is already baked into your entry—it’s an immediate cost
This is why when you enter a trade, you’ll often see it start with a small loss. You haven’t done anything wrong—that’s just the spread at work.
Types of Spreads You’ll Encounter
Not all spreads are equal. Here’s a quick comparison:
| Spread Type | How It Works | Best For |
| Fixed Spread | Always the same, regardless of market conditions | Beginners, news traders |
| Variable Spread | Changes based on market volatility and liquidity | Experienced scalpers, quiet markets |
| Raw Spread | Near-zero spread with a separate commission fee | Scalpers, high-volume traders |
Why Does the Bid-Ask Spread Matter to You?
Here’s the honest truth — the spread directly impacts your profitability. Every single trade you make starts at a small loss equal to the spread. Your trade has to move in your favor by at least the spread amount before you break even.
Let’s say you’re doing forex trading in Thailand and you open a EUR/USD position with a 3-pip spread. Your trade needs to move 3 pips in the right direction before you’re at zero. Only after that does it count as profit.
This is why choosing the best forex broker in Thailand matters — a broker with tighter spreads means less drag on every trade you make.
Factors That Widen or Tighten the Spread
- Market liquidity: Major pairs like EUR/USD have very tight spreads. Exotic pairs? Much wider.
- Time of day: Spreads are tightest during peak trading hours (London and New York sessions overlap).
- News events: During major economic releases, spreads can spike dramatically.
- Broker type: ECN/STP brokers typically offer tighter spreads than market makers.
- Volatility: Sudden market shocks can widen spreads unpredictably.
Benefits of Understanding Bid-Ask Prices
Once you really get how bid and ask prices work, a few things become much clearer:
- You’ll understand your true entry and exit costs before placing a trade
- You can compare brokers more accurately—not just on features, but on actual spread costs
- You’ll be able to time trades better (e.g., avoid trading during wide-spread news events)
- You’ll spot whether a broker is offering competitive pricing or quietly eating your profits
- You’ll make smarter decisions about which currency pairs to trade
Risks to Watch Out For
Understanding bid/ask also means being aware of how some brokers exploit it:
Spread Widening During Volatility
Even if your broker promises a 1-pip spread on EUR/USD, that can jump to 5–10 pips during major news. If you’re in an open trade when this happens, your stop-loss might get hit — not because price really moved there, but because the widened spread triggered it.
Slippage
Slippage happens when your order executes at a different price than expected. This is more common in fast markets and often comes down to the bid-ask dynamics behind the scenes.
Re-quoting
Some less reputable brokers may ‘re-quote’ your order—meaning they don’t fill it at the price you asked, citing ‘price changes.’ This is a red flag and one reason why choosing a regulated broker matters.
That’s why at Oqnix, we work with a broker regulated by Saint Lucia, ensuring transparent pricing, no hidden fees, and fair execution every time.
How to Use Bid-Ask Prices in Your Trading: Step-by-Step
- Check the Quote: Open your trading platform and identify the bid and ask prices for your chosen pair.
- Calculate the Spread: Subtract bid from ask to know your entry cost. For EUR/USD: 1.0853 − 1.0850 = 3 pips.
- Choose Your Direction: Buying? You’ll use the ask price. Selling? You’ll use the bid price.
- Factor Spread into Your Strategy: Set your take-profit and stop-loss with the spread cost in mind.
- Monitor During High-Impact Events: Check economic calendars and be cautious of wider spreads around news.
- Review Your Broker’s Spread History: A good broker like the ones Oqnix partners with will show transparent spread data.
Frequently Asked Questions (FAQs)
Q1: What is the difference between bid price and ask price in forex?
The bid price is what you receive when you sell a currency pair, and the ask price is what you pay when you buy. The ask is always higher than the bid, and the gap between them is the spread — your transaction cost.
Q2: Why do bid and ask prices keep changing?
Forex is a live, 24-hour market. As traders buy and sell, the forces of supply and demand constantly move prices. The bid and ask update in real time, sometimes multiple times per second on major pairs.
Q3: How does the spread affect my profit?
The spread is essentially a cost you pay upfront on every trade. If you buy EUR/USD at the ask price of 1.0853, you need the price to rise above 1.0853 (plus spread) before you’re in profit. Smaller spreads mean lower breakeven points and better margins.
Q4: What is a good spread for forex trading in Thailand?
For major pairs like EUR/USD, a spread below 2 pips is considered competitive. For USD/THB or exotic pairs, expect wider spreads (5–20 pips). The best forex broker in Thailand will show you transparent spread data and offer tight pricing especially on major pairs.
Q5: Is a regulated forex broker important when considering spreads?
Absolutely. A broker regulated by a recognized authority (like the FSA of Saint Lucia, as with Oqnix’s partner broker) is required to offer fair execution and transparent pricing. Unregulated brokers may artificially widen spreads or manipulate quotes to their advantage.
Q6: Should I always trade at the tightest spread?
Not necessarily. A tight spread is great, but also consider execution speed, slippage, and platform reliability. Sometimes, a broker with a slightly wider spread but superior execution can save you more money in the long run than one with a tiny spread and frequent slippage.
Q7: Can I negotiate spreads with my broker?
For retail traders, spreads are generally fixed or market-driven. However, high-volume traders and institutional clients sometimes negotiate tighter spreads. If you’re scaling up your trading volume, it’s worth asking your broker about volume-based pricing.
Conclusion
Bid price vs ask price — it sounds technical, but once it clicks, it changes how you see every trade you make. You stop wondering ‘why did my trade start in loss?’ and start making decisions that account for real costs.
Whether you’re brand new to forex trading in Thailand or you’ve been at it for a while, understanding the spread is non-negotiable. It affects your profitability, your strategy, and even which broker you should choose.
At Oqnix, we’re committed to helping traders in Thailand and across Southeast Asia trade with knowledge and confidence. Our partner broker is fully regulated by Saint Lucia, offering
