I've been trading forex for a while, and there's one thing that new traders often overlook, which is the hidden cost of the spread. You’ve probably heard of this concept somewhere, but it’s actually more important than you think.

What is the spread? Simply put, it’s the difference between the bid price (buy price) and the ask price (sell price) of a currency pair. When you look at EUR/USD being 1.1021/1.1023, that 2 pips difference is the spread—that’s the cost you pay for each trade. The formula is very simple: Spread = Sell Price - Buy Price.

I realize that the spread is how brokers make money. Instead of charging you a separate fee, they “take” it from the price difference. That’s why when they say “no commission,” you’re actually still paying a fee—it’s just hidden within the spread.

There are two types of spreads you need to know. Fixed spreads are usually offered by market makers—they stay constant, making it easier for you to calculate costs. But the problem is, during volatile market conditions, you might encounter requotes or slippage—the price you get is different from what you expected.

Variable spreads are different—they change according to market conditions. The advantage is that you get prices from multiple liquidity providers, so the prices are usually more transparent. But the downside is, when the market is quiet or news is released, the spread can widen dramatically—from 1 pip to 10 pips or more.

I’ve learned that there are certain times when spreads widen significantly. Market session overlaps (midnight between days) are an example—liquidity is thin, fewer traders, so the price difference increases. News releases are the same—when important news comes out, suddenly everyone wants to trade in the same direction, and spreads widen to protect brokers’ interests.

Calculating the spread isn’t complicated either. If you trade EUR/USD at 1.14500/1.14509, the spread is 0.00009 or 0.9 pips. If you open one contract, the cost is about $9. Trading 10 contracts? That’s $90 just because of the spread.

I’ve noticed that to minimize costs from the spread, you should trade during peak hours when there are more buyers and sellers. At those times, competition is high, and market makers will narrow the spread to keep clients. Also, avoid trading less-liquid pairs—they tend to have wider spreads.

What is the spread? In summary, it’s an unavoidable part of trading. But if you understand how it works, you can better manage your costs. Choose the right time, the right currency pairs, and always check the spread before entering a trade. That’s how you protect your profits.