Direct answer: which forex pairs to avoid
There is no single, permanent list of “forex pairs to avoid.” In practice, people often avoid pairs that create higher execution uncertainty. That usually means pairs that tend to have lower liquidity and wider spreads, because these factors can make entry and exit prices less predictable.
Within the scope of high liquidity pairs, a useful bounded rule is: if a pair behaves like a low-liquidity instrument in the conditions you care about (time of day, news around major events, and your broker’s available pricing), then it is reasonable to avoid relying on it rather than treating it as “safe.” This answer is informational only and does not predict outcomes.
Explanation: how “avoid” works in high liquidity terms
A forex pair’s day-to-day tradability is influenced by market liquidity and how tight the market quotes are.
- Liquidity: how easily large orders can be matched to buyers and sellers without moving the price much.
- Spread: the difference between the quoted buy and sell prices. Wider spreads generally increase the cost of execution.
- Price stability: how consistently the pair trades at coherent prices during your trading window.
“Avoiding” usually means reducing exposure to pairs where one or more of these points deteriorates. Even if a pair is generally well known, liquidity can change across sessions and during major scheduled announcements. So the most defensible approach is conditional: look for pairs that remain comparatively liquid and tightly quoted during the time you trade.
If you want to stay aligned with high liquidity pairs, you generally focus on instruments where liquidity is typically stronger (often those involving major currencies). Pairs that repeatedly show the opposite pattern—thin order books, delayed quotes, or outsized spreads relative to your target session—are the ones most likely to be “avoided” under this concept.
Example checks: how to compare both sides of the same decision
Use the same checks to compare a pair you consider with a pair you consider avoiding.
Check 1: Spread behavior
- Avoid candidates: spreads that are frequently wider than what you see on your preferred liquid pairs.
- High-liquidity-aligned alternative: tighter, more consistent spreads during your time window.
Check 2: Liquidity across the session
- Avoid candidates: liquidity that seems noticeably thinner during the hours you plan to trade.
- High-liquidity-aligned alternative: quotes that remain available and relatively stable.
Check 3: Quote continuity around events
- Avoid candidates: abrupt quote quality changes near major news (for example, less stable pricing or wider spreads persisting longer).
- High-liquidity-aligned alternative: comparatively steadier execution conditions.
These checks do not require real-time prediction. They focus on observable market microstructure signals that can vary by pair and by time.
Limitations and uncertainty
- There is no universal blacklist of forex pairs to avoid. What matters is the pair’s behavior under your time window and the specific conditions you observe.
- Even high liquidity does not remove risk. Slippage, volatility, and execution differences can still occur.
- Without current market data and your trading environment, you cannot confirm which exact pairs are “worst” for today’s conditions.
If you treat “avoid” as a verification mindset—screening for liquidity, spread tightness, and quote stability—then the concept stays accurate and bounded. For a deeper foundation on how this relates to trading liquidity, see the high liquidity pairs overview: /forex/forex-liquidity/high-liquidity-pairs/ and related session behavior: /forex/forex-liquidity/high-liquidity-pairs/which-forex-pairs-move-the-most-during-asian-session/.