Enough noise. We know what matters. Trade with a broker who gets trading. Enough noise. We know what matters. Trade with a broker who gets trading. Copyright © 2024 All rights reserved. To select a forex broker, start by looking for brokers that are regulated in your country and any available consumer compensation funds provided as protection against bankruptcy. Next, read full-length forex reviews. Finally, compare your top two choices side by side to decide on a winner. Currencies with high liquidity have a ready market and tend to exhibit a more smooth and predictable price action in response to external events. The U.S. dollar is the most traded currency in the world. It's the other side of the paired in nine of the world's 10 most traded currency pairs. Currencies with low liquidity, however, can't be traded in large lot sizes without causing a market movement.