Been thinking about this lately—most traders I know are terrible at actually measuring whether they're making money or just getting lucky. They remember the wins, forget the losses, and feel good about themselves. Sound familiar?

That's where roi comes in. It's honestly the simplest tool to cut through the noise and see what's really happening with your money.

Here's the thing: roi just shows you profit or loss compared to what you originally put in. That's it. You buy something for $1,000, sell it for $1,200, and your roi is 20%. The formula is basic—(Current Value minus Original Cost) divided by Original Cost. Anyone can calculate it.

But here's where most people mess up. They ignore costs. Let's say you spent $50,000 on fees and maintenance while holding an asset you bought for $200,000 and sold for $300,000. Your actual roi isn't as clean as the headline number. You need to account for those expenses. That $50,000 in costs changes everything.

Now, roi has real limitations—I'm not gonna pretend it's perfect. It doesn't tell you about time. A 50% roi over one year hits different than the same return over five years. It also ignores risk completely. You could have a high roi that looks amazing until the whole thing crashes. Liquidity matters too. An investment might look great on paper but be impossible to sell when you actually need the money.

So roi works best when you combine it with other metrics—risk-to-reward ratios, volatility, whether you can actually exit the position. Don't rely on roi alone.

In crypto specifically, tracking roi on individual trades and your overall portfolio strategy is how you actually know if what you're doing is working. Most platforms make it easier to pull this data, but understanding the logic behind the numbers matters more than blindly trusting dashboards.

The real value here? Consistently measuring your roi is what separates people who actually build wealth from people who just chase feelings and narratives. It forces honesty about whether your strategy is actually profitable or if you're just telling yourself a good story. That discipline compounds over time.