About
I BUILD TRADINGCALC BECAUSE I GOT TIRED OF GUESSING

I'm Serge. I have a finance degree. The real education came from trading. REITs in 2008. Forex a few years after that. Crypto since 2016.
I'm a short seller. Always have been. That's where the real edge is, if you go looking for it. Shorts take more discipline than longs, and more math to back it up. The risk is bigger. So is the reward, if you get it right. I run a small fund, and most of the ideas behind these calculators came straight out of that work. I also got blown up more than once. Badly enough that I still remember the numbers. Bad math did that, not bad luck. That's why TradingCalc exists. Not a signal. Not a prediction. Just the exact math, the same way an exchange computes it. Anyone can check it themselves.
From the outside this looks like a page of calculators. It isn't. Crypto perpetuals settle differently on every exchange. Forex has its own pip and lot rules per pair. Options settle in coin on some exchanges, cash on others. None of that is guesswork. Every formula gets checked against real exchange or broker documentation. Then tested against live market data. That's slow work. Repetitive, across a lot of markets. But it's the real product. Not the calculator you see. The checking underneath it. That's why the verification page exists. You don't have to take my word for it.
I've spent most of my career in corporate product roles. That means I don't need TradingCalc to make money. No subscriptions. No funnel to something else. If it ever pays for itself, that's a bonus. Not the plan. What you're looking at is my own collection of tools, built for my own trading over the years. I just want to share it now. The way I wish something had helped me back when I was the one getting blown up. I decided to open it up especially now, since API and MCP access became the standard way to actually use something like this.
The plan is the most complete suite a trader could actually use, in one place. Crypto futures. Forex. Options. On-chain risk. Prediction markets. Portfolio statistics. It's free. At least for now. See the full list of tools. I'm not betting on which exchange, coin, or platform wins. I don't need to. We don't mine the gold, we sell the shovels.
If you find this useful, you don't owe me anything. If you want to help anyway, write about TradingCalc somewhere. Or link to it from your own site. That's worth more to me than money right now.
Questions, feedback, or a broken calculator to report: s@tradingcalc.io.
Regards,
SK