How to tell if you're overtrading (and how to stop)

The most expensive investor isn't the one who picks wrong. It's the one who can't sit still.

What overtrading actually is

Overtrading is trading more than your strategy requires — frequent buys and sells, short holding periods, and chasing moves. It feels productive. It usually isn't. Every trade adds a cost, a potential tax event, and another chance to be wrong.

The evidence is brutal

In one of the most famous studies in finance, Barber and Odean tracked 66,000 accounts. Their finding was simple: the more people traded, the less they made. The most active traders underperformed the least active by roughly 6.5% a year. Activity felt like effort; it produced the opposite of results.

How to spot it in yourself

The signs are in your own history: a short average holding time, a high number of trades per month, a long list of quick round-trips, and a habit of selling in fear then buying back in. Most people badly underestimate how active they really are.

You don't have to guess. AlphaScore reads your actual transaction history and tells you — it names your investor type, and if you're an Overtrader, it says so plainly. It runs entirely in your browser; nothing is uploaded.

How to stop

The fix is unglamorous, which is why it works. Adopt a 48-hour rule: no sell without sleeping on it. Automate your monthly investing so the default is doing nothing. Fewer, bigger decisions beat a stream of small ones. Keep a low-cost index fund as your core, and let any active trades be a small slice on top. Then measure — what gets measured gets calmer.