What MrStockTrader actually does for you

You set the rules once. After that it watches the market for you, all day, every trading day, without you sitting in front of a screen. You can leave it running indefinitely.

It never gets tired

The engine runs on our server on a sixty-second loop. It does not need your computer switched on, your browser open, or you awake. Close the laptop and it keeps working.

It never gets emotional

It sells at the number you set, not the number you talked yourself into at three in the afternoon. The rule you wrote this morning is the rule it follows all day.

Practise before you risk anything

Every account starts on paper money — real prices, pretend funds. Watch it for a week or a month. Nothing goes live until you decide it does.

You decide when it stops losing

This is the part most people care about, so it has the most controls:

  • Stop-loss. A position that falls past your percentage is sold. No debate.
  • Take-profit. A position that rises past your percentage is taken.
  • Trailing stop. Once you are in profit it follows the price up and never back down, so a winner is not allowed to become a loser.
  • Daily loss cap. Lose your chosen amount and the engine stops buying for the rest of the day.
  • Bad-day and poor-day gates. If the day's losses reach a set share of the day's spending, it slows down; further, and it stops opening anything new.
  • End-of-day flatten. It can close everything a few minutes before the bell so you do not hold overnight.
  • Circuit breaker. Repeated errors from the broker and it pauses itself instead of hammering away.
  • Reset for tomorrow. One button clears the day's counters so a bad Tuesday does not sit on Wednesday.

You decide what it is allowed to buy

  • Price ranges. Tick the bands you want — ten cents to a dollar, one to two, two to three, three to five, five and up, or one switch for everything from ten cents upward.
  • Minimum volume. Ignore anything too thin to get out of again.
  • Maximum spread. Skip anything where the gap between bid and ask is wider than you accept.
  • Liquidity observer. Watches a candidate for a few seconds first and rejects it if trading has quietly dried up.
  • Your own white and black lists. Only these tickers, or never these tickers.
  • What counts as a signal. Rank jumps, price spikes, volume surges, volume doubling — turn each on or off.
  • Never doubles down. It will not add to a position you already hold.
  • Cool-down after selling. It will not buy straight back into something it just sold.

You decide how much, and when

  • Order size your way — a fixed number of shares, a fixed number of dollars, or a percentage of your buying power.
  • Daily spending cap. A hard ceiling on what it may spend in one day.
  • Caps on frequency. Most buys per day, per loop, per symbol, and a minimum gap between them.
  • Trading hours. Pre-market, regular, after-hours, overnight — each its own switch.
  • A calendar. So many times per day, week or month, only on the weekdays you pick, only in the weeks you pick.
  • Market holidays understood. It knows when the exchange is shut, including half-days, and stays quiet.

You can always see exactly what it did, and why

Your money and your keys stay yours

We have no affiliation with Alpaca and earn nothing from them. We use them because their API is what lets a program place orders at all.

And the honest part

None of this is a promise of profit, and nothing here is financial advice. Trading carries a real risk of loss and you can lose everything you put in. The tool follows your rules; the outcome is yours. Please read the disclaimer before you start — it is short and it is written in plain English.