Averaging down lowers your break-even and raises your bet

Your plan was to buy 100 shares at $50 and be out at $48. The most you could lose was $200.

Price goes through $48 and keeps going. It is at $45, which is $500 down on paper, and the chart still looks like the idea you had. So you buy another 100 at $45.

Now you hold 200 shares at an average of $47.50, and the trade feels better. It needs a rise of 5.6 percent from here to get you out, where before it needed 11.1 percent to get back to $50.

That feeling is accurate. It is also where the trade stops being the one you planned.

The prices are made up. The arithmetic is the same in lots, contracts or coins.

What the discount costs

The average price fell and the size doubled. Those are two different things, and only one of them helps you.

If price falls on to $40, the stop you set at $48 would have cost you $200 and ended the trade. The position you built instead loses 200 shares times $7.50, which is $1,500. That is seven and a half times the $200 you agreed to lose at the start, on a trade you now hold at twice the size, with half of it bought into a falling price.

Why it feels like the risk went down

Break-even is a statement about where price has to get to. Risk is a statement about how much you lose if price keeps going the other way. Averaging down improves the first and worsens the second in the same click.

It feels like caution because the number you check, the break-even, moved in your favour. The number that matters, the dollars you lose for each dollar of further fall, doubled. On a leveraged account the add also uses margin, which leaves less room for the next leg down.

Adding to a loser is a new trade

The first order had a plan: a size, a stop and an exit. The second order has a price and a feeling.

That is the difference between averaging down and scaling in. Scaling in adds at levels written down before the first order, with the total risk capped before any money goes in. Averaging down adds after the plan has failed, with no cap, and it often arrives with the stop quietly gone. The stop you move is the decision this one usually travels with.

Two questions settle it before an add. Is the setup still valid, or am I only saying it is cheaper now? And is my total risk after this add above what I would have accepted at the start? If the second answer is yes, the add is a new bet, and it should earn its own size and its own stop like any other.

A smaller add changes the number too

Adding less feels like the compromise. Add 25 shares at $45 instead of 100, and a fall to $40 costs $1,000 on the first hundred and $125 on the new twenty-five, which is $1,125. That is more than five times the $200 you planned to lose.

The size of the add is not the question. The question is whether the total fits the risk you chose before the first order. A small add that breaks that number is still a bet you did not plan, and the next one is easier to justify than the last.

Find yours tonight

Open your log and find every trade where you opened a second entry in the same direction while the first one was in loss. Beside each, write the first trade’s planned risk, your total risk after adding, and the final result. Add up the results of those trades separately from the rest of the log.

If the adds lost money in total, write one line in your plan: no adds while the first entry is under water. Then put it somewhere harder to argue with than your own head, which is what the rules you write on Sunday is about.

Four early signs are worth knowing. The original stop is gone from the platform. Each add is bigger than the one before. The reason for the add is “it is cheaper now” and not “the setup is still valid”. And the trade gets called a scale-in afterwards, with no plan written before the first order.

A $200 loss is a stop doing its job. The $1,500 loss needed a second order.