Before entering any trade, I define where the investment thesis becomes invalid and where I will exit.
In my Second Mover Strategy (SMS), risk management starts before the position is opened. I do not set a stop loss simply at an arbitrary percentage such as 5% or 10%. Instead, the stop is based on two things:
The nearest meaningful support zone
The stock’s normal daily volatility
The objective is to give the stock enough room to move normally without allowing a manageable loss to become a large one.
For example, if a stock has support around $100 and its normal daily volatility is approximately $3, I would not necessarily exit simply because the price briefly trades below $100. A normal fluctuation could easily create that move.
However, if the stock falls meaningfully below the support zone by more than its normal volatility, the original setup may no longer be valid. At that point, I exit rather than debate with the market.
This is an important principle of SMS: The market confirms the entry, and the market can also invalidate it.
Because SMS is a right-side, trend-following strategy, I enter only after seeing confirmation such as a breakout, successful retest, trend continuation, or strong price action supported by volume.
The same logic applies on the downside.
If the price structure that justified my entry disappears, there is no reason to continue holding simply because I still like the company.
Stop Loss Is Not About Being Right or Wrong
A stop loss is not an admission that the investment analysis was wrong.
It is simply recognition that the current trade setup has failed.
A great company can still be a bad trade at the wrong time.
I may still believe in the company's long-term fundamentals, but if the technical structure breaks, I would rather preserve capital and reconsider the stock later when a new setup develops.
Position Size and Stop Loss Work Together
Risk management is not only about where I exit.
It also determines how much I should invest.
The wider the distance between my entry price and invalidation level, the smaller the position should normally be. A tighter and stronger setup may allow a larger position while keeping the amount of capital at risk controlled.
This prevents one incorrect trade from causing disproportionate damage to the overall portfolio.
I also consider sector exposure. Owning several stocks from the same industry does not necessarily mean the portfolio is diversified. If those stocks react to the same macro or industry risk, they can behave like one large position.
Protect Capital First
The purpose of risk management is not to avoid losses completely.
Losses are unavoidable in investing.
The objective is to:
Keep individual losses manageable
Prevent small losses from becoming large losses
Avoid emotional decision-making
Preserve capital for the next opportunity
Allow winning positions to contribute more than losing positions take away
This creates positive asymmetry.
I do not need every trade to work. I need losing trades to remain controlled while giving successful trades enough room to develop.
My SMS Risk Management Principle
Define the risk before entering. Respect support and volatility. Exit when the setup is invalidated — no hoping, no debating.
Over time, investment performance is not determined only by finding great stocks.
It is also determined by how much you lose when you are wrong and how long you can stay in the game when conditions are difficult.
Good risk management allows investors to survive long enough for their investment edge to compound over time.