One rule. Measured from the most recent top.
The stop rises with every new top. No tuning per position, no second-guessing.
Your purchase price doesn't matter. The most recent top does.
The market doesn't know what you paid. Waiting to get back to break-even doesn't make a position recover — it leaves your money in a stranded asset, and stranded assets don't provide returns.
We've tracked breaches on 420 of the 1,300+ assets we follow. Of those assets, 65% are still more than 10% below the top they broke from — a median gap of 14%. A breach isn't a verdict on the price you paid. It says the asset has fallen from its top, past the rule you set in advance.
How it works
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1
Choose what to watch
Search 1,300+ assets and add the ones you hold.
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2
We track the top
Your stop moves up with every new top, never down.
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3
You get an email
Real-time, the moment a position breaks its stop.
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4
You decide
StoplossAlert never trades. You act at your own broker.
What the data says
Based on 1,052 breach episodes across 420 of the 1,320 assets we track. The other 900 haven't broken their stop — at least not until now. Which one goes next is exactly what nobody knows.
Also writing options on what you hold?
The options screener finds cash-secured puts, covered calls and PMCC combinations on stocks in an uptrend.
Open the options screenerPricing
Billed once a year. Every plan gets the same rule, real-time alerts and an optional weekly summary. The only difference is how many positions you track.
Alerts start as soon as you confirm your email.
Why I built this
I built StoplossAlert because selling is the hardest part of investing. Everyone has an opinion on what to buy, but almost nobody has a plan for getting out. So we hold on too long, watch a winner give back years of gains, and call it patience. A single trailing stoploss takes that decision out of the moment you're least equipped to make it.
— Jeroen, founder
Frequently asked questions
What is the purpose of a stop-loss?
It protects your capital. A stop-loss is designed to limit losses, not to maximise profits. Cut your losses short, let your winners run.
How does StoplossAlert work?
We use a trailing stop-loss that moves up as prices rise, and never down. It triggers when the price falls below a set percentage from the most recent top:
- Stocks: 20% below the most recent top
- ETFs: 15% below the most recent top
- Indices: 15% below the most recent top
- Commodities: 20% below the most recent top
- Crypto: 30% below the most recent top
What does "real-time" actually mean?
We check prices every 15 minutes while the market for that asset is open. Crypto is checked around the clock; stocks, ETFs and indices only during their own trading hours. When a check finds a price below your stop, the email goes out with that same update — so in the worst case you hear about it about fifteen minutes after the move, and usually sooner.
We compare against the last traded price from our market data, not the bid or the ask, so it can differ slightly from your broker's screen. And the price can move well past your stop before you are able to act, especially on a gap at the open.
How often do I hear about the same position?
One email per breach. If a position stays below its stop, we don't email you again — you already know. If it recovers and then breaks its stop a second time, you get a new alert, but never more than once a week for the same asset.
The dashboard shows when a position is back above its stop, and when its top has been reset after a breach.
Does StoplossAlert trade for me?
No. You get an email; you decide and act at your own broker.
Do I need to connect my broker?
No. You choose the assets, we watch the prices.
Why the most recent top and not my purchase price?
Because the market doesn't know what you paid. Waiting to break even keeps capital tied up in something that has already stopped working.
Can I set my own percentage?
No. One rule per asset class — that's the point. A stop you can widen on the morning it is about to fire is not a rule, it is a preference. Why these percentages, and why they are fixed →
Does the stop ever move down?
Only after a breach. If the price climbs back above the old stop, nothing changes. If it doesn't, but recovers by the rule's percentage from its lowest point, it gets a fresh start: an asset that fell from 100 to 20 and recovers to 24 gets 24 as its new top.
When should I consider selling without a stop-loss?
A stop-loss is one exit rule, not the only one. You may also decide to sell when:
- the company's fundamentals weaken
- the original investment idea no longer holds
- the valuation becomes excessive
- a better opportunity is available
- you need to rebalance your portfolio
And for plenty of other reasons. The rule handles one job: it tells you when a position has fallen far enough from its top that you said you would act.
What's the key mindset?
Plan your exit before you enter. A stop-loss rule reduces emotional decisions and keeps you disciplined when a position turns against you.
An asset I hold isn't listed. Can you add it?
If a stock, ETF, index or cryptocurrency is not yet supported, let us know at admin@stoplossalert.nl. Every request is reviewed and, where appropriate, considered for a future release.
We can't guarantee that a specific instrument gets added: that depends on data availability and our own review.
How do I pay?
Your alerts start as soon as you confirm your email. A payment link follows by email and you have seven days to complete it. Payment runs through a secure Rabobank request, so iDEAL from any Dutch bank works.
Activation is done by hand, so allow up to one business day. Plans are paid yearly.
Is this financial advice?
No. StoplossAlert is an informational tool. A stoploss is a risk-management rule, not a guarantee against losses or a prediction of future prices.