1. Seller
You subscribe to the strategies from:
- Niko Solidaki, trading as Chaldea Labs
- Biblioteksgatan 4, 435 30 Mölnlycke, Sweden
- Email: daro@chaldealabs.com
These terms apply when you subscribe as a private individual (a consumer) on chaldealabs.com.
2. What you subscribe to
A subscription gives you an automated strategy as software: its add-on for NinjaTrader 8, which carries the strategy's name, and a licence key. We supply it month after month for as long as the subscription runs.
The strategy runs in your own NinjaTrader 8, on your own account. It trades one contract, one position at a time, and is flat before the close.
The licence is personal. You may use it on two of your own computers. You may not share, copy or sell the add-on or the key, and you may not reverse engineer or tamper with the add-on.
The add-on needs our server when it starts and once a day, to check your key. If it cannot reach our server when it starts, it does not trade and tries again every five minutes. It trades from the moment our server answers that your licence is valid. An answer it saved earlier never turns trading on.
The add-on sends us its key, a machine id, and its own name and version. It never sends us prices, orders, positions, balances or logins. Our server answers whether the licence is valid and sends the strategy's current version. It never sends instructions to trade, settings or market data.
Updates come through the add-on, for the reasons section 8 names: it loads the strategy's current version when it starts. Every month you also get the month's measured result by email.
The content must match what the strategy's page said when you subscribed. The page lists what you get and what you need to use it.
3. Prices
Prices are per month. They are in US dollars (USD) and include VAT where it applies.
You pay the price shown on the strategy's page when you subscribe.
We may change the price. If we do, we email you at least 30 days before the new price applies. You may end the subscription before then, and you then never pay the new price.
4. Ordering and payment
You subscribe by pressing Subscribe on the strategy's page. Before that you tick two boxes. Section 7 says what they mean.
The button takes you to the payment page of our payment provider, Stripe. You can pay by card or Klarna. Your card details are handled by Stripe, not by us.
If you choose Klarna, Klarna's own terms also apply.
On the payment page you confirm once more that delivery starts now and that your right of withdrawal then ends, and you confirm that you have read that the strategy is experimental and can lose money (section 12).
You pay the first month when you subscribe. After that the same amount is charged every month, on the same day of the month, until the subscription ends.
The contract is made when the first payment has gone through. You then get a receipt from Stripe, and an email from us with your licence key and the add-on. That email repeats these terms and your confirmations.
5. Duration and cancellation
The subscription runs month to month. There is no fixed term.
You can cancel any time. Cancel in Manage subscription, or email us at daro@chaldealabs.com. Any clear message is enough.
The subscription then ends at the end of the month you have paid for. The add-on stops then, and no new payment is taken.
We confirm every cancellation by email.
We do not refund a month that has started. The exceptions are a withdrawal in time (section 7), a change to your detriment (section 8) and a fault in the strategy (section 9).
6. Delivery
Straight after your first payment, the page you come back to shows your licence key and the link to download the add-on. We send both by email at the same time.
The download works for as long as you pay.
All emails go to the address you give when you pay.
Nothing came? Look in your spam folder first. If it is not there, email us at daro@chaldealabs.com and we send it again.
7. Right of withdrawal
When you buy online you normally have a 14-day right of withdrawal. This is set out in the Distance and Off-Premises Contracts Act (lag 2005:59 om distansavtal och avtal utanför affärslokaler). For a subscription the 14 days count from the day you subscribe.
The two confirmations
Before you pay, you tick two boxes on the strategy's page. Both are about the right of withdrawal:
- Start now: you ask us to deliver the strategy straight away.
- You understand that you lose your 14-day right of withdrawal once delivery has started.
You cannot subscribe without both. Delivery then starts straight after payment, with your key and the add-on on the page and in our email, and the right of withdrawal ends. Our email records both confirmations. The record comes from Stripe's payment page, where you confirm them once more (section 4).
If our email does not record your two confirmations, the right of withdrawal does not end. If you then withdraw, you pay nothing for what was delivered.
The right applies once, from the day you subscribe. A new month of the same subscription gives no new right of withdrawal. You can always cancel, as section 5 says.
How to withdraw
Use the form at Withdraw from contract. You can also email us at daro@chaldealabs.com. You may use the standard withdrawal form from the Swedish Consumer Agency (Konsumentverket, in Swedish), but you do not have to.
We confirm your withdrawal by email without delay. The email says when we received it.
Your money back
If you withdraw before delivery began, you get back everything you paid. We pay it within 14 days of receiving your withdrawal, the same way you paid.
The law may treat the subscription as a service rather than digital content. If it does, you may still withdraw within the 14 days. You then pay only for the part delivered before you withdrew, counted by the days, and get the rest back.
Even when the right of withdrawal has ended, you can always complain if something is wrong with the strategy. Read more under Faults and complaints.
8. Changes to a strategy
We change a strategy only for one of these reasons:
- a data source the strategy uses changes or stops,
- a law or a public authority requires it,
- an error must be fixed, or
- research shows that the rules must change.
A change costs you nothing extra. It reaches you through the add-on, which loads the changed strategy when it starts.
We tell you by email before the change applies. The email says what changes and why.
If a change is to your detriment, you may end the subscription at once, up to 30 days after the change. You then get back what you paid for the rest of the month.
9. Faults and complaints
The strategy must match what its page said when you subscribed, for as long as you pay. If it does not, that is a fault. For example, the add-on does not start, the key is refused while you pay, or the strategy does not do what its page says.
You then have the right to complain (make a claim) under the Consumer Sales Act (konsumentköplagen, lag 2022:260). Chapter 9 of the Act covers digital content and digital services.
We must keep the content working, and as the page describes it, for as long as your subscription runs. A fault that shows up while the subscription runs is ours to put right.
- Tell us as soon as you can after you have noticed the fault. Email daro@chaldealabs.com and say what is wrong.
- First we put the fault right, for example with a corrected add-on or a new key.
- If we cannot put it right, or it takes too long, you can get a price reduction. You can also end the subscription and get back what you paid for the time the content was faulty and for any time paid in advance.
- We pay back within 14 days, the same way you paid. It costs you nothing.
10. Our responsibility and yours
We are responsible for faults in the content, as the Consumer Sales Act says. We do not limit that responsibility where the law does not allow it. If a fault causes you a loss, you may have a right to damages.
A losing month is market risk, not a fault, as long as the strategy does what its page says. A strategy can lose money.
You set your own hard limits on position size and daily loss in NinjaTrader. We never have access to your account or your broker.
We give no personal advice. We do not know your finances, and every subscriber gets the same strategy.
You decide if and how you use a strategy, and how much money you put in.
Nothing in these terms limits your rights under mandatory law.
If you live in another EU country, you keep the protection your own country's consumer law gives you.
11. Not investment advice, and who produces the strategies
Past returns are no guarantee of future returns. Money you invest can both rise and fall in value, and you can lose the whole amount. The content is general information and not personal investment advice.
The strategies are general information and software. They are not personal investment advice. Everyone who subscribes gets the same strategy, and what it does is not an instruction to you.
The strategies are produced by Niko Solidaki (Strategy producer), trading as Chaldea Labs.
We present each strategy objectively: what it trades, its simulated results and its risks, including that it can lose.
If you ask, we tell you whether we hold positions in the instruments a strategy trades.
12. Simulated results and experimental strategies
The results on the strategy pages are simulated. They are not results of real trading, and there are no live fills behind them.
- The day strategies of Chaldea are simulated on historical NQ data at one-minute bar prices, for one NQ contract (5 US dollars a tick). Each trade is charged its measured cost: crossing the spread on the way in and out, plus commission, on average 4.1 ticks a trade.
- Their forward sessions, in April 2026, were replayed on the recorded order book, buying at the ask and selling at the bid, plus 0.94 tick of commission a trade.
- The order-book strategies of Eridu (Ziusudra, Enkidu and Sargon) are simulated on the NQ order book as it was recorded from September 2025 to April 2026, for one NQ contract, buying at the ask and selling at the bid, plus 0.94 tick of commission a trade; the recorded days are the series our research record keeps, and there is no session in May 2026. For Sargon, whose orders wait in the order book, a fill is counted whenever a trade reached the order's price, which is not a proven live fill rate.
- The rules were found on the same history that the results cover, so the history can show more than you should expect.
Every strategy is experimental. None has been verified on a live account. How a strategy behaves under disconnects, partial fills, contract rollover and data gaps has not been proven. Its live results may differ from the simulated results.
Past results are no guarantee of future results. Trading futures carries risk, and you can lose the whole amount.
When you subscribe, the payment page records that you have read this and that you accept that the strategy can lose money.
13. Where we do not sell
We sell to private individuals only.
We do not sell to residents of the United States. If a payment comes from a billing address in the United States, we do not deliver the strategy: we cancel the subscription and refund the payment.
14. Personal data
When you subscribe, we handle your name, your email address, your billing address, what you subscribe to, your payments and your licence. We need them to deliver the strategy, to take payment, to check the licence and to keep the accounts the law requires.
Read how we handle personal data, and what rights you have, on our privacy page.
15. If we cannot agree
First get in touch with us at daro@chaldealabs.com. We want to solve the problem together with you.
If we cannot agree, you can turn to the National Board for Consumer Disputes (Allmänna reklamationsnämnden, ARN). ARN is a public authority that hears disputes between consumers and businesses. Filing a complaint costs nothing. Read more at arn.se.
You can also get free advice from Hallå konsument at hallakonsument.se.
A dispute can also be tried in a Swedish court. Swedish law applies to the subscription. Section 10 says what that means if you live in another EU country.
16. Contact
Questions about your subscription? Contact us:
- Niko Solidaki, trading as Chaldea Labs
- Biblioteksgatan 4, 435 30 Mölnlycke, Sweden
- Email: daro@chaldealabs.com