Terms

Using this site or the API means you accept what is below. It is written to be read, not to be skipped.

1. What this is

Quant Data provides educational analytics and developer tooling: probability distributions, historical statistics, and derived options metrics. It is a description of data, not a recommendation about what to do with it.

2. Not investment advice

Nothing on this site or returned by the API is investment advice, financial advice, a solicitation, an offer, a recommendation to buy or sell any instrument, or a price forecast. It is not personalised to your circumstances, objectives or risk tolerance, and it does not take them into account. We are not a licensed financial adviser, broker, or dealer, and we do not manage anyone's money. If you want advice, get it from someone regulated to give it.

Every trading decision you make is yours alone. Trading and investing carry a real risk of loss, including loss exceeding your deposit in leveraged products. Past measurements do not predict future results.

3. No warranty

The service is provided "as is" and "as available", with no warranty of any kind, express or implied, including fitness for a particular purpose, accuracy, or uninterrupted availability.

Specifically and without pretending otherwise: the data may be delayed, incomplete, or wrong. It comes from third-party sources that can fail or revise. Model outputs are statistical estimates that will be incorrect a meaningful share of the time, and the published accuracy figures are historical measurements, not guarantees. The service may be down, changed, or discontinued.

4. Liability

To the fullest extent permitted by law, we are not liable for any trading loss, lost profit, lost opportunity, or any indirect or consequential damage arising from use of this site, the API, or anything derived from them. Where liability cannot be excluded, it is limited to the fees you paid us in the three months before the claim arose. Nothing here excludes liability for fraud or for anything else that cannot lawfully be excluded.

5. Your key

• A key is personal to you or to your single organisation. Do not resell it, sublicense it, share it publicly, or embed it in a distributed client where others can extract it.
• Keep it secret. Requests made with your key are treated as yours. Tell us immediately if it leaks and we will rotate it.
• Fair use. Normal use is unmetered, with a cap that exists only to stop abuse. Ordinary research, backtesting and agent use will not reach it. Systematic bulk extraction of the dataset, or reselling the output as your own data feed, will — and is not permitted.
• We can suspend a key for abuse, non-payment, or use that endangers the service. Where it is not urgent, we will tell you first.

6. Payment and cancellation

Plans are monthly, in US dollars, paid in advance via Stripe. A key is valid for the month it was paid for. There is no automatic renewal and no stored payment method on our side: you get a reminder, and if you do not pay, the key simply stops working.

Either side can end the arrangement at the end of any month, for any reason, with no penalty. If the service was materially broken during a month you paid for, ask and you get that month back.

7. Third parties and content

Quant Data is independent research and is not affiliated with, endorsed by, or connected to Al Brooks, David Weis, Thomas Bulkowski, any exchange, broker or data vendor. Those names are used only to identify the published ideas being tested and measured, which is commentary and research.

We publish derived metrics computed by us. We do not redistribute raw market quotes or full option chains, and you should not attempt to reconstruct them from our output.

Text, figures and code on this site belong to Quant Data. You may quote our published statistics with attribution and a link. You may use API output freely inside your own analysis, research, trading and applications. You may not republish the datasets themselves as a competing feed.

8. Changes

Endpoints may change as the research does. Breaking changes to a paid endpoint will be emailed to active key holders before they land. These terms may be updated; the date below tells you when, and continuing to use the service after a change means accepting it.

9. Law

These terms are governed by the laws of England and Wales, and the courts of England and Wales have jurisdiction. If you are a consumer, this does not remove any protection you have under the mandatory law of your own country of residence.

10. Contact

quantdata@agentmail.to for anything, including disputes. Talking to us first is faster than everything else.

Last updated July 2026.