What the site does
Every page here answers a mechanical question. What does this contract oblige? What does this filter remove? Where does this order go, and when does ownership actually move? Those questions have answers that can be stated, checked and, where arithmetic is involved, computed in front of the reader. Round Lot is built entirely from that class of question, and the terms those answers lean on are defined once in the glossary.
The site is published at spotlightgrowth.com. The brand and the domain are not the same string, which is deliberate and worth stating plainly rather than leaving as a puzzle.
What it refuses to do
It does not recommend securities, forecast prices, rank platforms, or publish coverage of individual companies. Those are not gaps waiting to be filled; each is excluded because it would require a judgment about the reader's circumstances that no general reference can make. A page explaining that a cash-secured put obliges you to buy 100 shares at the strike is describing a contractual fact. A page telling you that selling one is a good idea this month is doing something else, and this site does not do it. How that position is paid for, and by whom, is set out on the editorial policy page.
How pages are researched and checked
Mechanical claims are written from primary sources: exchange and clearing-house documentation, regulatory rule text and investor guidance, and companies' own published filings and schedules. Where a page describes a published framework, whether the Piotroski criteria or the Altman coefficients, the original definition governs, and any deviation is called a variant rather than presented as the framework itself.
Worked examples use constructed figures chosen to make the arithmetic legible: a strike at 50 and a premium at 3 rather than 47.82 and 2.61. The arithmetic is real and reproducible, the payoff calculator will run it for any strike and premium you give it, while the prices are not quotes and are not meant to resemble any particular security. Platform figures carry a retrieval date because commission schedules and approval tiers change, and a dated figure is honest in a way an undated one is not.
The limits, stated up front
This is a general reference written for a US market context. It cannot know your circumstances, your jurisdiction or your tax position, and nothing on it is personalized advice. Rules change, schedules change, and any page is only as current as its last revision. Where a decision has money attached, the authoritative source is the provider, the filing or the rule text, not a reference site, however carefully it has been written.
The most useful thing a reader can do with this site is treat it as a way of knowing which question to ask, and then ask it of the primary source. That is what a reference is for.
Questions about this site
Is this an official or regulated source?
No. Round Lot is an independent editorial reference. It is not a broker, not an adviser, not an exchange and not a regulator, and nothing here is a recommendation to buy or sell anything. Where a fact has an authoritative source, whether an exchange rule book, a regulator, a clearing house or a company filing, that source is the one to rely on.
Who writes it?
A small editorial team writing under standing bylines, with the areas each one covers stated on their page. Bylines exist so that readers can see which pages share an author and hold them to a consistent standard, not to imply individual credentials beyond what is stated.
How is it funded?
There are no affiliate links, no referral arrangements, no sponsored placements and no paid inclusion anywhere on the site. Platform names appear because they are relevant, and no platform has paid to be named or compared.
How are corrections handled?
Corrections are made on the page rather than silently, and a page that has been materially corrected says so. Anything mechanical here can be checked against a primary source, and being told when a page is wrong is genuinely useful.