SEDOL is a security identifier used to distinguish one stock or security issue from another, especially in UK-origin market data and global investment databases. If you work with equities, portfolio holdings, corporate actions, settlement records, or research systems, understanding SEDOL helps prevent costly mix-ups between similar-looking securities. This tutorial explains what SEDOL means, how its 7-character structure works, where it is used, and how it differs from ISINs, tickers, and CUSIPs.

Rule 506(c) is a U.S. securities-law exemption that lets an issuer publicly market a private securities offering without going through full SEC registration. The trade-off is strict: every actual buyer must be an accredited investor, and the issuer must take reasonable steps to verify that status. For founders, funds, analysts, and investors, Rule 506(c) is one of the clearest examples of how capital-raising freedom and compliance discipline move together.

Rule 506(b) is one of the most important U.S. private offering exemptions. It allows companies, funds, and deal sponsors to raise unlimited capital without registering the offering with the SEC, but only if they keep the offering private, avoid general solicitation, and follow investor, disclosure, and filing rules. For founders, investors, analysts, and finance students, understanding Rule 506(b) is essential because a small compliance error can create major legal and economic consequences.

Rule 144 is one of the most important U.S. securities-law rules for selling restricted or control stock into the public market. It tells founders, employees, executives, early investors, brokers, and transfer agents when unregistered shares can be resold without a new SEC registration statement. In plain English, Rule 144 is a safe-harbor checklist for making certain privately acquired shares marketable—if the seller meets the rule’s conditions. Because it sits at the intersection of issuance, disclosure, liquidity, and compliance, it matters to both stock-market professionals and serious investors.

A **Round Lot** is the standard trading unit for shares, most commonly **100 shares in U.S. equities**. The idea sounds simple, but it affects order sizing, quote visibility, execution, shareholder records, and some corporate actions. If you understand round lots, you can more easily distinguish them from **odd lots**, **mixed lots**, and venue-specific trading units.

A roadshow is a series of presentations and meetings in which a company and its underwriters explain an upcoming securities offering to potential investors. In stock markets, it is most closely associated with IPOs, follow-on offerings, and other capital-raising transactions, where management uses the roadshow to build investor interest, answer questions, and help the market discover a workable price. Understanding the roadshow matters because it sits at the intersection of valuation, disclosure, investor psychology, compliance, and issuance strategy.

Rights Sale is the sale or transfer of a shareholder’s entitlement to buy new shares in a rights offering. In simple terms, if a company offers discounted shares to existing owners, a shareholder who does not want to invest more money may be able to sell that opportunity instead of letting it go to waste. Understanding a rights sale helps investors avoid accidental loss of value and helps companies raise capital in a fairer, more orderly way.

A **Rights Placement** is a capital-raising structure used in stock markets when a company wants to raise equity while still giving existing shareholders priority. In simple terms, shareholders get the first chance to buy new shares, and any unsubscribed portion may then be placed with other investors or supported by an underwriter or backstop investor. It matters because it affects dilution, pricing, fairness, control, and the success of the capital raise.

A **Rights Offering** is a way a company raises new equity by giving its existing shareholders the first chance to buy additional shares, usually at a set price and often at a discount to the market price. It is one of the clearest examples of capital raising that tries to balance a company’s funding needs with shareholder protection. For investors, the key ideas are choice, pricing, and dilution: you can usually exercise the right, sell it if allowed, or ignore it and accept dilution.

A rights issue is a way for a company to raise fresh equity by giving existing shareholders the first chance to buy new shares, usually at a fixed price and often at a discount to the current market price. It is an important corporate action because it can help a company strengthen its finances while protecting shareholder priority. For investors, a rights issue creates a decision: subscribe, sell the rights if allowed, buy more rights, or do nothing and accept dilution.

Rights Allotment is the step in a rights issue where a company actually allocates new shares to eligible shareholders or to holders of transferable rights. In simple terms, it is how the company turns a “right to buy” into issued shares after applications and payments are processed. Understanding rights allotment helps investors judge dilution, calculate entitlements, and read capital-raising announcements with confidence.

A reverse stock split is a corporate action in which a company combines multiple existing shares into fewer new shares, raising the share price proportionally while reducing the share count. In theory, it does not automatically change the company’s total market value or an investor’s ownership percentage. It matters because companies often use a reverse stock split to meet exchange listing rules, clean up an over-diluted share structure, or change how the market perceives a low-priced stock.

Revenue guidance is a company’s communicated expectation for future sales over a coming quarter, year, or other period. In stock markets, it matters because investors do not price companies only on what they earned yesterday, but on what management believes revenue will look like next. Understanding revenue guidance helps you read earnings releases, assess management credibility, compare analyst forecasts, and spot disclosure risks.

Retail Ownership describes how much of a company’s stock is held by ordinary individual investors rather than institutions, insiders, or strategic holders. It is easy to mention but harder to interpret correctly, because the same number can signal healthy public participation, speculative crowding, or weak institutional interest depending on the situation. This tutorial explains what Retail Ownership means, how it is measured, where it appears in stock analysis and disclosures, and how to use it intelligently.

Restricted Stock Units, or RSUs, are a common form of stock-based compensation that give a person the right to receive company shares or cash in the future if certain conditions are met. They matter because they affect employee pay, company dilution, accounting expense, taxes, and investor analysis. If you work at a listed company, startup, or study equity compensation, understanding RSUs helps you judge what the award is really worth and what risks come with it.

Restricted Stock Unit, or RSU, is one of the most common forms of stock-based compensation used by public companies and increasingly by private companies. An RSU gives a person the right to receive company shares, or sometimes cash equal to those shares, in the future once stated conditions are met. If you work for a company, invest in one, analyze financial statements, or study equity compensation, understanding RSUs is essential because they affect pay, taxes, dilution, accounting, and shareholder value.

Regulation S is a U.S. securities-law framework that lets issuers sell securities outside the United States without SEC registration, if the transaction is genuinely offshore and follows specific conditions. In capital markets, it is one of the most important tools for cross-border equity and debt issuance. If you read offering memoranda, research reports, or global deal terms, you will often see a security described as a “Reg S” tranche or “Regulation S” security.