Investing in USA
Exchange(s), regular trading hours, the securities regulator, and the local gold-buying convention — sourced and dated. No live quotes, no index levels, no recommendations.
Markets
Currency: USD · Region: North America
New York Stock Exchange (NYSE)
MIC: XNYS · Currency: USD · Timezone: America/New_York
| Days | Regular hours (local time) |
|---|---|
| Mon, Tue, Wed, Thu, Fri | 09:30–16:00 |
Source: https://www.nyse.com/ · checked 2026-09-26. Regular session hours; public holidays not modelled.
Nasdaq Stock Market (Nasdaq)
MIC: XNAS · Currency: USD · Timezone: America/New_York
| Days | Regular hours (local time) |
|---|---|
| Mon, Tue, Wed, Thu, Fri | 09:30–16:00 |
Source: https://www.nasdaq.com/ · checked 2026-09-26. Regular session hours; public holidays not modelled.
Main index
- S&P 500 (S&P 500) — S&P Dow Jones Indices (source)
- Dow Jones Industrial Average (Dow) — S&P Dow Jones Indices (source)
- Nasdaq Composite (Nasdaq Composite) — Nasdaq, Inc. (source)
See live open/closed status for this and other exchanges on Market hours.
Regulator
U.S. Securities and Exchange Commission (SEC) — https://www.sec.gov/
Gold & silver convention
Typical local unit(s): troy ounce, Gram (g). Typical purity: 10K, 14K, 18K, 24K / .999+ (fine).
Retail gold jewelry is typically sold in 10K/14K/18K karat alloys (24K for investment bullion), with karat stamping regulated by the FTC's Jewelry Guides (16 CFR Part 23). (Source: Federal Trade Commission / eCFR)
Use the gold and silver reference pages to convert between units and price a given weight/purity — they support every unit and purity listed above.
Good to know
- Most retail brokerage accounts route orders through NYSE and Nasdaq, with the SEC as the principal federal securities regulator overseeing both exchanges. (Source: SEC.gov)
- Tax-advantaged retail investing accounts (401(k), IRA) are widely used alongside standard taxable brokerage accounts. (Source: SEC/Investor.gov)
fin·calc tools for USA
Frequently Asked Questions
What stock exchanges does USA have?
New York Stock Exchange and Nasdaq Stock Market
Who regulates investing in USA?
U.S. Securities and Exchange Commission (SEC)