> For the complete documentation index, see [llms.txt](https://docs.callput.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.callput.app/markets.md).

# Markets

## Live markets and availability

Callput lists live option markets from its canonical market feed. BTC and ETH are live crypto option markets. TSLA, QQQ, SPY, EWY, NVDA, COIN, SKHY, SPCX, and MU have synthetic stock or ETF option rows when the feed lists active expiries. Check availability before every trade.

### Current market status

| Category                        | Symbols                                         | Status           | What to check                 |
| ------------------------------- | ----------------------------------------------- | ---------------- | ----------------------------- |
| Crypto options                  | BTC, ETH                                        | Live when listed | Expiry and option rows        |
| Synthetic stock and ETF options | TSLA, QQQ, SPY, EWY, NVDA, COIN, SKHY, SPCX, MU | Feed-driven      | Active expiry and option rows |
| Reference-only indices          | CRCL, SAMSUNG                                   | Not tradable     | No option expiries or chains  |

The [canonical market feed](https://app-data-base.s3.ap-southeast-1.amazonaws.com/market-data.json) determines current availability. A symbol name alone does not prove tradability.

### What you trade

Callput stock and ETF options are synthetic onchain options. They reference market prices but do not represent broker-listed options, securities accounts, shares, ETFs, tokenized stocks, dividends, voting rights, issuer ownership, or physical delivery of the referenced asset.

See [live scope and markets](/live-scope-and-markets.md) and [pricing and execution](/traders/pricing-and-execution.md).