# Market Chameleon

Earnings-move statistics and option strategy screeners in a browser. No API.

*https://stockmarketstack.com/tools/market-chameleon · Stock Market Data APIs*

## Facts

### At a glance

| Field | Value |
| --- | --- |
| Vendor | Market Chameleon |
| Category | Stock Market Data APIs |
| Job | options |
| Website | https://marketchameleon.com |
| Pricing model | subscription |
| Free tier | true |
| Open source | false |
| Licence | none |
| Self-hosted | false |
| Tested hands-on | false |
| Last updated | 2026-09-14 |

### Pricing

| Tier | USD | Period |
| --- | --- | --- |
| Registered | 0 USD | month |
| Premium | 99 USD | month |

### Coverage

| Field | Value |
| --- | --- |
| Asset classes | stocks, etf, options, indices |
| Markets | us |
| Works outside the US | false |
| Data latency | delayed |
| Platforms | web |
| AI features | none |

### Interfaces

| Field | Value |
| --- | --- |
| API | false |
| Webhooks | false |
| Scripting | none |
| Python | false |
| Spreadsheet add-in | false |
| MCP server | false |
| Export | csv |

### Capabilities

Yes: charting, screening, scanning, backtesting, alerts, news, options_analysis

No: automation, live_trading, paper_trading, portfolio_tracking, broker_import, tax_reporting

*Verified: pricing 2026-09-14; capabilities 2026-09-14; coverage 2026-09-14.*

## What it is

Market Chameleon is a website, not a data service. You open it in a browser, set filters on one of
roughly thirty screeners, and read a table. There is no REST API — the vendor's developer page says
so in as many words — and scraping is against the terms of use and, the same page says, closely
monitored and enforced.

What it is bought for is the earnings statistics. For a given ticker it holds up to ten years of
earnings dates with the option market's implied move next to the move that actually happened, so
you can see whether that name has historically been priced too high or too low into the print.
Around that sit implied volatility rankings, unusual option volume, order-flow sentiment, and
screeners for every standard structure — verticals, calendars, butterflies, iron condors,
straddles, covered calls, naked puts.

The split against its nearest neighbour here is clean. [ORATS](https://stockmarketstack.com/tools/orats) sells a cleaned
volatility surface for you to compute against; Market Chameleon has done the computing and will not
hand over the inputs.

## Pricing

Free registration is permanent and real — watchlists, three daily newsletters and basic option
volume views. Premium is $99/month after a 7-day trial and unlocks the rest.

The four-tier structure most reviews still quote — Stock Trader $39, Options Trader $69, Earnings
Trader $79 — is dead markup. It sits in the vendor's own comparison page inside an HTML comment,
along with the whole feature matrix, and renders nothing. One plan is what is actually for sale. A
yearly discount exists but carries no published number; the page says to email support.

The bulk data feeds are priced apart from the site: earnings, option trades, dividend forecast,
dividend guidance and dividend announcement, $500/month each on an internal-use licence, plus
one-time archives of option trades at $2,500 per calendar year for 2016 through 2022.

## Data & coverage

Everything is delayed 15 minutes, on every page, with no real-time tier to buy. US stocks, ETFs,
closed-end funds, index options and single-name options — no non-US listings and no futures.

History depth varies by report, and this is where the marketing is thinnest. Ten years of earnings
dates, three years of stock prices, one year of implied volatility charts, twenty trading days of
VWAP — and sixty trading days of option trade detail on Premium. The large-trades screener is
shallower still: ten trading days on Premium, and without it the current day only and nothing under
200 contracts. Past sixty days the yearly archives are the only route, and they stop at 2022, so
2023 onward cannot be bought at any price.

## Integrations

CSV download and nothing else, capped at 25 downloads per rolling 24 hours on Premium and 2 during
the trial. The bulk feeds arrive as zipped CSV over ShareFile, FTP or WebDAV and can be automated
from any language; personal, internal and external-redistribution licences exist, and the $500
figure is the internal-use rate. No Python client, no spreadsheet add-in, no MCP server, no
webhooks, no broker connection.

## Limitations

- No API at any price. The feeds are files on a schedule, not a query endpoint.
- 15-minute delay throughout. Nothing here is a live options feed.
- Sixty trading days of option trade detail, ten on the large-trades screener. Older than that
  needs a $2,500 yearly archive, and those stop at 2022.
- 25 CSV downloads per rolling 24 hours, so the export is for spot checks, not for a dataset.
- Several things here read like calls. Market Leaders, Market Laggers and Momentum Stocks are
  values in a dropdown on the strategy screeners, not reports, and each carries its formula on the
  page — the 25 best and 25 worst S&P 500 holdings by weight combined with six-month price change,
  and stocks stepping up off six-month lows in each of the last three months, two months, one month
  and two weeks. Featured Trade Ideas goes furthest: named option spreads on a chosen underlying,
  paywalled behind an "Unlock Trade Idea" button. It is still screener output, ranked by theoretical
  value against market price and by historical win rate over a stated lookback, with no thesis and
  no author. The site-wide footer states the data is informational and educational only and not
  investment advice.
- No portfolio tracking, no broker import, no order entry.
- Redistribution of the feeds is a licence negotiated by email, not a published rate.

## Alternatives

[ORATS](https://stockmarketstack.com/tools/orats) if you want the surface as data rather than as a page, and
[Cboe DataShop](https://stockmarketstack.com/tools/cboe-datashop) for raw historical options files from the exchange itself.
[Unusual Whales](https://stockmarketstack.com/tools/unusual-whales) covers the flow side with an actual API. The rest of the
field is in [market data APIs](https://stockmarketstack.com/categories/market-data-apis).

## FAQ

### Does Market Chameleon have an API?

No. The vendor's own developer page states that a Web/REST API is not available, and that automated harvesting of the site is against the terms of use and is enforced. The only programmatic route is the bulk CSV data feeds, which are a separate purchase at $500/month each.

### Is Market Chameleon data real-time?

No. Every page carries a 15-minute delay notice and there is no real-time tier to buy. If you need live options quotes this is the wrong product.

### What happened to the $39, $69 and $79 plans?

They are no longer sold. The Stock Trader, Options Trader and Earnings Trader tiers still sit in the markup of the vendor's own comparison page, but inside an HTML comment, so they do not render. The live page sells one plan at $99/month. Many third-party reviews still quote the old four.

### How far back does the earnings history go?

Up to ten years of earnings dates per ticker, which is the deepest thing on the site. Most other history is much shallower - three years of stock prices, one year of implied volatility charts, and sixty trading days of option trade detail.

## Also worth comparing

- [ORATS](https://stockmarketstack.com/tools/orats.md) — Smoothed options greeks and IV surfaces over REST, end-of-day back to 2007.
- [Unusual Whales](https://stockmarketstack.com/tools/unusual-whales.md) — US options tape, dark pool prints and congressional trades over one REST API.
- [Cboe DataShop](https://stockmarketstack.com/tools/cboe-datashop.md) — Per-file OPRA options history from the exchange, priced by dataset, date and symbol.
- [AlgoSeek](https://stockmarketstack.com/tools/algoseek.md) — Lossless SIP, OPRA and CME tick history with published per-asset-class lease pricing.
- [Alpaca Market Data](https://stockmarketstack.com/tools/alpaca-market-data.md) — Free IEX data forever, full SIP and OPRA for a flat $99 a month.
- [Alpha Vantage](https://stockmarketstack.com/tools/alpha-vantage.md) — The API most people's first script talks to — free key, wide coverage, hard rate limits.