> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hyperprop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Continuous futures

> Discover continuous chart symbols and keep executions tied to dated contracts.

A continuous symbol such as `MNQ1!` follows a futures market through contract
expiries. A dated symbol such as `MNQU6` always returns its own prices.

## Back-adjusted charts

Continuous charts on web shift older contracts' prices by default to reduce
gaps when the chart switches contracts. The current contract's prices stay
unchanged.

Open **Chart Settings → Chart → Continuous contracts** and change **Adjust
prices for contract changes**. This saved preference applies to all continuous
charts. Turn it off to view the original, unadjusted history.

Each mode keeps its own saved drawings. Drawings saved on an unadjusted
continuous chart remain available when price adjustment is off.

Back-adjusted history still follows the contracts that were active at each
point in time. It can therefore differ from a chart showing only `MNQZ6`
throughout the same period. Orders, positions, and P\&L use actual dated-contract
prices in either mode.

## Discover symbols

Use authenticated `GET /md/continuous` to discover available symbols and their
current `underlyingSymbol`. Only advertise an alias returned by this endpoint.

```bash theme={null}
curl 'https://api.hyperprop.com/md/continuous' \
  -H 'Authorization: Bearer YOUR_ACCESS_TOKEN'
```

Each entry identifies the continuous `symbol`, `root`, current
`underlyingSymbol`, `underlyingSince`, `rollPolicy`, `adjustment`, `historyStart`,
and `revision`. `rollPolicy` is `cme-session-roll`; the base `adjustment` is `none`.
`supportedAdjustments` lists the available history modes, and
`defaultAdjustment` identifies the recommended chart mode, `backward-difference`.
`underlyingSince` and `historyStart` use Unix seconds. Availability still depends
on the chart interval and your market-data access.

## Pending rollovers

The current underlying changes only during a regular CME closure. A volume
change during an open session can nominate the next contract without changing
the current selection. US equity index mini and micro counterparts follow the
same contract-month policy, including the customary quarterly rollover.

An entry can include an optional `pendingRoll`:

| Field              | Meaning                                                                |
| ------------------ | ---------------------------------------------------------------------- |
| `underlyingSymbol` | Proposed next dated contract; not the current underlying.              |
| `reason`           | `equity-calendar`, `intraday-volume`, or `session-volume`.             |
| `applyAfter`       | Planned earliest application time during the closure, in Unix seconds. |
| `reopensAt`        | Following CME session opening time, in Unix seconds.                   |

Display this as an upcoming change. Keep using the entry's top-level
`underlyingSymbol` until a refreshed response confirms the new contract. A
pending plan can change, be cancelled, or be deferred to a later closure. Its
timestamps do not confirm activation, and its absence does not confirm a roll.

If the incoming contract is not ready in time, the change waits for another
closure. A missed rollover does not switch the underlying after reopening or
rewrite an earlier open session's chart.

## Request history

Pass the continuous symbol to `/md/historical` or `/md/historical/latest`.
Set `adjustment=backward-difference` to request back-adjusted prices:

```bash theme={null}
curl 'https://api.hyperprop.com/md/historical?symbol=MNQ1%21&interval=1h&days_back=365&adjustment=backward-difference' \
  -H 'Authorization: Bearer YOUR_ACCESS_TOKEN'
```

Continuous responses include `resolvedSymbol`, `seriesRevision`, and `adjustment`.
Verify the returned mode and keep caches separate for each mode. Refresh the
symbol mapping when it changes, discard responses for a previous mapping, and
reload the chart before combining the new history with live updates.

For API compatibility, omitting `adjustment` still returns unadjusted prices,
as does `adjustment=none`. Dated symbols always return their own unadjusted
history. If the reference prices needed for adjustment are unavailable, an
adjusted request fails instead of returning unadjusted prices under that mode.

## Live data and orders

Subscribe to live data using the current dated `underlyingSymbol`. A live candle
can update the continuous chart only when its entire interval is at or after
`underlyingSince`; reload stitched history for a candle that crosses that time.
Submit new orders using the dated contract, and re-check that mapping when
preparing an order. Never submit a pending target merely because `applyAfter`
has passed.
Continuous symbols are chart aliases, not executable instruments.

Changing the selected chart does not transfer existing orders or positions to
another contract. Keep their original contract identifiers when displaying,
modifying, or closing them, including when adding or editing stop-loss and
take-profit brackets.

For example, an order placed through `MNQ1!` while its underlying is `MNQU6`
creates an `MNQU6` order or position. After the continuous chart rolls to
`MNQZ6`, that existing trade, its brackets, and its close remain on `MNQU6`.
Only new orders prepared from the updated continuous selection use `MNQZ6`.


## Related topics

- [Discover ready continuous futures for the caller's licensed](/market-data-api/historical/discover-ready-continuous-futures-for-the-callers-licensed.md)
- [Changelog](/changelog.md)
- [GET /historical - Fetch historical OHLC bars](/market-data-api/historical/get-historical--fetch-historical-ohlc-bars.md)
- [Get all order books (best bid/ask)](/market-data-api/order-book/get-all-order-books-best-bidask.md)
- [Get current OHLC bars](/market-data-api/ohlc/get-current-ohlc-bars.md)