OpenBB-finance/OpenBB · warning · EmptyDataError

No data found.

Error message

No data found.

What it means

EmptyDataError raised by DeribitFuturesHistorical.fetch_data when the OHLC extraction loop produced zero rows for all requested symbols. It signals the request succeeded syntactically but the exchange returned no candles inside the given date/interval window (or every per-symbol fetch silently produced nothing).

Source

Thrown at openbb_platform/providers/deribit/openbb_deribit/models/futures_historical.py:139

        symbols = query.symbol.split(",")
        results: list = []

        for symbol in symbols:
            try:
                data = await get_ohlc_data(
                    symbol=symbol,
                    interval=query.interval,
                    start_date=query.start_date,
                    end_date=query.end_date,
                )
                if data:
                    results.extend(data)
            except OpenBBError as e:
                raise e from e

        if not results:
            raise EmptyDataError("No data found.")

        return sorted(results, key=lambda x: x["date"])

    @staticmethod
    def transform_data(
        query: DeribitFuturesHistoricalQueryParams, data: list, **kwargs: Any
    ) -> list[DeribitFuturesHistoricalData]:
        """Transform the data."""
        symbols = query.symbol.split(",")
        if len(symbols) == 1:
            results: list[DeribitFuturesHistoricalData] = []
            for d in data:
                _ = d.pop("symbol", None)
                results.append(DeribitFuturesHistoricalData.model_validate(d))
            return [DeribitFuturesHistoricalData.model_validate(d) for d in data]
        return [DeribitFuturesHistoricalData.model_validate(d) for d in data]

View on GitHub (pinned to 3e071fcc2c)

Solutions

1. Widen or correct the start_date/end_date range to overlap the instrument's actual trading history (Deribit only returns data from creation_timestamp onward).
2. Verify the instrument trades on Deribit by fetching obb.derivatives.futures.instruments(provider='deribit') and checking volume.
3. Catch EmptyDataError as an expected 'no rows' outcome in batch jobs instead of treating it as a crash.
4. For very long ranges, split requests into smaller chunks — per-window fetch errors are swallowed and can leave results empty.

Example fix

# before
data = obb.derivatives.futures.historical(symbol="BTC-PERPETUAL", start_date="2015-01-01", provider="deribit")

# after
from openbb_core.provider.utils.errors import EmptyDataError
try:
    data = obb.derivatives.futures.historical(symbol="BTC-PERPETUAL", start_date="2020-01-01", end_date="2024-01-01", provider="deribit")
except EmptyDataError:
    data = None

# sanity-check the window overlaps the instrument's life
from datetime import datetime, timezone
from openbb_deribit.utils.helpers import get_instruments
inst = {d["instrument_name"]: d["creation_timestamp"] for d in asyncio.run(get_instruments("all", "future"))}
created = datetime.fromtimestamp(inst["BTC-PERPETUAL"] / 1000, tz=timezone.utc)
assert start_date > created and end_date > start_date, "range outside instrument lifetime"

from openbb_core.provider.utils.errors import EmptyDataError
try:
    data = fetch_historical(sym, start, end)
except EmptyDataError:
    data = []  # expected for ranges with no candles; log and continue

When it happens

Trigger: Requesting a date range entirely outside the instrument's lifetime (before listing or in the future), a start_date==end_date window with no candles, an interval/window combination Deribit rejects per-window, or a symbol whose data only exists on a different instrument name.

Common situations: Backfill jobs running over weekends on illiquid contracts with no trades, date arithmetic bugs producing 1970 or far-future dates, or using a perpetual alias after the instrument was rolled.

Related errors

• Invalid Deribit symbol: {symbol}. Supported symbols are: {',
• Invalid symbol: {s}. Valid symbols are: {all_symbols}
• No data found for the given symbol(s).
• There was an error with the request and it was returned empt
• All requests returned empty with no error messages.

AI-assisted analysis of OpenBB-finance/OpenBB@3e071fcc2c (2026-08-14). Data as JSON: /api/errors/8be50d1108322670. Report an issue: GitHub.