OpenBB-finance/OpenBB · error · ValueError

Supplied data must be daily intervals and have more than one

Error message

Supplied data must be daily intervals and have more than one year of back data to calculate the most recent day in the time series.

What it means

RelativeRotation requires more than 252 daily observations for 'price' and 'volume' studies (one year of trading days); it raises when len(symbols_data) <= 252 so the RRG math (relative strength ratios, momentum) has enough history.

Source

Thrown at openbb_platform/extensions/technical/openbb_technical/relative_rotation.py:301

            if "date" in df.columns:
                df.set_index("date", inplace=True)

        if df.empty:
            raise ValueError(
                "Data must be a list of Data objects or a DataFrame with a 'date' column."
            )

        if "symbol" in df.columns:
            df = df.pivot(columns="symbol", values=target_col)

        if benchmark not in df.columns:
            raise RuntimeError("The benchmark symbol was not found in the data.")

        benchmark_data = df.pop(benchmark).to_frame()
        symbols_data = df

        if len(symbols_data) <= 252 and study in ["price", "volume"]:  # type: ignore
            raise ValueError(
                "Supplied data must be daily intervals and have more than one year of back data to calculate"
                " the most recent day in the time series."
            )

        if study == "volatility" and len(symbols_data) <= 504:  # type: ignore
            raise ValueError(
                "Supplied data must be daily intervals and have more than two years of back data to calculate"
                " the most recent day in the time series as a volatility study."
            )
        self.symbols = df.columns.to_list()
        self.benchmark = benchmark
        self.study = study
        self.long_period = long_period
        self.short_period = short_period
        self.window = window
        self.trading_periods = trading_periods
        self.symbols_data = symbols_data  # type: ignore
        self.benchmark_data = benchmark_data  # type: ignore

View on GitHub (pinned to 3e071fcc2c)

Solutions

1. Fetch more than one year of daily data (limit > 252, e.g. 500, or start_date over a year back).
2. Ensure the data is daily-interval; resample or refetch if weekly/monthly.
3. Skip symbols with < 1 year of history.
4. Note the strict inequality: exactly 252 rows still fails.

Example fix

# before
data = obb.equity.price.historical(symbols, limit=252)
RelativeRotation(data=data, benchmark="SPY", study="price")

# after
data = obb.equity.price.historical(symbols, limit=500)
RelativeRotation(data=data, benchmark="SPY", study="price")

n = len(symbols_data)
assert n > 252, f"price/volume RRG needs > 252 daily bars, have {n}"

def enough_rrg_history(df, study: str) -> bool:
    return len(df) > (504 if study == "volatility" else 252)

try:
    rrg = RelativeRotation(data=data, benchmark="SPY", study=study)
except ValueError as e:
    if "more than one year" in str(e):
        data = fetch_history(symbols, limit=500)
        rrg = RelativeRotation(data=data, benchmark="SPY", study=study)
    else:
        raise

When it happens

Trigger: Calling RelativeRotation with study='price' or 'volume' on a DataFrame with 252 or fewer rows, e.g. limit=252 in the history fetch or one year of calendar data missing trading days.

Common situations: Default provider limits capping history at 252 or fewer rows; weekly data (52 rows/year) supplied where daily is required; recent listings with under a year of history.

Related errors

• Supplied data must be daily intervals and have more than two
• Data must be a list of Data objects or a DataFrame with a 'd
• The benchmark symbol was not found in the data.
• This analysis requires at least 3 items in the dataset.
• No data found to plot.

AI-assisted analysis of OpenBB-finance/OpenBB@3e071fcc2c (2026-08-14). Data as JSON: /api/errors/ed7b0941734c23e7. Report an issue: GitHub.