/**
 * [Historical Prices](https://iexcloud.io/docs/api/#historical-prices)
 * Returns adjusted and unadjusted historical data for up to 15 years. Useful for building charts.
 */
export declare const historicalPrices: (symbol: string, range?: string, date?: string, params?: Partial<HistoricalPriceParams>) => Promise<readonly HistoricalPrice[]>;
export interface HistoricalPrice {
    /** Formatted as YYYY-MM-DD */
    readonly date: Date;
    /** Adjusted data for historical dates. Split adjusted only. */
    readonly high?: number;
    /** Adjusted data for historical dates. Split adjusted only. */
    readonly low?: number;
    /** Adjusted data for historical dates. Split adjusted only. */
    readonly volume?: number;
    /** Adjusted data for historical dates. Split adjusted only. */
    readonly open?: number;
    /** Adjusted data for historical dates. Split adjusted only. */
    readonly close?: number;
    /** Unadjusted data for historical dates. */
    readonly uHigh?: number;
    /** Unadjusted data for historical dates. */
    readonly uLow?: number;
    /** Unadjusted data for historical dates. */
    readonly uVolume?: number;
    /** Unadjusted data for historical dates. */
    readonly uOpen?: number;
    /** Unadjusted data for historical dates. */
    readonly uClose?: number;
    /** Percent change of each interval relative to first value. Useful for comparing multiple stocks. */
    readonly changeOverTime?: number;
    /** A human readable format of the date depending on the range. */
    readonly label?: string;
    /** Change from previous trading day. */
    readonly change?: number;
    /** Change percent from previous trading day. */
    readonly changePercent?: number;
}
export interface HistoricalPriceParams {
    /** Will return adjusted data only with keys `date`, `close`, and `volume`. */
    readonly chartCloseOnly?: boolean;
    /**  Used only when range is `date` to return OHLCV data instead of minute bar data. */
    readonly chartByDay?: boolean;
    /**  If true, runs a polyline simplification using the Douglas-Peucker algorithm. This is useful if plotting sparkline charts. */
    readonly chartSimplify?: boolean;
    /**  If passed, chart data will return every Nth element as defined by `chartInterval`. */
    readonly chartInterval?: number;
    /** If true, `changeOverTime` and `marketChangeOverTime` will be relative to previous day close instead of the first value. */
    readonly changeFromClose?: boolean;
    /** If passed, chart data will return the last N elements from the time period defined by the range parameter. */
    readonly chartLast?: number;
    /** Same format as the path parameter. This can be used for batch calls. */
    readonly range?: string;
    /** Formatted as YYYYMMDD. This can be used for batch calls when range is 1d or date. */
    readonly exactDate?: string;
    /** Can be `asc` or `desc` to sort results by date. Defaults to `desc`. */
    readonly sort?: string;
    /** If true, current trading day data is appended. */
    readonly includeToday?: boolean;
    readonly [key: string]: any;
}