/**
 * FINRA Reg SHO daily short-sale volume file URL for a given venue and date.
 */
export declare function buildRegShoUrl(venue: string, dateYYYYMMDD: string): string;
export interface RawRegShoRow {
    date: string;
    symbol: string;
    shortVolume: number;
    shortExemptVolume: number;
    totalVolume: number;
}
export declare function parseRegShoFile(text: string): Map<string, RawRegShoRow>;
/**
 * Generate the most recent N business days ending yesterday (Reg SHO daily
 * files are typically published next business day).
 */
export declare function recentBusinessDays(now: Date, count: number): string[];
export interface DailyShortVolumeRow {
    date: string;
    shortVolume: number;
    totalVolume: number;
    shortRatio: number;
}
/**
 * Fetch one ticker's daily short-sale volume for the most recent N business
 * days, aggregating across all venues by SUMMING short volume and total volume,
 * then computing the ratio from the sums.
 */
export declare function getDailyShortVolume(ticker: string, daysBack: number, now?: Date): Promise<DailyShortVolumeRow[]>;