---

public setSymbol = (symbol: string, options?: SetWithHistoryOptions): void => {
  this.setInstrument(symbol, symbol, options);
};

public setInstrument(
  symbol: string,
  symbolName = symbol,
  options?: SetWithHistoryOptions,
): void {
  this.setWithHistory('symbol', this.symbol$, symbol, options);

  if (this.symbolName$.value !== symbolName) {
    this.symbolName$.next(symbolName);
  }
}