private final static String GENERIC_TICKS = "104, 106"; // Hist Vol, Imp Vol
private UnderlyingData underlyingData = null;
private List<Contract> optionContracts = new ArrayList<Contract>();
public Example2(String symbol, String minImpVol, String volRatioLimit) {
this.underlyingData = new UnderlyingData(symbol, Double.parseDouble(minImpVol), Double.parseDouble(volRatioLimit));
}