public static ExternalId generateEquityOptionTicker(final String underlyingTicker, final Expiry expiry, final OptionType optionType, final double strike) {
ArgumentChecker.notNull(underlyingTicker, "underlyingTicker");
ArgumentChecker.notNull(expiry, "expiry");
ArgumentChecker.notNull(optionType, "optionType");
Pair<String, String> tickerMarketSectorPair = splitTickerAtMarketSector(underlyingTicker);
DateTimeFormatter expiryFormatter = DateTimeFormatter.ofPattern("MM/dd/yy");
DecimalFormat strikeFormat = new DecimalFormat("0.###");
String strikeString = strikeFormat.format(strike);
StringBuilder sb = new StringBuilder();
sb.append(tickerMarketSectorPair.getFirst())
.append(' ')