builder.setMinimumPriceIncrement(Decimal.newBuilder()
.setMantissa(tickSize.mantissa())
.setExponent(tickSize.exponent()));
final Fraction frac = inst.displayFraction();
builder.setDisplayBase((int) frac.base());
builder.setDisplayExponent(frac.exponent());
builder.setExchangeCode(inst.exchangeCode());
return InstrumentFactory.instrumentState(builder.buildPartial());