BigDecimal change = new BigDecimal(random.nextGaussian() * (oldTick.getPrice().doubleValue() / 1000), FOUR_DIGITS_PRECISION);
TickBuilder newTick = new TickBuilder(oldTick.getSymbol())
.time(new Date())
.price(oldTick.getPrice().add(change))
.change(change);
return newTick.toTick();
}
private static final MathContext FOUR_DIGITS_PRECISION = new MathContext(4);
private Tick generateBootstrapTick(String symbol) {