The NASDAQ-100 Index is a modified market capitalization-weighted index. The value of the Index equals the aggregate value of the Index share weights, also known as the Index Shares, of each of the Index Securities multiplied by each security’s Last Sale Price1 , and divided by the divisor of the Index. 
The formula for the divisor is as follows: (Market Value after Adjustments/Market Value before Adjustments) X Divisor before Adjustments Three versions of the Index are calculated – a price return index, a total return index and a notional net total return index. • The price return index (NASDAQ: NDX) is ordinarily calculated without regard to cash dividends on Index Securities. • The total return index (NASDAQ: XNDX) reinvests cash dividends on the ex-date. • The notional net total return index (NASDAQ: XNDXNNR) is designed to reflect a net total return index reinvesting 70% of cash dividends, and factors in a deduction based on an indicative 30% tax rate.
不是高增长的公司都能穿越周期，而是纳斯达克100的选股方法和权重选择的方法，让他年化高。