Soybeans, and soy derivatives have large amounts of natural estrogens. Interestingly enough, soy sauce is not a major source of phytoestrogens. Flaxseed, pulses, citrus fruits, wheat, licorice, alfalfa, fennel and celery also have fairly large amounts of natural estrogens. List of Sources: 1.
Market cap (as it is commonly referred to) is equal to the stock price multiplied by the number of shares outstanding. For example, a stock with a $5 stock price and 10 million shares outstanding/trading is worth $50 million ($5 x 10 million).
For this reason, not too many indexes are weighted on price. Most indexes weigh companies based on market capitalization. If a company's market cap is $1,000,000 and the value of all stocks in the index is $100,000,000, then the company would be worth 1% of the index. These types of systems are made possible by computers - most are calculated to the minute, so they are very accurate reflections of the market.