The market has been on a volatile ride since its July highs, though the S&P 500 Index ($SPX) is now just 2% away from revisiting those all-time records. At the same time, some previously high-flying growth stocks have undergone significantly deeper corrections – creating potential buy opportunities for long-term investors with healthy risk appetites. In particular, many growth stocks now have more down-to-earth valuations following recent pullbacks, creating some discounted opportunities for investors to participate in growth stocks that have a track record of yielding robust returns. While di…