No one can answer that with any certainty. Past performance is not an indicator of future performance. Last years hot stocks are often this years duds. A year ago AMD was a hot stock with a 500% gain in stock price. That was followed up by a near 50% drop in the price but it has recovered some but still 30-40% below it’s highs. What the best growth stocks for 2018 will be I can only guess. Ask in December what they were and anyone can give you good answers.