Getty Images Despite market uncertainties, investors can focus on large, strong-momentum ETFs with proven upward trends. Sometimes, what's working on Wall Street can change quickly, turning last month's laggards into this month's leaders. However, investors have spent much of this year waiting for the other shoe to drop. Despite a steady stream of concerning headlines, the market has shown remarkable resilience, with the S&P 500 gaining roughly 10% year to date.