1. Gabelli Funds launched Keeley Dividend ETF targeting small- and mid-cap dividend payers. 2. The ETF arrives amid high S&P 500 levels and expected Fed rate cuts. 3. SMID-cap valuations are more attractive compared to large-cap equities, drawing interest. 4. S&P 500 closed at a new all-time high, with positive momentum indicators noted. 5. New stocks added to S&P 500 could drive fund manager buying activity.