DIA ▼ -0.7% - State Street SPDR Dow Jones Industrial Average ETF Trust $DIA etf below 50 D sma area The Dow Jones ETF fell below its 50-day simple moving average, a technical level that often prompts momentum-based selling as traders exit positions that break key support levels. $DIA declined 0.7% as the index-tracking fund tested this widely-watched technical threshold. 09-SEP-2026 11:21 AM ET