S&P 500 (SPY) 280.40 the last December swing high before the crash. 276.00 is the important support to hold on a closing basis
Russell 2000 (IWM) 157.03 is the 50-WMA and 157.88 the 200-DMA. November 8th high 157.90. There’s your resistance. However, with the close today over 156.53 (Wednesday’s low), IWM failed to have a reversal topping pattern. So, game still on for now
Dow (DIA) 255.50 support. With 260.30 the last swing high in December before the crash.
Nasdaq (QQQ) 172.02 the 200-DMA now pivotal. 170.50 support