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. And under 157, especially on a closing basis a sell signal.
Dow (DIA) 258.00 support. With 260.30 the last swing high in December before the crash.
Nasdaq (QQQ) 171.99 the 200-DMA now the level to hold.