Charles Schwab's Rachel Dashiell offers what she considers a complicated technical picture for the S&P 500 (SPX) as it and the Nasdaq-100 (NDX) plunge on incredible AI volatility. She explains, the technicals beneath the surface conflict with expanding market breadth heading into Thursday's trading session. As for the Russell 2000 (RUT), Rachel says she needs to see evidence of follow-through in the small-cap index after it tested notable support. She then looks into key support and resistance levels in crude oil futures.