The S&P 500 (SPX) is struggling to hold support, with Rachel Dashiell (@CharlesSchwab) warning of steeper selling should it break. She takes investors through the key levels to watch in Friday's trading action. In the 10-year Treasury yields, Rachel points out that old support may become new resistance with a recent move below 5%. She tells investors to just mind the possibility of a failed breakdown. Rachel then turns to Alphabet (GOOGL) and the extensive reversal in its previous technical trends.