Charles Schwab's Rachel Dashiell discusses why she uses "log scale" analysis of stocks and how it applies to the market's recent volatility. She uses this analysis for the S&P 500 (SPX) and makes the case that the index's recent uptrend will sustain pending any significant macro pullbacks. A reversion in the U.S. dollar is another factor Rachel sees benefitting equities. On the 10-year Treasury yield, she explains the "warning flag" at recent resistance of 3-year highs. Rachel also discusses crude oil prices.