UnitedHealth (UNH) shares have "significantly underperformed" the broader S&P 500 (SPX) so far in 2025, says Rick Ducat. He examines the UNH chart following news that Warren Buffett's Berkshire Hathaway (BRK/B) has taken a stake in the company. Rick highlights the downtrend signals and current levels of potential upside resistance for bulls to watch. Later, Tom White provides an example options trade using a call vertical strategy. Tom explains the bullish nature of this trade and why he chose a Sep. 19 expiration.