1. UnitedHealth Group combines a leading health benefits platform with a diversified health services business (Optum), creating a strong competitive moat; 2. Its massive scale enables sustainable cost advantages and superior negotiating power with healthcare providers; 3. The company consistently returns substantial free cash flow to shareholders through growing dividends and share buybacks.

1. Grab Holdings operates a Southeast Asian 'super app' integrating ride-hailing, food delivery, and fintech services; 2. Despite a high P/E ratio of 150, the company recently achieved profitability, signaling strong future earnings growth; 3. The author's firsthand experience in Southeast Asia highlights Grab's dominance over competitors, justifying its valuation amid long-term growth prospects.

1. Grab Holdings has strengthened its competitive advantage by transitioning from inelastic demand for its services to demonstrating a strong moat. 2. The strong moat is supported by high synergy between product offerings, allowing GRAB to grow consistently while reducing marketing and incentive expenditures. 3. Despite improved fundamentals, GRAB's valuation remains high compared to UBER, suggesting patience and a potential buy at the $3.75 support level.

1. D-Wave has a significant first-mover advantage with commercially useful quantum annealing technology; 2. Recent capital raise reduces forecast dilution and improves margin outlook; 3. D-Wave's first quantum computer sale and record bookings suggest exceeding revenue forecasts.

1. Valve is banning the use of high-end keyboard features like Razer Huntsman's 'Snap Tap' in Counter-Strike 2 to maintain fair competition. 2. These features automate multiple button presses, giving players an unfair advantage in movement skills. 3. Valve has banned all forms of automation in the game, and players suspected of using such features may be kicked from matches.

1. PayPal's stock has declined due to Apple's introduction of competing BNPL services, but the market reaction may be overblown. 2. PayPal's recent enhancements and strong financial health suggest a potential rebound. 3. The EU ruling requiring Apple to open NFC technology to third-party providers could benefit PayPal in Europe.