Netflix serves as a powerful example of why relative strength matters, as SIA practitioners captured the stock near the post-split $50 level and rode its leadership all the way to $130 while it remained in the SIA favored zone for more than two years. Even as fundamentals shifted and the stock began to lag the market, declining relative strength signaled the change early, giving advisors the objective data needed to rotate into stronger opportunities. This transition from leadership to underperformance highlights how relative strength provides a disciplined, real-time framework for staying with winners and stepping aside when the evidence turns.