These fitness and apparel giants are down, but not out.It's been a rough year for Nike (NKE -0.25%) and Lululemon Athletica (LULU 0.06%) investors, with both stocks selling off sharply. Shares of Nike are down about 25% year to date while Lululemon has fared worse, declining by around 50% in 2024.The two fitness brands have key differences but are pressured by shifting consumer spending dynamics and disappointing results.That being said, volatility can sometimes present an opportunity for investors to pick ...