The 10 biggest 52-week drawdowns in the S&P 500

📺 Trade Desk -77% $TTD Ad budgets are moving into Meta, Google and Amazon. Their AI tools squeeze out independent ad platforms.

🏢 CoStar -67% $CSGP A frozen US housing market and a costly Homes com fight with Zillow slowed new sales.

💳 Fiserv -65% $FISV Banks are leaving legacy core banking software. Old fintech infrastructure keeps losing clients.

💉 Insulet -61% $PODD The push into type 2 diabetes stalled. New patients quit the pump in the first months.

📡 Charter -59% $CHTR Cable internet keeps losing homes to fiber, 5G home internet and Starlink.

🧾 Intuit -58% $INTU AI makes tax and bookkeeping help nearly free, so customers stop paying TurboTax prices.

🫀 Boston Scientific -57% $BSX Its hottest heart devices hit a ceiling as Medtronic, J&J and Abbott caught up. A cyberattack in August made it worse.

📱 AppLovin -56% $APP The market stopped paying a premium for AI ad tech. A small miss plus the threat of Meta entering its market erased the premium.

📊 Fair Isaac -54% $FICO Washington ended its mortgage score monopoly. Every Fannie and Freddie lender can now use VantageScore.

☁️ Oracle -54% $ORCL The market stopped rewarding AI data centers built with debt, and Oracle borrowed more than anyone.