After the market close, Stockpickr updates a series of portfolios called Today's Lists with information from that trading day. It's a useful tool for getting a quick picture of how the market moved that day.If you are a Stockpickr member and have a Today's List stock in one of your portfolios, you'll receive an email alert after that list is updated. You can become a Stockpickr member here. Here's a sampling of what made Today's Lists today, July 23: 52-Week Highs: Stocks hitting new highs today including Ford ( F), Amazon ( AMZN), Bed Bath & Beyond ( BBBY) and Whole Foods ( WFMI). Biggest % Gainers: Somaxon Pharmaceuticals ( SOMX) nearly doubled today, rising $1.68, or 94.4%, to close at $3.46. Medarex ( MEDX) gained $7.49, or 89.2%, to close at $15.89. Biggest % Losers: Spartan Motors ( SPAR) closed down $2.02, or 20.5%, at $7.86. Rising on Unusual Volume: Chipotle ( CMG) rose 3.3% to $91.71 on a 203% increase in volume. Unusual Options Activity: Stocks experiencing unusually high options volume today included Palm ( PALM) and Disney ( DIS). Analyst Upgrades: Goldman Sachs upgraded Ann Taylor ( ANN) to buy from neutral and doubled its price target on the stock to $13 from $6.50. Bank of America/Merrill Lynch upgraded eBay ( EBAY) to neutral and raised its target on the stock to $22 from $16. Meanwhile, Goldman also raised its target on eBay, to $20.50, and Credit Suisse raised its to $20. See all of Today's Lists here, including 52-Week Lows and Analyst Downgrades.