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 6: 52-Week Highs: Making today's year-high list were Oshkosh ( OSK), which was upgraded to buy at Keybanc, and Annaly Capital Management ( NLY). 52-Week Lows: U.S. Natural Gas ( UNG) dipped to a new low of $12.31 today before closing down 4.2% for the day at $12.56. Callaway Golf ( ELY) sank to $4.66 before closing down 1.8% for the day at $4.80. Biggest % Gainers: One of Monday's largest percentage gainers was American Dairy ( ADY), which rose $3.34, or 9.1%, to close at $39.95. Biggest % Losers: Losing big today was Spectrum Pharmaceuticals ( SPPI), which closed down $1.10, or 16.9%, at $5.40 after approval of its blood cancer drug was delayed. Rising on Unusual Volume: Oshkosh and American Dairy both made this list as well today, as volume increased in Oshkosh by almost 300% and in American Dairy by 160%. Unusual Options Activity: There was unusually high option volume in Freeport-McMoRan ( FCX), XTO Energy ( XTO) and Merck ( MRK) today, among others. Analyst Upgrades: Stifel Nicolaus upgraded American Express ( AXP) to hold from sell, while Goldman Sachs upgraded Nordstrom ( JWN) to neutral from sell. Analyst Downgrades: Today's downgrades included one from Credit Suisse to neutral from outperform on FPL Group ( FPL). See all of Today's Lists here, including TheStreet.com TV Videos.