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 7: 52-Week Highs: Schering-Plough ( SGP) hit a 52-week high of $25.45 before closing down 5 cents for the day at $25.10. Also making the list was Oshkosh ( OSK), which rose to $22.52 before closing down 4 cents for the day at $21.44. 52-Week Lows: Myriad Genetics ( MYGN) sank to a new low today of $24.70. The stock closed down 63 cents for the day at $24.79. Biggest % Gainers: One of today's biggest percentage gainers was Rick's Caberet ( RICK), which surged $1.03, or 17.9%, to close at $6.78 after it was upgraded by Merriman. GenCorp ( GY) gained 14.7% to $2.11 after reporting a 59% second-quarter profit increase. Biggest % Losers: Hansen Medical ( HNSN) plunged 33.4% to $3.15 on Tuesday, and Yingli ( YGE) lost 10% to $11.21. Unusual Options Activity: Stocks seeing unusual options activity on Tuesday included ConocoPhillips ( COP), AT&T ( T) and Target ( TGT). Analyst Upgrades: Goldman Sachs upgraded Kohl's ( KSS) to buy and increased its price target on the stock to $50 from $44. Keefe Bruyette & Woods upgraded Keycorp ( KEY) to outperform with an $8 price target. See all of Today's Lists here, including Rising on Unusual Volume and Analyst Downgrades.