October 30, 2015: Here are four stocks trading with heavy volume among 91 equities making new 52-week lows today.

SolarCity Corp. (NASDAQ: SCTY) dropped more than 26% on Friday to post a new 52-week low of $28.11 against a high of $63.79. The stock closed at $38.07 on Thursday night. Volume was nearly 10 times the daily average of around 2.9 million shares traded. The company posted weak earnings and lowered guidance on Thursday after markets closed.

CONSOL Energy Inc. (NYSE: CNX) posted a new low on Friday. Shares dropped about 5.8% to a low of $6.38 from Thursday’s closing price of $6.77. The stock’s 52-week high is $42.26. Volume was about 50% above the daily average of around 7.6 million. The company reported weak results earlier this week.

Century Aluminum Co. (NASDAQ: CENX) dropped about 26% on Friday to post a new 52-week low of $3.19 against a 52-week high of $31.75. The stock closed at $4.29 on Thursday night. Volume was about 3 times the daily average of around 3.3 million shares traded. The company missed profit estimates this morning.

Southwestern Energy Co. (NYSE: SWN) dropped around 4.9% on Friday to post a new 52-week low at $10.25 after closing at $10.78 on Thursday. The stock’s 52-week high is $37.26. Share volume was about equal to the daily average of around 11.7 million. The company had no specific news today.

ALSO READ: 10 Most Profitable Companies in the World