The major market indexes gained more than 2% each on Thursday, Oct. 30. Here’s a list of some stocks that were the biggest winners and losers in the trading session.

Winners:

Office Depot (ODP)

The stock ended the day at $3.12, up $1.02 -- 48.57% -- on plans to close North American stores to cut costs after posting worse than expected third-quarter losses.

IntercontinentalExchange (ICE)

Shares gained $25.21, or 40.80%, to $87 as the company reported that third-quarter profit rose 12% with a net income of $75 million.

Manitowoc (MTW)

The crane manufacturer ended at $10.67, up $2.19 or 25.21%, on optimism for future because its expects the market to calm.

Legg Mason (LM)

Investors had feared a greater fall in assets, so sent the stock up $3.84, or 22.70%, to $20.76. The company plans to cut one-third of its work force.

General Growth Properties (GGP)

The company rose to $3.59, gaining 60 cents, or 20.07%, as the appointment of new executives to help with financial restructuring.

Losers:

Hartford Insurance Group (HIG)

Shares closed at $9.62, falling $10.24, or 51.56%, after reporting third-quarter losses of $2.6 billion on Wednesday evening.

Assurant (AIZ)

The company saw its stock decline $8.42, or nearly 25%, to $25.35 after it reported losses of $111 million amid skyrocketing hurricane-related claims.

Cigna (CI)

Earnings were down more than 50% from the same period in 2007, causing the stock to fall to $15.58, down $4.27, or 21.5%.

Prudential (PRU)

The insurer reported poor earnings and withdrew projections for the rest of the year, then fell to $28.87, down $6.38, or 18%.

Symantec (SYMC)

Shares tumbled $2.36, or 15.9%, to $12.20 as forward earnings guidance missed analysts’ expectations.