CORRECTED - CORRECTED-UPDATE 1-MF Global sees Q4 loss after rogue wheat trad

(Corrects period in headline and first and third paragraphs to fourth quarter from first quarter)

(Recasts; adds details, background, share movement) April 18 (Reuters) - MF Global Ltd (MF.N: Quote, Profile, Research), one of the world's largest futures and options brokers, said it sees higher fiscal fourth-quarter net revenue but expects to post a loss mainly due to a bad debt provision.

The company said it expects a pre-tax loss of $55 million to $65 million for the quarter ended March 31. On an adjusted basis, it sees a pre-tax profit of $75 million to $85 million, compared with a $66.9 million profit in the year-ago quarter.

MF Global said it expects net revenue for the fourth quarter of $440 million to $460 million, up 17 percent to 21 percent from $376.6 million last year.

Analysts on average had forecast total revenue of $1.44 billion in the quarter, according to Reuters Estimates. MF's estimate of net revenue excludes interest and transaction-based expenses, which typically amount to more than two-thirds of total revenue.

On Feb. 28, the company said it was taking a bad debt provision of $141.5 million as a result of unauthorized trading by a broker in the volatile Chicago wheat market.

MF Global blamed the loss on one trader making unauthorized deals. The Commodity Futures Trading Commission, which regulates the U.S. futures industry, said the incident appeared to be isolated.

MF Global said its undrawn committed liquidity facilities were $1.53 billion at March 31, up from $1.4 billion announced on March 26.

Shares of the company were trading up $1.56 at $13.11 in trading before the bell after closing at $11.55 Thursday on the New York Stock Exchange. (Reporting by Supantha Mukherjee in Bangalore; editing by Mike Miller)