Filed Pursuant to Rule 424(b)(3)
Registration No. 333-155800

April 2011 Performance Update

The Frontier Fund Supplement Dated April 30, 2011 to Prospectus Dated April 30, 2011.

The Frontier Fund Class 3

T H E    F RO N T I E R    F U N D’ S    G O A L : To provide you – the investor – with a managed futures product that, over the long term, provides attractive returns, reduces volatility, and improves the overall performance of your investment portfolio.

April performance for the various Series of The Frontier Fund is detailed below:*

The Frontier Fund Class 3	April 30, 2011	April 30, 2011	NAV / Unit
	MTD	YTD
Balanced Series-3a	1.16%	5.09%		$140.46
Long Only Commodity Series-3	3.20%	9.56%		$113.81
Long/Short Commodity Series-3	5.28%	18.52%		$181.64
Managed Futures Index Series-3	4.92%	2.90%		$130.41

Additional information, including monthly rates of return, concerning the aforementioned Series and the Trading Advisor(s) is contained in the Prospectus and the respective Series Appendix to the Prospectus.

* The above table sets forth the actual performance for the Class and Series as of April 30, 2011. Actual gross trading performance (gross realized and unrealized gain/loss before deduction for trading commissions and fees, management fees, any other expense, and before addition of interest income) is adjusted for the trading expenses, management fees, initial service fees, on-going service fees, and interest income of the applicable Series.

THIS INSERT MUST BE ACCOMPANIED OR PRECEDED BY THE CURRENT PROSPECTUS OF THE FRONTIER FUND

PAST PERFORMANCE IS NOT INDICATIVE OF FUTURE RESULTS

THE FRONTIER FUND BALANCED SERIES - 3a

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

April 30, 2011

(Unaudited)

							Current Period
INCOME
Realized trading gain/(loss)							$	(632,938.46	)
Unrealized trading gain/(loss)								693,785.03
Less: commissions								(3,343.25	)
Less: FCM fees								(1,268.09	)
Foreign currency gain/(loss)								9,224.53
Interest income								2,126.94
Total Income								67,586.70
EXPENSES
Trading Fee								5,997.68
Management fees								1,937.23
Incentive fees								19,144.07
Total Expenses								27,078.98
Net Income (Loss)							$	40,507.72
STATEMENT OF CHANGES IN NET ASSET VALUE
	Units			Dollars			$’s per unit
Net Asset Value, end of prior month		26,383.49480		$	3,663,383.43			138.85
Current month additions		—			—
Current month redemptions		(962.58803	)		(133,171.10	)
Net Income (loss) for current month					40,507.72
Net Asset Value, end of current month		25,420.90677		$	3,570,720.05			140.46
		Monthly rate of return						1.16	%

To the best of my knowledge and belief, the information

contained in this statement is accurate and complete

/s/    S. Brent Bales

S. Brent Bales, Chief Accounting Officer of the Managing Owner

Equinox Fund Management LLC

1775 Sherman Street, Suite 2500

Denver, Colorado 80203

On Behalf of the Frontier Fund - Balanced Series 3a

THE FRONTIER FUND LONG ONLY COMMODITY SERIES - 3

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

April 30, 2011

(Unaudited)

					Current Period
INCOME
Realized trading gain/(loss)					$	283.52
Unrealized trading gain/(loss)						2.51
Less: commissions						—
Less: FCM fees						(3.56	)
Foreign currency gain/(loss)						—
Interest income						15.50
Total Income						297.97
EXPENSES
Management fees						9.95
Incentive fees
Total Expenses						9.95
Net Income (Loss)					$	288.02
STATEMENT OF CHANGES IN NET ASSET VALUE
	Units		Dollars		$’s per unit
Net Asset Value, end of prior month		52.25380	$	5,762.89		110.29
Current month additions		39.12826		4,349.48
Current month redemptions		—		—
Net Income (loss) for current month				288.02
Net Asset Value, end of current month		91.38206	$	10,400.39		113.81
		Monthly rate of return				3.20	%

To the best of my knowledge and belief, the information

contained in this statement is accurate and complete

/s/    S. Brent Bales

S. Brent Bales, Chief Accounting Officer of the Managing Owner

Equinox Fund Management LLC

1775 Sherman Street, Suite 2500

Denver, Colorado 80203

On Behalf of the Frontier Fund - Long Only Commodity Series 3

THE FRONTIER FUND LONG/SHORT COMMODITY SERIES - 3

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

April 30, 2011

(Unaudited)

							Current Period
INCOME
Realized trading gain/(loss)							$	(2,707,499.14	)
Unrealized trading gain/(loss)								4,290,810.64
Less: commissions								(9,646.42	)
Less: FCM fees								(10,161.63	)
Foreign currency gain/(loss)								(4,650.99	)
Interest income								33,715.65
Total Income								1,592,568.11
EXPENSES
Management fees								99,921.16
Incentive fees								195,075.05
Total Expenses								294,996.21
Net Income (Loss)							$	1,297,571.90
STATEMENT OF CHANGES IN NET ASSET VALUE
	Units			Dollars			$’s per unit
Net Asset Value, end of prior month		153,724.26122		$	26,521,708.98			172.53
Current month additions		7,388.10013			1,310,228.63
Current month redemptions		(22,037.47966	)		(3,867,829.01	)
Net Income (loss) for current month					1,297,571.90
Net Asset Value, end of current month		139,074.88169		$	25,261,680.50			181.64
		Monthly rate of return						5.28	%

To the best of my knowledge and belief, the information

contained in this statement is accurate and complete

/s/    S. Brent Bales

S. Brent Bales, Chief Accounting Officer of the Managing Owner

Equinox Fund Management LLC

1775 Sherman Street, Suite 2500

Denver, Colorado 80203

On Behalf of the Frontier Fund - Long/Short Commodity Series 3

THE FRONTIER FUND MANAGED FUTURES INDEX SERIES - 3

STATEMENT OF INCOME (LOSS)

FOR THE MONTH ENDED

April 30, 2011

(Unaudited)

					Current Period
INCOME
Realized trading gain/(loss)					$	(1,394.33	)
Unrealized trading gain/(loss)						19,282.48
Less: commissions						(60.62	)
Less: FCM fees						(144.94	)
Foreign currency gain/(loss)						61.07
Interest income						578.09
Total Income						18,321.75
EXPENSES
Management fees						650.69
Incentive fees						—
Total Expenses						650.69
Net Income (Loss)					$	17,671.06
STATEMENT OF CHANGES IN NET ASSET VALUE
	Units		Dollars		$’s per unit
Net Asset Value, end of prior month		2,864.05159	$	355,985.22		124.29
Current month additions		46.90063		5,950.39
Current month redemptions		—		—
Net Income (loss) for current month				17,671.06
Net Asset Value, end of current month		2,910.95222	$	379,606.73		130.41
		Monthly rate of return				4.92	%

To the best of my knowledge and belief, the information

contained in this statement is accurate and complete

/s/    S. Brent Bales

S. Brent Bales, Chief Accounting Officer of the Managing Owner

Equinox Fund Management LLC

1775 Sherman Street, Suite 2500

Denver, Colorado 80203

On Behalf of the Frontier Fund - Managed Futures Index Series 3