ETFs With the Biggest Ratings Changes

Here are lists of the five most-improved and five most-deteriorated ETF ratings from Feb. 29 to March 31.

One month does not make a trend, but investors are continually asking, "What have you done for me -- or to me -- lately?" With each additional month of data, TheStreet.com Ratings updates its ranking scorecard, assigning new ratings to each fund.

The most-improved bond fund this month is the PowerShares Dynamic Mid Cap Growth Portfolio(PWJ Quote). This fund bottomed in March and appears to be building back toward last year's highs.

The strongest holdings for March include Kirby(KEX Quote), up 26.44%; GameStop(GME Quote), up 22.07%; Perrigo(PRGO Quote), up 12.90%; and Landstar Systems(LSTR Quote).

Vanguard European ETF(VGK Quote) ranks in second place on our most-improved list. At A-, this fund has been upgraded to buy from hold. The positive return of 1.31% for March added the long run outperformance of its ETF peers. One of the fund's largest holdings, HSBC Holdings(HBC Quote), gained 11.02% during the month of March.

Most Improved ETF Ratings From February to March
Fund (Ticker) New Rating	Feb Rating	1 Month Return %	Objective
PowerShares Dynamic Mid Cap Growth (PWJ) B	D	-1.49	Growth - Domestic
Vanguard European ETF (VGK) A-	C-	1.31	Non-US Equity
Vanguard Pacific ETF (VPL) B+	D+	-1.92	Non-US Equity
PowerShares Dynamic Large Cap Value (PWV) B	C-	-0.50	Equity Income
PowerShares Wilder Clean Energy (PBW) C-	E	-5.41	Sector - Energy/Natural Res
Source: TheStreet.com Ratings & Bloomberg

Four of the five funds on the most-deteriorated list were downgraded to hold from buy. The fifth fund just missed the buy cutoff in February before dropping to a much lower hold rating in March.

The largest fall in March ETF ratings was experienced by the WisdomTree International Energy Sector Fund(DKA Quote). This fund is highly volatile. Over the last year, it surged nearly 20%, lost all its gains, rallied again to more than 20%, crashed to zero return and is back up to a one-year return of 21.44% through Friday April 18. If it stays on the current skyrocketing trajectory, an upgrade back to buy looks likely.

The second fund on our most-deteriorated list is the Market Vectors-Environmental Services ETF(EVX Quote). One-month declines of 26.78% from Shaw Group(SGR Quote), 26.13% from Basin Water(BWTR Quote) and 15.82% from Metalico(MEA Quote) took their toll on this fund.

Most Deteriorated ETF Ratings From February to March
Fund (Ticker) New Rating	Feb Rating	1 Month Return %	Objective
WisdomTree International Energy (DKA) C+	A-	-2.14	Sector - Energy/Natural Res
Market Vectors Environment Ind ETF (EVX) C	B	-4.61	Equity Income
PowerShares DB G10 Currency Harvest (DBV) C	B-	-4.17	Equity Income
HealthShares Diagnostic (HHD) C+	B	-2.43	Sector - Health/Biotechnology
PowerShares FTSE RAFI Basic Mat (PRFM) C	C+	-2.88	Equity Income
Source: TheStreet.com Ratings & Bloomberg

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