Wall Street has been pretty volatile in March. Though Wall Street commenced the month on a decent note, huge selloffs were witnessed at the end of the month. Recessionary fears in the United States, acute slowdown jitters in the Euro zone, Brexit drama, and overvaluation concerns (after a robust first-quarter rally) resulted in steep selloffs.Overall, SPDR S&P 500 ETF Trust SPY and Invesco QQQ Trust QQQ added about 1% and 2.9% in March while SPDR Dow Jones Industrial Average ETF DIA declined about 0.9%.Let’s take a look at the winners and losers of this period.Best-Performing ETFsIndiaThough India ETFs commenced the year on a soft note, it gained steam in March following the wave of optimism around re-election of prime minister Narendra Modi’s party in the upcoming general elections, and hopes of further economic reforms and easing of monetary policy. Additionally, the Fed’s dovish outlook on future rates hike and growth projection cuts for 2019, and the European Central Bank’s dull outlook on Eurozone’s economy has renewed optimism in this emerging market, inviting large inflows into the country (read: Here's Why India ETFs Are Soaring).Consequently, India ETFs are the clear winners of March with small-caps leading the rally. Columbia India Small Cap Fund SCIN, VanEck Vectors India Small-Cap Index ETF SCIF and iShares MSCI India Small-Cap ETF SMIN added about 17.6%, 15.7% and 13.3%, respectively in March.China Real Estate & Consumer Staples China stocks have been moderate in the month probably owing to the delay in a definite US-China trade deal. iShares China Large-Cap ETF FXI has, in fact, lost about 0.2% while Xtrackers Harvest CSI 500 China-A Shares Small Cap ETF ASHS has gained about 6.4% in the past one month (as of Mar 28, 2019).However, two areas – real estate and consumer staples – soared. Consumer staples due to its non-cyclical nature offer decent returns even if the economy is slowing.Investors should note that the country trimmed its economic growth forecast for 2019 in the range of 6-6.5%, down from a target of 6.5% over the past two years. But at the same time, the government rolled out a set of stimulus and reformative measures. It announced a cut in the value-added tax (VAT) for the manufacturing sector to 13% from 16%, and VAT for the transport and construction sectors to 9% from 10%. The government will also cut the social security fees paid by companies to 16%.In the past one year, China cut commercial lenders’ reserve requirement ratio (RRR) five times to make borrowing easier for small and private firms with the latest 100 bps cut being enacted in January (read: Don't Fear China's Weaker Growth, Play It With These ETFs).All these measures are likely to have bolstered Global X MSCI China Real Estate ETF CHIR (up 12.8%) and Global X MSCI China Consumer Staples ETF CHIS (up 9.8%)U.S. Long-term Treasury Bond funds benefited a great deal from a dovish Fed and recession jitters at the end of the month. The Fed, in fact, cut GDP growth forecasts in its March meeting. This along with disappointing manufacturing data from the Euro zone complicated the scenario and triggered a heavy selloff in equities at March-end. Investors rushed to safe-havens like long-term U.S. treasuries consequently benefiting PIMCO 25+ Year Zero Coupon U.S. Treasury Index Exchange-Traded Fund ZROZ (up 7.7%) (read: Best-Performing Treasury ETFs Amid Market Selloff).Worst-Performing ETFsTurkeyTurkey’s benchmark stock index has suffered terribly in the final week of March as lira plunged ahead of a key election on Sunday. Key interest rate is hovering around an all-time high. iShares MSCI Turkey ETF TUR lost around 15.8% in March.BrazilBrazil stocks suffered massively owing to tensions around the reforms proposed by president Jair Bolsonaro. In fact, Bolsonaro has been accused of not doing enough to enact the pension reform. iShares MSCI Brazil Capped ETF EWZ lost about 7.9% in March.Regional Banking An inverted yield curve at the end of March and recessionary fears weighed on regional banking stocks. Flattening yield curve is negative for financial stocks. Since banks borrow money at short-term rates and lend capital at long-term rates, a lower long-term rate does not bode well. SPDR S&P Regional Banking ETF KRE lost 8.9% in March (read: Fear an Inverted Yield Curve? Short Financial Stocks With ETFs).Want key ETF info delivered straight to your inbox?Zacks’ free Fund Newsletter will brief you on top news and analysis, as well as top-performing ETFs, each week. Get it free >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report SPDR Dow Jones Industrial Average ETF (DIA): ETF Research Reports iShares China Large-Cap ETF (FXI): ETF Research Reports iShares MSCI India Small-Cap ETF (SMIN): ETF Research Reports Xtrackers Harvest CSI 500 China A-Shares Small Cap ETF (ASHS): ETF Research Reports iShares MSCI Turkey ETF (TUR): ETF Research Reports Columbia India Small Cap ETF (SCIN): ETF Research Reports iShares MSCI Brazil ETF (EWZ): ETF Research Reports SPDR S&P Regional Banking ETF (KRE): ETF Research Reports VanEck Vectors India Small-Cap Index ETF (SCIF): ETF Research Reports PIMCO 25+ Year Zero Coupon U.S. Treasury Index ETF (ZROZ): ETF Research Reports Invesco QQQ (QQQ): ETF Research Reports SPDR S&P 500 ETF (SPY): ETF Research Reports Global X MSCI China Real Estate ETF (CHIR): ETF Research Reports Global X MSCI China Consumer Staples ETF (CHIS): ETF Research Reports To read this article on Zacks.com click here. Zacks Investment Research Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report