The iPath Dow Jones-UBS Coffee Total Return ETN (NYSEArca: JO) was the worst-performing fund Tuesday, July 24, giving up 5.73 percent of its value on renewed concerns a global economic slowdown would hurt aggregate demand.

Another coffee strategy on the bottom performers list was the iPath Pure Beta Coffee ETN (NYSEArca: CAFE), which registered a 5.45 percent loss on the day, as coffee futures for nearby delivery slid Tuesday to their lowest level in more than three weeks. The coffee market seemed more concerned about global demand than excited about condition woes in South America.

Indeed, worries about the health of the global economy remained the driving force behind many markets. The latest tidbit came from Greece, which now appears to be unable to pay off its debt, and might have to do some more debt restructuring ahead.

It's perhaps unsurprising to see funds tapping into Europe again among the day’s worst performers. The iShares MSCI Spain Index Fund (NYSEArca: EWP) and the iShares MSCI Italy Index Fund (NYSEArca: EWI) each gave up roughly 4 percent Tuesday.

The Dow Jones industrial average tallied another day of triple-digit losses—its third in a row—ending Tuesday 104.14 points lower, or 0.82 percent, at 12,617.32.

On the flip side, natural gas funds delivered some of Tuesday’s strongest returns, as natural gas futures prices rallied to a seven-month high on forecasts for more excessive heat in the U.S. The hot weather is seen as a supportive element for natural gas demand.

As the NYMEX Natural gas for August delivery gained 2.3 percent on the day, the iPath Dow Jones-UBS Natural Gas Total Return ETN (NYSEArca: GAZ) rose 2.1 percent.

The Teucrium Natural Gas Fund (NYSEArca: NAGS) and a pair of United States Commodity Funds’ natural gas ETFs also made the top gainers list.

Top 10 1-Day Performers, Excluding Leverage/Inverse Funds and <1,000 Shares Traded

Disclaimer: All data as of 6 a.m. Eastern time the date the article is published. Data is believed to be accurate; however, transient market data is often subject to subsequent revision and correction by the exchanges.