Investors yanked $29.5 billion out of global equity funds in the week that ended August 26, the biggest single-week outflow on record as markets around the world over went into meltdown mode, according to data from Citi.
On a regional basis, U.S. funds suffered the highest level of outflows at $12.3 billion, followed by Asia funds, which saw $4.9 billion in redemptions. Citi's records go back to 2000.
European funds, which broke their chain of 14 weeks of inflows, witnessed $3.6 billion in outflows for the week.
Concerns around the outlook for the Chinese economy and jitters around the U.S. Federal Reserve's impending rate hike have sent global markets into a tailspin over the past week.
The MSCI World Index and MSCI Emerging Market Index both slid over 7 percent between August 19 and August 26.
China, the market at the heart of the global selloff, saw losses of a far higher magnitude.
The notoriously volatile benchmark tumbled 22 percent over this period, leading to outflows of $1.2 billion from China and Greater China funds during the week.
Correction: This story has been updated to reflect that Asia funds saw $4.9 billion in redemptions in the week that ended August 26.