Around $304 billion dollars in new cash has been placed in the funds over the preceding three weeks.
DoubleLine Capital founder Jeff Gundlach sees the Fed cutting rates "substantially" soon.
Investors are also driving up expectations for how high the central bank might push policy rates early in 2023.
Yield curves are often seen as a potential indicator of recessionary risk when inverted.
So-called inversions of the yield curve are regarded as a potential harbinger of recession.
The latest MLIV Pulse survey indicates investors see tech stocks and cryptocurrencies as vulnerable.
Participants in the latest MLIV Pulse survey reckon there's more pain to come.
Traders are pricing in a further 225 basis points of interest-rate hikes by the end of the year.
Two-year yields climbed 10 basis points to 2.44%.
Usually benign 10-year Treasury yields have experienced 25-basis-point swings in recent days.