Two senior members of the Invesco Australian equities team have left the fund manager, resulting in scrutiny of its funds by major research houses.
Morningstar and Standard and Poor's (S&P) are analysing the ratings of Invesco Australia funds following the departure of Australian equities head Rohan Walsh and portfolio manager Luke Sinclair.
"This is a significant change to the fund, not only because of Rohan Walsh's position as head of Australian equities, but because the departure includes Luke Sinclair, who has worked with Walsh since 1999, together forming the senior portfolio management team," S&P fund analyst Greg Barr said.
S&P had placed the four-star-rated Australian share funds on hold following the departures and would review the rating once it had an opportunity to meet and review the new investment team, Barr said.
Morningstar analyst Tim Murphy said: "This is a major blow to Invesco and we will be releasing an updated recommendation shortly."
The funds affected by S&P's ratings action are the Wholesale Australian Share Fund and the Australian Share Fund.