The Blues did not make one signing, having missed out on number-one target Ben Woodburn.
However, a number of Pompey’s League One rivals did add to their ranks late in the window.
Here’s a look at how they recruited...
1. Kenny Dougall (Barnsley-Blackpool)
The midfielder won League One promotion with Barnsley in 2019. He's been without a club since June and signed a two-year deal at the Seasiders. Photo: Dean Mouhtaropoulos
2. Ben Woodburn (Liverpool-Blackpool)
The Wales international has moved Bloomdfield Road on loan until January. He was linked with Pompey earlier this summer. Photo: Alex Livesey
3. Niall Ennis (Wolves-Burton)
Pompey had been looking at the striker, but he instead moved to the Brewers on a season-long loan. Photo: Alex Burstow
4. Andrew Shinnie (Luton-Charlton)
The midfielder was one of two signings the Addicks made. Signed on a season-long loan from the Hatters. Photo: Alex Burstow