Jol has strengthened his squad with signings, including midfielders Scott Parker and Adel Taarabt, as well as striker Darren Bent, who scored on his debut in the 3-1 defeat by Arsenal.
The Cottagers boss does not expect a "hectic" flurry of late activity before the window closes, but he admitted he would like extra cover for his defence.
"I think we are pretty satisfied to have the players on the board. I think we did pretty well to get Darren Bent, Scott Parker and Adel Taarabt," he said.
"We will have to wait and see, maybe there will be one. You never know what will happen.
"I don't think deadline day will be as hectic as it was here over the last season when we had one or two players coming in on the last day, but there are always wishes for any manager.
"I think at the back, for example, we could do with a player, but we'll have to wait and see.
"Of course Aaron Hughes could always play right-back for Sascha Riether, but we will have to wait and see - maybe there will be one.
"We are probably 20th in the ranking in the league in terms of spending money, but we still do well.
"We are very proud that we still get the good players in - like Bent, and even Scott Parker - and I think if we can do that, attract these players, we will do well."
Jol also admitted he was unlikely to make a move for Parma defender Yohan Benalouane, and added: "He is one of those players who can play left-back, centre-back or right-back, so he fits the bill, but I don't think he will be the one."