Question-and-Answer Session
Operator
(Operator instructions) Our first question comes from Scott Siefers at Sandler O'Neill.
Scott Siefers -- Sandler O'Neill & Partners L.P.
Good morning, guys.
Claude Davis
Hi, Scott.
Scott Siefers -- Sandler O'Neill & Partners L.P.
I guess, Frank, maybe there was obviously some noise in the expense number. I wonder if you can quantify just, when you talk about some of the unusual expenses, if you’ll be able to quantify exactly what impact those had on the third quarter number?
Frank Hall
Sure. I would just say, in a general sense, Scott, we view the core expense base to have been flat on a linked-quarter basis. So the variances that you're seeing are related to either Peoples integration work, acquisition activities, the related employment decisions that have been made as a result of that. So a fair amount of noise, but stripping all that away we really view our core expenses as having remained flat.
Scott Siefers -- Sandler O'Neill & Partners L.P.
Okay. I guess, maybe in a little different way, are able to say how much of the total dollar value of expenses came from the new acquisitions?
Frank Hall
Scott, are you talking about in terms of the increased costs that we would expect on a run rate basis?
Scott Siefers -- Sandler O'Neill & Partners L.P.
No, just -- you had $46 million expense number this quarter, how much of that came from either Peoples or Irwin, the various transactions.
Frank Hall
Right. Again, if you're looking at it relative to our previous quarters, which is where I’ve guided you to, our core expenses for the third quarter were relatively flat compared to our core expenses in previous quarters.
Scott Siefers -- Sandler O'Neill & Partners L.P.
Okay, so basically all of them I guess.
Frank Hall
Right.
Scott Siefers -- Sandler O'Neill & Partners L.P.
Okay, perfect. I think that’s it from me. Thank you.
Claude Davis
Thanks, Scott.
Operator
The next question comes from David Elkhart [ph] at Janney Montgomery Scott.
David Elkhart -- Janney Montgomery Scott
Hi, guys. How are you doing?
Claude Davis
Good.
Frank Hall
Good morning.
David Elkhart -- Janney Montgomery Scott
Looking at the loan portfolio, what percentage of loans are floating right now?
Frank Hall
Let's see. The loan portfolio -- we are still asset sensitive on a combined basis and there wasn't too much of a shift in the acquired portfolios. I will get the final number for you here, but roughly 30% or so of the portfolio is still fixed rate and the rest would be variable. I’ll circle back with you on the tighter number there as I pull it out.
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