Sales of apartment properties were booming in the first half of the year, totaling about $48.1 billion, according to data provided by Real Capital Analytics.

The massive Archstone deal certainly skewed the numbers, but even with portfolio transactions aside, volume was still about hovering around $24.8 billion, which is on par with last year’s numbers.

Equity Residential’s portfolio purchases brought them to the top of the list as they shelled out $8.9 billion in the Archstone transaction while AvalonBay came second with about $5.8 billion.

Meanwhile, the No. 4 buyer of this year was Greystar after Equity agreed to sell $1.5 billion in assets to it in the third-largest portfolio sale of this year so far. This move by Equity coupled with other dispositions to help finance the Archstone deal also put the company on the top sellers list for the year.

Top 10 Buyers for First Half of 2013 By Number of Properties

1. Equity Residential
2. AvalonBay
3. Rainbow Estates Group
4. Greystar
5. Goldman Sachs
6. Fairfield Residential
7. Caisse de Depot
8. Kushner Companies
9. Brookfield Asset Mgmt
10. Morguard NA Res REIT

Top 10 Sellers for First Half of 2013 By Number of Properties

1. Lehman Brothers Holdings
2. Equity Residential
3. Babcock & Brown
4. Dawnay Day Group
5. AREA Property Partners
6. Fannie Mae
7. Camden Property Trust
8. Coltown Properties
9. Bascom Group
10. Normandy RE Partners