1 INTRODUCTION
2 DATA AND SAMPLE SELECTION
2.1 Data
2.2 Selection of z ∼ 1.6 Passive $g z K_{s}$ Galaxies
3 THE ANGULAR CORRELATION FUNCTION
3.1 Procedure
4 THE SPATIAL CORRELATION FUNCTION
4.1 Limber Inversion
4.2 Redshift Distributions
4.3 Estimating the Correlation Length
5 MASSES OF DARK MATTER HALOS
5.1 Brief Review of the Millennium XXL Simulation
5.2 Clustering of Dark Matter Halos at $z\sim1.6$
5.3 Halo Masses of $\scriptstyle P E-g z K_{s}$ Galaxies
6 DISCUSSION
6.1 Comparing UMPEGs with other Galaxy Populations
6.2 Stellar Mass - Halo Mass Relation
6.3 Evolution of UMPEGs to $z\sim0$
7 CONCLUSIONS