MAS masco corporation NYSE Forest Products MLM martin marietta materials, inc. NYSE Mining & Quarrying of Nonmetallic Minerals (No Fuels) MAG mag silver corporation ordinary shares NASDAQ Precious Metals LYB lyondellbasell industries nv ordinary shares class a (netherlands) NYSE Major Chemicals LXFR luxfer holdings plc ordinary shares NYSE Major Chemicals LXU lsb industries, inc. NYSE Major Chemicals LPX louisiana-pacific corporation NYSE Forest Products LMB limbach holdings, inc. NASDAQ Engineering & Construction LEN.B lennar corporation class b NYSE Homebuilding LEN lennar corporation class a NYSE Homebuilding LNDC landec corporation NASDAQ Major Chemicals FSTR l.b. foster company NASDAQ Metal Fabrications KRO kronos worldwide inc NYSE Major Chemicals KOP koppers holdings inc. koppers holdings inc. NYSE Forest Products KGC kinross gold corporation NYSE Precious Metals KBR kbr, inc. NYSE Military/Government/Technical JELD jeld-wen holding, inc. NYSE Forest Products IPI intrepid potash, inc NYSE Mining & Quarrying of Nonmetallic Minerals (No Fuels) THM international tower hill mines, ltd. ordinary shares (canada) AMEX Precious Metals IP international paper company NYSE Paper IFF international flavors & fragrances, inc. NYSE Major Chemicals IBP installed building products, inc. NYSE Homebuilding IOSP innospec inc. NASDAQ Major Chemicals NGVT ingevity corporation NYSE Major Chemicals ICL icl group ltd. ordinary shares NYSE Agricultural Chemicals IAG iamgold corporation ordinary shares NYSE Precious Metals HUN huntsman corporation NYSE Major Chemicals HBM hudbay minerals inc. ordinary shares (canada) NYSE Precious Metals HXL hexcel corporation NYSE Major Chemicals HL hecla mining company NYSE Mining & Quarrying of Nonmetallic Minerals (No Fuels) HMY harmony gold mining company limited NYSE Precious Metals FUL h. b. fuller company NYSE Home Furnishings GURE gulf resources, inc. NASDAQ Major Chemicals SIM grupo simec, s.a.b. de c.v. american depositary shares AMEX Steel/Iron Ore GPRE green plains, inc. NASDAQ Major Chemicals GLDD great lakes dredge & dock corporation NASDAQ Military/Government/Technical GVA granite construction incorporated NYSE Military/Government/Technical AUMN golden minerals co AMEX Precious Metals GOLD gold.com, inc. NASDAQ Precious Metals GORO gold resource corporation AMEX Precious Metals GRAM gold flora corp NYSE Military/Government/Technical GFI gold fields limited american depositary shares NYSE Precious Metals GLT glatfelter corporation NYSE Paper GEVO gevo, inc. NASDAQ Major Chemicals FF futurefuel corp. common shares NYSE Major Chemicals FCX freeport-mcmoran, inc. NYSE Precious Metals FNV franco-nevada corporation NYSE Precious Metals FSM fortuna silver mines inc ordinary shares (canada) NYSE Precious Metals FMC fmc corporation NYSE Major Chemicals FLR fluor corporation NYSE Military/Government/Technical