A T & T Inc COM 00206R102 227510 12927 SH SOLE 12927 0 0 AbbVie Inc COM 00287Y109 212511 1167 SH SOLE 1167 0 0 Adobe Inc COM 00724F101 6755585 13388 SH SOLE 13388 0 0 Advanced Micro Devices Inc COM 007903107 10549280 58448 SH SOLE 58448 0 0 Alaska Air Group COM 011659109 3089906 71875 SH SOLE 71875 0 0 Alphabet Inc Class A COM 02079K305 28231758 187052 SH SOLE 187052 0 0 Alphabet Inc Class C COM 02079K107 6173077 40543 SH SOLE 40543 0 0 Amazon.com Inc. COM 023135106 45946202 254719 SH SOLE 254719 0 0 Amer Express Company COM 025816109 4068780 17870 SH SOLE 17870 0 0 Ameren Corporation COM 023608102 499748 6757 SH SOLE 6757 0 0 American Tower REIT COM 03027X100 2021938 10233 SH SOLE 10233 0 0 Amgen Incorporated COM 031162100 341302 1200 SH SOLE 1200 0 0 APi Group Corp COM 00187Y100 387438 9866 SH SOLE 9866 0 0 Apple Inc COM 037833100 26376516 153817 SH SOLE 153817 0 0 Applied Materials Inc. COM 038222105 5679780 27541 SH SOLE 27541 0 0 Arista Networks Inc COM 040413106 15228880 52517 SH SOLE 52517 0 0 Automatic Data Processing COM 053015103 256601 1027 SH SOLE 1027 0 0 Axon Enterprise Inc COM 05464C101 8485931 27122 SH SOLE 27122 0 0 Ball Corp COM 058498106 1749204 25968 SH SOLE 25968 0 0 Bank of America Corporation COM 060505104 406890 10730 SH SOLE 10730 0 0 Berkshire Hathaway Inc Class COM 084670702 2837248 6747 SH SOLE 6747 0 0 Boeing Company COM 097023105 453022 2347 SH SOLE 2347 0 0 Boston Scientific Corporation COM 101137107 14472348 211306 SH SOLE 211306 0 0 Broadcom Inc COM 11135F101 26304547 19846 SH SOLE 19846 0 0 Builders Firstsource Inc COM 12008R107 522001 2503 SH SOLE 2503 0 0 Cadence Design Systems Inc COM 127387108 12976641 41688 SH SOLE 41688 0 0 Cara Therapeutics Inc COM 140755109 10224 11235 SH SOLE 11235 0 0 Cass Information Systems Inc. COM 14808P109 1228257 25498 SH SOLE 25498 0 0 Caterpillar Inc COM 149123101 282846 772 SH SOLE 772 0 0 Chevron Corporation COM 166764100 447898 2839 SH SOLE 2839 0 0 Cisco Systems Inc COM 17275R102 3661639 73365 SH SOLE 73365 0 0 Coca-Cola Company COM 191216100 2359498 38566 SH SOLE 38566 0 0 Colgate Palmolive Co. COM 194162103 2969756 32979 SH SOLE 32979 0 0 Commerce Bancshares Inc. COM 200525103 516310 9705 SH SOLE 9705 0 0 Copart Inc COM 217204106 13688234 236330 SH SOLE 236330 0 0 Costco Wholesale Corporation COM 22160K105 18310846 24993 SH SOLE 24993 0 0 Danaher Corporation COM 235851102 682953 2735 SH SOLE 2735 0 0 Deckers Outdoor Corporation COM 243537107 13233174 14059 SH SOLE 14059 0 0 Deere & Company COM 244199105 2768186 6740 SH SOLE 6740 0 0 Disney Walt Co. COM 254687106 4575621 37395 SH SOLE 37395 0 0 Dolphin Capital Investors Ltd COM G2803G102 3000 50000 SH SOLE 50000 0 0 Dow Chemical Co. COM 260557103 385234 6650 SH SOLE 6650 0 0 Electronic Arts Inc. COM 285512109 1765997 13311 SH SOLE 13311 0 0 Eli Lilly & Co COM 532457108 20557798 26425 SH SOLE 26425 0 0 Emerson Electric Company COM 291011104 589769 5200 SH SOLE 5200 0 0 Enterprise Financial Services COM 293712105 320221 7895 SH SOLE 7895 0 0 Exxon Mobil Corporation COM 30231G102 648154 5576 SH SOLE 5576 0 0 Fair Isaac Corp COM 303250104 10536712 8432 SH SOLE 8432 0 0 Fedex Corporation COM 31428X106 2979088 10282 SH SOLE 10282 0 0 Ferrari NV COM N3167Y103 9434983 21626 SH SOLE 21626 0 0 Fiserv Inc COM 337738108 3919106 24522 SH SOLE 24522 0 0 Floor & Decor Hldgs Inc Cl A COM 339750101 240186 1853 SH SOLE 1853 0 0 Frontier Communications Parent COM 35909D109 220745 9010 SH SOLE 9010 0 0 General Mills Inc COM 370334104 419680 5998 SH SOLE 5998 0 0 Grainger WW Inc COM 384802104 8824060 8674 SH SOLE 8674 0 0 Green Brick Partners Inc COM 392709101 465096 7722 SH SOLE 7722 0 0 Home Depot Inc COM 437076102 715001 1864 SH SOLE 1864 0 0 Honeywell International Inc. COM 438516106 336840 1641 SH SOLE 1641 0 0 Intel Corporation COM 458140100 220754 4998 SH SOLE 4998 0 0 Intl. Business Machines Corp. COM 459200101 321386 1683 SH SOLE 1683 0 0 Intuitive Surgical Inc COM 46120E602 15372947 38520 SH SOLE 38520 0 0 IQVIA Hldgs Inc COM 46266C105 3085511 12201 SH SOLE 12201 0 0 Jabil Inc COM 466313103 736859 5501 SH SOLE 5501 0 0 Johnson & Johnson COM 478160104 454846 2875 SH SOLE 2875 0 0 JP Morgan Chase & Co. COM 46625H100 452394 2259 SH SOLE 2259 0 0 Lab Corporation of America Hol COM 50540R409 2957730 13539 SH SOLE 13539 0 0 Lincoln Electric Holdings Inc COM 533900106 8083399 31645 SH SOLE 31645 0 0 Linde PLC New COM G54950103 11064766 23830 SH SOLE 23830 0 0 Lowe's Companies Inc. COM 548661107 4078227 16010 SH SOLE 16010 0 0 Lululemon Athletica Inc. COM 550021109 2984957 7641 SH SOLE 7641 0 0 Mastercard Inc Class A COM 57636Q104 20217656 41983 SH SOLE 41983 0 0 McDonalds Corp. COM 580135101 994156 3526 SH SOLE 3526 0 0 Merck & Co Inc New COM 58933Y105 463936 3516 SH SOLE 3516 0 0 Meta Platforms Inc Cl A COM 30303M102 28691534 59087 SH SOLE 59087 0 0 Microsoft Corporation COM 594918104 44574732 105949 SH SOLE 105949 0 0 Netflix Inc. COM 64110L106 19147293 31527 SH SOLE 31527 0 0 Norfolk Southern Corp. COM 655844108 229383 900 SH SOLE 900 0 0 Northrop Grumman Corp COM 666807102 423247 884 SH SOLE 884 0 0 NVIDIA Corporation COM 67066G104 33538346 37118 SH SOLE 37118 0 0 O'Reilly Automotive Inc New COM 67103H107 10216364 9050 SH SOLE 9050 0 0 Old Dominion Freight Line Inc COM 679580100 13781976 62842 SH SOLE 62842 0 0 Oracle Corporation COM 68389X105 321840 2562 SH SOLE 2562 0 0 Oracle Corporation COM 68389X105 62805 500 SH Call SOLE 500 0 0 PepsiCo Inc. COM 713448108 3951917 22581 SH SOLE 22581 0 0 Pfizer Inc COM 717081103 314858 11346 SH SOLE 11346 0 0 Pfizer Inc COM 717081103 27750 1000 SH Put SOLE 1000 0 0 Philip Morris International In COM 718172109 448863 4899 SH SOLE 4899 0 0 Procter & Gamble Co. COM 742718109 4318721 26618 SH SOLE 26618 0 0 QCR Holdings Inc COM 74727A104 220182 3625 SH SOLE 3625 0 0 Qualcomm Inc COM 747525103 3028569 17889 SH SOLE 17889 0 0 Raytheon Technologies Corp COM 75513E101 214999 2204 SH SOLE 2204 0 0 Roper Industries Inc COM 776696106 6795160 12116 SH SOLE 12116 0 0 Salesforce Inc COM 79466L302 241848 803 SH SOLE 803 0 0 Sherwin-Williams Co COM 824348106 627083 1805 SH SOLE 1805 0 0 Shockwave Medical Inc COM 82489T104 15209200 46707 SH SOLE 46707 0 0 Shopify Inc Cl A COM 82509L107 8545960 110742 SH SOLE 110742 0 0 Simmons First Natl Corp Cl A COM 828730200 2321469 119294 SH SOLE 119294 0 0 Sino Express Travel Ltd. COM 82936B102 0 15000 SH SOLE 15000 0 0 Starbucks Corporation COM 855244109 560221 6130 SH SOLE 6130 0 0 Synchrony Finl Corp COM 87165B103 2727728 63259 SH SOLE 63259 0 0 Taiwan Semiconductor Manufactu COM 874039100 8455371 62149 SH SOLE 62149 0 0 Take Two Interactive Software COM 874054109 13035343 87786 SH SOLE 87786 0 0 Target Corporation COM 87612E106 3041242 17162 SH SOLE 17162 0 0 TechPrecision Corp New COM 878739200 96268 26667 SH SOLE 26667 0 0 Tesla Motors Inc COM 88160R101 168758 960 SH SOLE 960 0 0 Tesla Motors Inc COM 88160R101 175790 1000 SH Call SOLE 1000 0 0 Thermo Fisher Scientific Inc COM 883556102 412659 710 SH SOLE 710 0 0 U. S. Bancorp COM 902973304 631708 14132 SH SOLE 14132 0 0 Uber Technologies Inc COM 90353T100 25033606 325154 SH SOLE 325154 0 0 Union Pacific Corporation COM 907818108 3223405 13107 SH SOLE 13107 0 0 United Rentals Inc COM 911363109 4866672 6749 SH SOLE 6749 0 0 Verizon Communications COM 92343V104 319269 7609 SH SOLE 7609 0 0 Vertex Pharmaceuticals Inc COM 92532F100 6551889 15674 SH SOLE 15674 0 0 Visa Inc. Class A COM 92826C839 4152431 14879 SH SOLE 14879 0 0 Vistra Energy Corporation COM 92840M102 544733 7821 SH SOLE 7821 0 0 Wal-Mart Stores Inc. COM 931142103 811497 13487 SH SOLE 13487 0 0 Waste Mgmt. Inc. Com COM 94106L109 452731 2124 SH SOLE 2124 0 0 Watsco Inc Cl A COM 942622200 308427 714 SH SOLE 714 0 0 Williams Companies COM 969457100 362811 9310 SH SOLE 9310 0 0 XPO Inc COM 983793100 446508 3659 SH SOLE 3659 0 0 Zoetis Inc Cl A COM 98978V103 2312593 13667 SH SOLE 13667 0 0 Liberty Media Corporation Sen CONV 530715AG6 156072 383000 PRN SOLE 383000 0 0 Invesco QQQ Trust Series 1 ETF 46090E103 120754 272 SH SOLE 272 0 0 Invesco QQQ Trust Series 1 ETF 46090E103 444010 1000 SH Put SOLE 1000 0 0 iShares MSCI EAFE ETF ETF 464287465 411678 5155 SH SOLE 5155 0 0 iShares Russell 2000 ETF ETF 464287655 230068 1094 SH SOLE 1094 0 0 iShares S&P 500 Growth ETF ETF 464287309 270546 3204 SH SOLE 3204 0 0 iShares US Technology ETF ETF 464287721 270120 2000 SH SOLE 2000 0 0 MFA Special Value Tr SBI ETF 55274E102 50317 11307 SH SOLE 11307 0 0 S&P 500 Depositary Receipt ETF 78462F103 159475 305 SH SOLE 305 0 0 S&P 500 Depositary Receipt ETF 78462F103 523070 1000 SH Put SOLE 1000 0 0 Vanguard Dividend Appreciation ETF 921908844 1577203 8637 SH SOLE 8637 0 0 Vanguard Emerging Markets ETF ETF 922042858 234998 5626 SH SOLE 5626 0 0 Vanguard Small-Cap Index Fund ETF 922908751 1283076 5613 SH SOLE 5613 0 0 Vanguard Small-Cap Value ETF ETF 922908611 343657 1791 SH SOLE 1791 0 0 Vanguard Tax Managed Fund FTSE ETF 921943858 1122253 22369 SH SOLE 22369 0 0 Arbor Realty Trust Inc Cumula PFD 038923876 251229 12844 SH SOLE 12844 0 0 Enterprise Financial Services PFD 293712303 310227 15950 SH SOLE 15950 0 0 Rait Finl Tr Pfd Ser A Cum Div PFD 749227203 0 20000 SH SOLE 20000 0 0