Iowa Code
Iowa Code § 553.5 (2026)
Monopoly prohibited
✓ current as of July 2026
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A person shall not attempt to establish or establish, maintain, or use a monopoly of trade or commerce in a relevant market for the purpose of excluding competition or of controlling, fixing, or maintaining prices. [C97, §5060, 5061; S13, §5067-a; C24, 27, 31, 35, 39, §9906, 9907, 9915; C46, 50, 54, 58, 62, 66, 71, 73, 75, §553.1, 553.2, 553.10; C77, 79, 81, §553.5]
\nNotes of Decisions
Cited in 19
cases (1 in the last 5 years), 1982–2026 · leading case: Steven A. Mueller, Bradley J. Brown, Mark A. Kruse, Kevin D. Miller, & Larry E. Phipps, on Behalf of Themselves & Those Like Situated v. Wellmark, Inc. D/B/A Wellmark Blue Cross & Blue Shield of Iowa, an Iowa Corp. & Wellmark Health Plan of Iowa, Inc., an Iowa Corp., 818 N.W.2d 244 (Iowa 2012).
Steven A. Mueller, Bradley J. Brown, Mark A. Kruse, Kevin D. Miller, & Larry E. Phipps, on Behalf of Themselves & Those Like Situated v. Wellmark, Inc. D/B/A Wellmark Blue Cross & Blue Shield of Iowa, an Iowa Corp. & Wellmark Health Plan of Iowa, Inc., an Iowa Corp., 818 N.W.2d 244 (Iowa 2012). “Count IV also seeks money damages, alleging Wellmark “abused [its] monopoly power in the relevant geographic and product markets” to injure plaintiffs in violation of section 553.5 of the Iowa Competition Law.”
Comes v. Microsoft Corp., 646 N.W.2d 440 (Iowa 2002). “Iowa Code § 553.5 . The Iowa Competition Law also authorizes a very broad category of persons to maintain a suit in our state courts for damages resulting from anticompetitive conduct.”
Neyens v. Roth, 326 N.W.2d 294 (Iowa 1982). “The district court held section 553.5 was inapplicable because no “trade or commerce” was involved.”
Davies v. Genesis Med. Ctr., 994 F. Supp. 1078 (S.D. Iowa 1998). “1996), ethnicity discrimination; Count V, Iowa antitrust laws, Iowa Code § 553.5 (1996); Count VI, intentional interference with contractual, prospective contractual, and business relations; Count VII, defamation; Count VIII, intentional infliction of emotional distress; and…”
MAX 100 LC v. Iowa Realty Co., Inc., 621 N.W.2d 178 (Iowa 2001). “12(1) (1999), and the plaintiffs were not required to establish the traditional elements for’the issuance of a temporary injunction of irreparable harm, maintenance of the status quo, and the lack of an adequate remedy at law. Instead, the district court determined the…”
Int'l Motor Contest Ass'n, Inc. v. Staley, 434 F. Supp. 2d 650 (N.D. Iowa 2006). “The defendants again assert that the efforts of IMCA that are contrary to the public interest include attempting to control 60-70 percent of a specific racing tire market and price fixing in violation of Iowa Code § 553.5 . In their nearly identical Counterclaims, Staley and…”
Comes v. Microsoft Corp., 696 N.W.2d 318 (Iowa 2005). “In this case, the plaintiffs must prove that Microsoft violated the Iowa Competition Law, see Iowa Code § 553.5 , and this violation caused class members to suffer identifiable harm and damages, see id.”
Amended June 5, 2015 Steven A. Mueller, Bradley J. Brown, Mark A. Kruse, Kevin D. Miller, & Larry E. Phipps, on Behalf of Themselves & Those Like Situated v. Wellmark, Inc. D/B/A Wellmark Blue Cross & Blue Shield of Iowa, an Iowa Corp., & Wellmark Health Plan of Iowa, Inc., an Iowa Corp., 861 N.W.2d 563 (Iowa 2015). “4 of the Iowa Competition Law, the counterpart to section 1 of the Federal Sherman Antitrust Act.”
United States v. Microsoft Corp., 87 F. Supp. 2d 30 (D.D.C. 2000). “10/3 (West 1999); Iowa Code § 553.5 (1997); Kan. Stat. §§ 50-101 et seq.”
Water Dev. Co. v. Bd. of Water Works, 488 N.W.2d 158 (Iowa 1992). “Section 553.5 provides: A person shall not attempt to establish or establish, maintain, or use a monopoly of trade or commerce in a relevant market for the purpose of excluding competition or of controlling, fixing, or maintaining prices.”
DOUBLE D SPOTTING Serv., INC., Plaintiff-Appellant, v. SUPERVALU, INC.; World Super Servs., Inc., Defendants-Appellees, 136 F.3d 554 (8th Cir. 1998). “§ 1 (1994); and that they attempted to establish a monopoly in violation of Iowa Code § 553.5 and Section 2 of the Sherman Antitrust Act, 15 U.”
Nw. Bell Tel. Co. v. Iowa Utils. Bd., 477 N.W.2d 678 (Iowa 1991). “…in a relevant market for the purpose of excluding competition or of controlling, fixing, or maintaining prices." Iowa Code § 553.5 (1991).”
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