Warren Buffett Used These 4 Simple Rules to Acquire 76 Businesses Worth Over $173 Billion

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0;switch(e){case"expanded_panel":o='{promoMarkup}{notifMarkup}',r=n._store.getNotifications(),a=n._generatePanelMarkup(o,r),i.innerHTML=a;break;case"error_panel":a=(o='{errorMsg}').replace("{errorMsg}",n._config.panel.errorMsg),i.innerHTML=a}t&&t()}else t&&t(new Error("No panel parent"))}},{key:"createPanelParentNode",value:function(e){e&&(e.innerHTML='',this._panelNode=document.getElementById(D))}},{key:"updateBadgeNode",value:function(e){if(e){var t=this._store.getNotifications().newCount,n=this._config.badge.maxCount;if(t){var o=t>n?n+"+":t;e.innerHTML=o}else e.innerHTML=""}}},{key:"addStyles",value:function(e){if(e&&"undefined"!=typeof window){var t=document.getElementById(this._config.panel.styleTagId);t||((t=document.createElement("style")).type="text/css",t.id=this._config.panel.styleTagId,t.innerText=e,document.head.appendChild(t))}}}]),e}(),U=function(){function e(t,n,o){L(this,e);var i=this;i._store=n,i._view=o,i._config=t;var 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RegExp("[?&]notifications=1(&|#|$)");"desktop"===y&&i&&b.test(window.location.search)&&(i.checked=!0)};be("ybar-mod-notification",(function(e){var t={isUH3:"crunch"===e.getConfig().ytheme,notifContainer:document.getElementById("notification-container"),notifBadge:document.getElementById("notif-badge"),notifMenu:document.getElementById("ybarNotificationMenu"),notifMenuOpener:document.querySelector("#ybarNotificationMenu + label"),notifDropdown:document.getElementById("notifDropdownContainer"),tooltipContainer:document.querySelector(".".concat(Vn)),notifLabel:document.querySelector(".".concat($n))};t.notifDropdown&&ro(e,t)}))}()}};]]>Caleb NaysmithSat, Jul 19, 2025, 3:00 PM 3 min readImage of Warren E_ Buffett by Photo Agency via ShutterstockWarren Buffett, chairman and CEO of Berkshire Hathaway (BRK.B) (BRK.A) has long been celebrated for his clear and methodical approach to investing. In his 1977 shareholder letter, Buffett articulated the four key qualities he seeks in any business: “We want the business to be (1) one that we can understand, (2) with favorable long-term prospects, (3) operated by honest and competent people, and (4) available at a very attractive price.” This simple yet rigorous framework has become a touchstone for investors worldwide, and remains highly relevant in today’s dynamic markets.Buffett’s insistence on understanding a business stems from his belief that clarity is essential for sound decision-making. He has often avoided industries or companies that are too complex or outside his circle of competence, preferring instead to focus on sectors where he can confidently assess risks and opportunities. This principle has helped Berkshire Hathaway avoid many speculative bubbles and costly missteps that have ensnared others.Is Palantir Stock a Buy Above $150?Coinbase Stock Just Hit a New 52-Week High. How Much Higher Can Crypto Week Take COIN?This Bullish Catalyst for Nvidia Stock Is Coming in SeptemberStop Missing Market Moves: Get the FREE Barchart Brief – your midday dose of stock movers, trending sectors, and actionable trade ideas, delivered right to your inbox. Sign Up Now!The second criterion, favorable long-term prospects, reflects Buffett’s preference for businesses with durable competitive advantages — what he and his late, longtime business partner Charlie Munger called “economic moats.” These are companies with strong brands, loyal customers, and high barriers to entry, enabling them to generate consistent profits over time. By focusing on long-term sustainability rather than short-term gains, Buffett has built a portfolio that can weather market volatility and changing economic cycles.Buffett’s third requirement — honest and competent management — shows his respect for integrity and skill in leadership. He has repeatedly credited the success of Berkshire Hathaway’s investments to the quality of the people running its subsidiaries. Buffett’s willingness to invest in companies where he is not directly involved in daily operations is rooted in his confidence in the character and capability of their management teams.Finally, the demand for an attractive price is a hallmark of Buffett’s value investing philosophy. He seeks to buy shares when they are undervalued relative to their intrinsic worth, providing a margin of safety against unforeseen risks. This discipline has allowed Berkshire Hathaway to achieve strong returns over decades, even as market conditions shift.Terms and Privacy PolicyPrivacy & Cookie SettingsMore InfoS&P 5006,296.79 -0.57 (-0.01%)Dow 3044,342.19 -142.30 (-0.32%)Nasdaq20,895.66 +10.01 (+0.05%)Russell 20002,240.01 -13.68 (-0.61%)VIX16.41 -0.11 (-0.67%)Gold3,358.30 +13.00 (+0.39%)PortfolioSign in to access your portfolioSign inTop gainersSTEM Stem, Inc. 13.50 +4.23 (+45.63%)TLN Talen Energy Corporation 328.63 +64.63 (+24.48%)CRSP CRISPR Therapeutics AG 65.13 +10.04 (+18.22%)IVZ Invesco Ltd. 19.92 +2.64 (+15.28%)SOC Sable Offshore Corp. 31.69 +3.35 (+11.82%)Top losersMLGO MicroAlgo Inc. 14.66 -3.12 (-17.57%)ARWR Arrowhead Pharmaceuticals, Inc. 16.76 -2.09 (-11.09%)MOH Molina Healthcare, Inc. 182.98 -21.27 (-10.41%)ELV Elevance Health, Inc. 277.09 -25.36 (-8.38%)STNE StoneCo Ltd. 13.67 -1.24 (-8.32%)Most activeLCID Lucid Group, Inc. 3.0400 -0.0800 (-2.56%)QS QuantumScape Corporation 14.64 +1.04 (+7.65%)NVDA NVIDIA Corporation 172.41 -0.59 (-0.34%)WBD Warner Bros. 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