The Man Who Took KKR's Stock for a Ride 9-18-2015 Dow Jones News In the five years since KKR & Co. listed on the New York Stock Exchange, the private-equity firm's executives have barely thought about the person on the trading floor who sometimes facilitates the buying and selling of its shares. Now, this role has become a focal point at the company. KKR is considering replacing its market-making firm, IMC Financial Markets. KKR says IMC failed to adequately explain its floor trader's decisions that on Aug. 24 briefly cut the private-equity firm's market value in half and momentarily wiped away about $1 billion from each of its founders' net worth , according to people familiar with the matter. IMC, a Dutch trading firm, declined to comment and Donald Himpele, the trader who was responsible for KKR's stock that day, didn't respond to requests for comment. The dispute between KKR and its market maker is the latest turn in the debate about the effectiveness of humans versus machines in handling moments of market volatility. The exchange's designated market makers, with their colored vests, are a vestige of an earlier era of stock trading when all buy and sell orders were executed on the floor of the historic exchange building at 11 Wall Street. Market makers simultaneously offer to buy and sell securities to facilitate trading, and make money by pocketing the spread between those prices. The firms that are designated market makers for companies have additional responsibilities, including handling the opening auction and stepping in to assist when shares become volatile. As the market became more electronic in recent years and completely automated competitors arose, NYSE created what is called a "hybrid" model of humans and technology. The appeal, officials have said, is that humans can take over in times of trouble and slow things down to damp price movements. After the 2010 flash crash, when the markets swung rapidly, the NYSE touted its model as the reason it didn't have to cancel a single trade. At certain times, humans can exacerbate the swings because of their wide discretion to set the opening price of stocks, analysts and market participants say. In anticipation of high volatility on Aug. 24, the NYSE invoked a rarely used rule that allows market makers extra leeway to decide on an opening price. The exchange delayed trading in KKR on its platform by three minutes and 15 seconds before Mr. Himpele opted to open shares of KKR at $10. That was about half the $19.55 at which they closed at the previous Friday, despite there being no significant news affecting the company. It was also below the $17-to-$18 range at which the stock was trading at on electronic exchanges in the preceding three minutes. It wasn't clear what information Mr. Himpele used to determine his opening price. Over the next five seconds, about 476,000 shares changed hands at prices as low as $8. Trading pushed prices off that bottom and after two brief halts, the stock reached $17.50 just before 9:45 a.m., but not before 870,061 shares changed hands at the depressed prices, according to FactSet trading data. Shares ended the day at $18.69. For a brief period, KKR's founding cousins and co-chief executives Henry Kravis and George Roberts saw their net worth drop by about $930 million and $1 billion, respectively. The drop caused no lasting problems for the New York private-equity firm, but its executives aren't satisfied with the explanations they have received from IMC about why the stock was initially priced so low, according to people familiar with the matter. IMC had discretion to choose the price at which it would open the stock, so KKR's inquiries have been centered on how IMC chose the price it did, the people said. The puzzling price moves were a stark example of the cracks in market structure that suddenly became evident when the Dow dropped more than 1,000 points shortly after opening that day. The Securities and Exchange Commission is inquiring broadly into those issues, which plagued the opening of the market and led to large swings in prices, according to some of the people familiar with the situation. As part of that probe, the SEC is making inquiries about the actions of IMC and Mr. Himpele, the people said. KKR's shares weren't the only ones that had dramatic swings. Shares of General Electric Co. and J.P. Morgan Chase & Co. dropped more than 20% before recovering most of the day's losses. Hospital operator HCA Inc., a top KKR holding, briefly lost 46%. Market participants believe the same factors contributed to those drops, but they were less dramatic than KKR's and haven't come under the same scrutiny. "Most of the time, people don't even pay attention to the floor traders," said Spencer Mindlin, an analyst at Aite Group. "But now the argument is being made that automated systems might have done better." The NYSE Group, a unit of Intercontinental Exchange Inc., has defended its model in recent weeks, saying it ensures smooth openings by combining human judgment with technology. Thursday morning, NYSE Chief Operating Officer Stacey Cunningham said on a panel on market stability at Washington's Georgetown University the exchange delayed the opening of some shares beyond the 9:30 a.m. start of normal market hours on Aug. 24 as an effort to protect investors. The comments drew a rebuke from BATS Global Markets Chief Executive Chris Concannon, who also was on the panel and said it is "inappropriate" to give a human with a financial interest the power to decide when to open a stock, and at what price. After a company chooses to list at the NYSE, it selects a market maker from among six firms. On its website the NYSE says "identifying your Designated Market Maker…is the beginning of an important partnership that perseveres well beyond listing day," adding that the market maker is responsible for maintaining "fair and orderly markets for your stock." KKR originally chose Goldman Sachs Group Inc. as its market maker, but the role was transferred to IMC when the Dutch company acquired the rights to Goldman's business on the exchange floor last year. The NYSE gives designated market makers, including computerized trading firms such as IMC and Virtu Financial Inc., lower trading fees in exchange for them handling the opening auctions, stepping in during volatile moments and other responsibilities. Such firms tend to trade anywhere from hundreds of thousands to millions of times a day, so getting slightly cheaper prices to trade makes a difference. The firms typically make little money from their floor-trading operations, but must maintain a presence and follow NYSE rules to receive discounts on their overall trading, people familiar with the matter said.