Then, in September 2019, Goliath bowed low to David. [98], Additional documents from the Giuffre v Maxwell defamation suit were released on 30 July 2020. [175] The photos were later proven to have been taken at a meeting with Maxwell's friend and attorney Leah Saffian, who also gave other pictures to the Daily Mail. In the last few months, Robinhood has quietly been restructuring. It all played into the official Robinhood creation story: When the 2011 Occupy Wall Street movement materialized as a protest of bailouts on Wall Street and foreclosures on Main Street, one of Tenev and Bhatts friends accused them of profiteering from an unequal system. [129], Maxwell's attorneys regularly protested about the conditions of her confinement, which included being kept awake by a light shone in her eyes every fifteen minutes to deter the chances of her committing suicide, and being denied a sleep mask. "Reviewing a Birth Certificate Birth Area Code." [111], As of 28April2021[update], Maxwell was held at the Metropolitan Detention Center, Brooklyn, New York. Robinhoods commission-free trading is now standard at firms including TD Ameritrade, Fidelity, Schwab, Vanguard and Merrill Lynch. Keep ya boi in your prayers, says one user named JG. His proclamations ring a bit hollow, though, once you look more closely at what is actually driving his digital casino. As dawn approaches, NBA Young Bull announces: Good morning future millionaires . (Dec. 6), Twitter CEO and co-founder Jack Dorsey announces he's leaving company. He is linked to the $1million New Hampshire. CLAIM: The judge in the Ghislaine Maxwell case issued a media-wide gag order over the trial with no livestream to keep scandalous details from leaking out to the public. THE FACTS: Twitter's CEO did step down on that Monday, but in his . His death prompted questions from several members of Congress about the platforms safety. This is not a real birth certificate for "James Maxwell Trump," the supposed son of Trump and Maxwell. [10] Maxwell was arrested in Bradford, New Hampshire by the FBI on 2 July 2020, through the use of an IMSI-catcher ("stingray") mobile phone tracking device on a phone used by her to call one of her lawyers, her husband Scott Borgerson, and her sister Isabel. Options trades also happen to be prime steak for Robinhoods real customers, the algorithmic quant traders. Maxwell worked for her father, Robert Maxwell, until his death in 1991; she then moved to New York City, where she continued living as a socialite and had a relationship with Epstein. "I've decided to leave Twitter because I believe the company is ready to move on from its founders," Dorsey said in a statement. In a 2009 deposition, several of Epstein's household employees testified that Epstein referred to her as his "main girlfriend" who also hired, fired, and supervised his staff, starting around 1992. . [23][65], Maxwell has repeatedly denied any involvement in Epstein's crimes. Similar versions of the list have also racked up thousands of shares on Facebook. However, the fraudulent version maintained the same document numbers and discolorations as the original document. Im holding everything. He began buying put options against plummeting travel-industry stocks like Delta and Uber, and later bought calls on Boeing and other beaten-down companies, correctly figuring that they would benefit from the governments de facto bailout via the bond market. For instance, if a buyer sees sell orders bunched up around a certain price, it means that if the stock or option hits that price, the market is going to fall hard. "MORE TO COME!!!!" [53] As a trained helicopter pilot, Maxwell also transported Epstein to his private Caribbean island. ADVERTISEMENT Institutions benefit. Like any skilled trader, Tenev is talking his book. After more than 15 years, Twitter co-founder and CEO Jack Dorsey is stepping down from his role. [137][138][139][140], On 28 December, as the jury completed its fourth full day of deliberations, judge Nathan said she feared jurors and trial participants might become infected with COVID-19 and forced to quarantine, raising the possibility of a mistrial. ", "Epstein accuser holds Victoria's Secret billionaire responsible, as he keeps his distance", "New Jeffrey Epstein Accuser Goes Public: Defamation Lawsuit Targets Dershowitz", "Jeffrey Epstein survivor paints portraits of other survivors: 'Each one of those should have never happened', "Jeffrey Epstein's Latest Accuser Is an Artist Who Claims the Billionaire Sex Offender Lured Her in With Promises to Help Her Career", "The Sisters Who First Tried to Take Down Jeffrey Epstein", "Jeffrey Epstein accuser Maria Farmer says Ghislaine Maxwell threatened her life, FBI 'failed' her", "Jeffrey Epstein Accuser Sues His Estate, Staff Over Alleged Sexual Assaults", "Jeffrey Epstein accuser expands lawsuit against estate, alleged enablers", "New lawsuits detail how Jeffrey Epstein allegedly lured victims", "Ghislaine Maxwell accused in new Jeffrey Epstein lawsuit", "Jeffrey Epstein lawsuits offer sordid details, including sex while on work release", "Victims allege Ghislaine Maxwell is purposefully evading justice system", "Why These 5 Accusers of Jeffrey Epstein Want More Than Money", "Ghislaine Maxwell attorneys call federal indictment against her 'meritless', "Jeffrey Epstein's Ex, Ghislaine Maxwell, Sues His Estate for Legal Fees", "Ghislaine Maxwell sues Jeffrey Epstein's estate over legal fees", "Ghislaine Maxwell says she was Epstein's employee not his madam. Its an old technique.. [23][34], On 15 August 2019, reports surfaced that Maxwell had been living in Manchester-by-the-Sea, Massachusetts, in the home of Scott G. Borgerson, a Council on Foreign Relations fellow in residence, since 2007,[166] who, in October 2020, due to the publicity surrounding Maxwell, stepped down as CEO of CargoMetrics,[167] a hedge fund he had founded. The claim: On the first day of Ghislaine Maxwell's trial, the CEOs of Twitter, Walmart and CNBC all resigned After the federal sex trafficking trial of Ghislaine Maxwell began Nov. 29,. In other words, it appears the goal of this account is to troll the Trump family, not spread legitimate concerns about an illicit affair. The app won an Apple Design award in 2015, a prize given to just 12 apps that year. In August, the brokerage app said it would hire hundreds of new customer-service representatives in its Texas and Arizona offices by the end of 2020. [68], In 2017, Sarah Ransome filed a suit, in the United States District Court for the Southern District of New York, against Epstein and Maxwell, alleging that Maxwell hired her to give massages to Epstein and later threatened to physically harm her or destroy her career prospects if she did not comply with their sexual demands at his mansion in New York and on his private Caribbean island of Little Saint James, in the United States Virgin Islands. [48] She quickly rose to wider prominence as a New York City socialite. [126], On 29 March 2021, US prosecutors added new charges of sex trafficking a minor and sex trafficking conspiracy, alleging that Maxwell was involved in grooming a fourth girl, aged 14, to engage in sexual acts with Epstein between 2001 and 2004 at his residence in Palm Beach. In fact, an analysis reveals that the more risk Robinhoods customers take in their hyperactive trading accounts, the more the Silicon Valley startup profits from the whales it sells their orders to. 1995 - 2023 by Snopes Media Group Inc. "Jeffrey Epstein Confidante Ghislaine Maxwell Arrested on Sex Abuse Charges." This is a BETA experience. Options are sexier than stocks because, like hitting a single number on a roulette wheel, they can offer more bang for the buck. is the ceo of robinhood maxwell son. Founded in 2013, the company launched its app in 2014, providing trading access to anyone with a phone. Given Tenev and Bhatts history in the high-frequency trading business, its no surprise that they cleverly built their firm around attracting the type of account that would be most desirable to their Wall Street trading-firm clients. By Jeff Kauflin, Antoine Gara and Sergei Klebnikov. The list appears to stem in part from misleading social media posts that circulated during the early days of the coronavirus pandemic. Press J to jump to the feed. [62], In 1995, Epstein renamed one of his companies the Ghislaine Corporation; based in Palm Beach, Florida, the company was dissolved in 1998. Its just after midnight on Friday, July 31, and the Todd Capital Options Community, a $20-per-month subscription Slack channel favored by thousands of novice options traders, is buzzing with life. THE boss of trading platform Robinhood has denied a "conspiracy theory" claiming hedge funds forced it to block users from buying shares in GameStop. [20] Maxwell attended Marlborough College to study for A-Levels, before going on to earn a degree in Modern History with Languages from Balliol College, Oxford in 1985. Despite these problems, millions continue to flock to the addictive app, and Tenev and Bhatt sit on a potential gold mine reminiscent of Facebook in its pre-IPO days. [12][115][117][118][119] The judge set a trial date of 12 July 2021. Welcome to the stock market, Robinhood-style. [155] In August 2022, her former lawyers sued Maxwell, alleging that she failed to pay $878,000 in legal fees. A Facebook post says, "On the first day of the Ghislaine Maxwell trial, the CEO of Twitter resigned, the CEO of Walmart resigned, the CEO of CNBC resigned." The chief executive officer of Twitter . [19] She studied first at Oxford High School for Girls in North Oxford and then, aged nine, was enrolled at Edgarley Hall boarding preparatory school in Somerset, followed by Headington School at age thirteen. [83][100][101][102] During the lawsuit filed in 2017 from Ransome against Maxwell, District Judge John G. Koeltl granted a motion for "alternative service" on the grounds that the plaintiff's efforts to reach Maxwell were persistently thwarted; these included hiring a private investigation firm that attempted service at three physical addresses, sending information to several email addresses, and reaching out to the lawyers actively representing Maxwell in another lawsuit who refused to become a "general agent of process" to relay the information to her. The most obviousand disruptiveinnovation: no commissions and no minimum balances, at a time when even low-cost rivals like E-Trade and TD Ameritrade made billions on such fees. [86][87] Maxwell claimed she had been a longtime employee of Epstein (from 1998 to 2006)[88] who had served to manage his property holdings in the US Virgin Islands, New York, New Mexico, Florida and Paris[89] while continuing to deny any knowledge or involvement in his criminal activities. A sizable chunk of its $800 million in fresh venture capital is going toward upgrades and adding engineers to the 300 already on staff. [31] Maxwell spent a large amount of time in the late 1980s aboard the yacht, which was equipped with a Jacuzzi, sauna, gym and disco. [103] USVI prosecutors consider Maxwell to be a "critical fact witness" in their lawsuit against Epstein's estate. [81][82], Annie Farmer, represented by David Boies, sued Maxwell and Epstein's estate in Federal District Court in Manhattan in November 2019, accusing them of rape, battery and false imprisonment and seeking unspecified damages. Following Epstein's release, although Maxwell continued to attend prominent social functions, she and Epstein were no longer seen together publicly. Even the best modeling could not have predicted that $1,200 stimulus checks would propel them to billionaire status. A better optionespecially considering Robinhoods current problemsmight be a quick sale to a full-service firm such as Goldman Sachs, UBS or Merrill Lynch. . Such a sale would surely provide billion-dollar windfalls for its young founders, Tenev and Bhatt. [161] An application for the United Kingdom organisation to be closed was made on 4 September 2019, with the first notice in The London Gazette made on 17 September 2019. According to Epstein's former business partner, Steven Hoffenberg, Robert Maxwell introduced his daughter to Epstein in the late 1980s. [158], In 2012, Maxwell founded the TerraMar Project,[159] a nonprofit organisation that advocated the protection of oceans. [25][6], Maxwell was a prominent member of the London social scene in the 1980s. The life of Jeffrey Epstein's former socialite girlfriend and alleged 'madam', "Trump doubles down on well-wishes for alleged sex trafficker Ghislaine Maxwell", "Prince Andrew and Ghislaine Maxwell are still chums and still talk, reports say", "New role for Andrew in doubt after royal fiasco", "How Prince Andrew and Ghislaine Maxwell's Friendship Became a Scandal", "Prince Andrew 'categorically denies' claims he sexually abused teenager", "Prince Andrew Newsnight interview: Transcript in full", "Mystery of Ghislaine Maxwell's Wealth Hangs Over Case", "Epstein scandal's pressing issue: the role of Ghislaine Maxwell", "Even from jail, sex abuser manipulated the system. For two years, Robinhood has been speaking publicly about an IPO. She's not been seen in months", "The Hunt for Jeffrey Epstein's Alleged Enabler Ghislaine Maxwell", "What was Ghislaine Maxwell doing in a tiny New Hampshire town? USA TODAY previously debunked a claim that his resignation was related to Maxwell's trial. If people send you orders, you see what they are. ", "Explainer: What happens after Ghislaine Maxwell's guilty verdict? Besides being given one share of a low-priced stock to start you on your investing journey, one of the first things you notice when you begin trading stocks on Robinhood and are authorized to trade options is that the bright orange button right above BUY on your phone screen says TRADE OPTIONS. [86][87], Maxwell was named in a civil suit filed against Epstein's estate in March 2021 by a Broward County woman who accused Epstein and Maxwell of trafficking her after repeatedly raping her in Florida in 2008. Dienst, Jonathan, et al. Man charged with backing car into cop at Walmart during ma Canadian teacher with size-Z prosthetic breasts placed on paid leave, What's next for Buster Murdaugh after dad's murder conviction, life sentence, Murdaugh son collapsed outside court after sitting stone-faced through dad's 6-week murder trial: source, Tom Sandoval breaks silence on Ariana Madix split amid cheating claims, Kelly Osbourne posts first photo of baby son as he hangs out with uncle Jack, Greys Anatomy alum Isaiah Washington retiring from acting: The haters have won, Max Scherzer's first look at the new pitch clock, Chris Rock Jokes About Watching Emancipation to See Will Smith Getting Whipped In Advance of Netflix Special: Report, Kellyanne Conway and George Conway to divorce. At the time, Maxwell worked at a real estate office on Madison Avenue and was reported to be socialising with celebrities. With interest rates near zero and the stock market roaring, the public-offering window is wide open, but it wont be forever. [10] An associated, UK-based company, Terramar (UK), listed Maxwell as a director. Given their complexity, options trading has long been the realm of the most sophisticated hedge funds. [32][168][169] Maxwell and Borgerson were described as having been in a romantic relationship for several years. Scuba Certification; Private Scuba Lessons; Scuba Refresher for Certified Divers; Try Scuba Diving; Enriched Air Diver (Nitrox) In opening statements Monday, prosecutors described Ghislaine Maxwell at her trial as a longtime associate of convicted sex . [78] Araoz later amended her complaint on 8 October 2019 with the names of the previously unidentified women enablers to include Lesley Groff, Cimberly Espinosa, and the late Rosalyn Fontanilla. [44] The brothers were acquitted three and a half years later in January 1996. Not since May Day 1975, when the SEC deregulated brokerage commissions, giving rise to discount brokerages like Charles Schwab, has there been a more disruptive force in the retail stock market. The affidavit says that in the summer of the following year, they hired her to work on an art project in billionaire businessman Leslie Wexner's Ohio mansion, where she was then sexually assaulted by both Maxwell and Epstein. A spokesperson for Maxwell's family had previously said she was "too fragile" to testify. That [stop limit] order is immediately sold to a high-speed trader who now knows where your intention is, where you would sell, says one former high-speed trader. Unlike most of its competitors, though, Robinhood charges the quants a percentage of the spread on each trade it sells, versus a fixed amount. ", "Epstein ex-girlfriend Ghislaine Maxwell charged", "Ghislaine Maxwell, Jeffrey Epstein's longtime associate, has been charged with enticement of minors", "Accused Jeffrey Epstein accomplice Ghislaine Maxwell claims possible 'perjury trap' in bid to keep court records sealed", "Jeffrey Epstein associate Ghislaine Maxwell arrested", "Federal Inmates Locator: Find an inmate", "Ghislaine Maxwell had ex-British military as security at New Hampshire estate, prosecutors say", "Ghislaine Maxwell's siblings willing to endorse US$5 million bond, lawyer says", "Maxwell denied bail on Epstein-related sex abuse charges", "Ghislaine Maxwell's US$5 Million Bail Application Could Be Blocked Because Of Her French Passport", "Alleged Jeffrey Epstein sex crime accomplice Ghislaine Maxwell tried to flee from FBI agents before arrest, prosecutors reveal", "Ghislaine Maxwell Pleads Not Guilty, Is Denied Bail in Case Tied to Jeffrey Epstein", "Ghislaine Maxwell denied bail in Epstein sex trafficking case", "Ghislaine Maxwell pleads not guilty in trafficking case", "Ghislaine Maxwell was in process of divorcing husband, prosecution claims as it slams fresh bail bid", "Ghislaine Maxwell's latest request for bail denied by US federal judge", "Ghislaine Maxwell court hearing disrupted by apparent QAnon followers", "Ghislaine Maxwell says grand jury that indicted her was too White, seeks dismissal of sex abuse case", "Ghislaine Maxwell faces new charges as US expands sex crime case", "Prosecutors Add Sex Trafficking Charges Against Ghislaine Maxwell", "Maxwell makes first US court appearance", "Ghislaine Maxwell's sleep loss in jail concerns judges", "Ghislaine Maxwell's bid to dismiss sex trafficking, perjury charges rejected", "Judge sets November for start of Ghislaine Maxwell's trial", "Ghislaine Maxwell appears relaxed in pre-trial court appearance", "Maxwell, Epstein were 'partners in crime,' prosecutor says", "Jury in Ghislaine Maxwell trial asks to review expert testimony", "Ghislaine Maxwell tells court she will not testify as defence rests", "An Interview with the Ghislaine Maxwell Trial Tracker The Now Suspended Twitter Account that had over 500k followers", "Krystal and Saagar: Twitter Censors Nancy Pelosi Portfolio Tracker, Ghislaine Maxwell Trial Tracker", "Twitter suspends account providing Ghislaine Maxwell trial updates", "Fearing Mistrial Because of Virus, Maxwell Judge Extends Jury's Hours", "Ghislaine Maxwell: jury weighs charges as judge warns Covid could derail trial", "Ghislaine Maxwell Is Found Guilty of Aiding in Epstein's Sex Abuse", "Ghislaine Maxwell's family begin appeal process after sex abuse verdict", "Ghislaine Maxwell's family launch appeal after sex abuse verdict", "Ghislaine Maxwell: Survivors speak of relief after guilty verdict", Maxwell juror says he was distracted during jury selection but 'I did not lie', "Ghislaine Maxwell's legal team files request for retrial over juror's revelation", "Juror's Error Did Not Affect Ghislaine Maxwell Verdict, Judge Rules", "Ghislaine Maxwell sentenced to 20 years in prison", "Ghislaine Maxwell sentenced to 20 years for 'horrific' sex trafficking", "Ghislaine Maxwell on Suicide Watch Ahead of NY Sex Trafficking Sentencing: Docs", "Ghislaine Maxwell is on suicide watch but isn't suicidal, may need to postpone sentencing, lawyer says", "Ghislaine Maxwell reported jail staff threatened her safety, prompting suicide watch", "Ghislaine Maxwell appeals against sex trafficking conviction", "Law firm sues Ghislaine Maxwell, saying it's owed $878,000 for defense", "Ghislaine Maxwell to be sentenced in New York in late June", "Ghislaine Maxwell retrial arguments must be public, prosecutors tell judge", "TerraMar Project launches to celebrate and protect the world's oceans", "Ghislaine Maxwell abruptly torpedoed her oceanic non-profit in the wake of the scandal surrounding her associate Jeffrey Epstein", "Jeffrey Epstein's 'Madam' Ghislaine Maxwell Spotted at In-N-Out Burger", "We visited alleged Epstein 'madam' Ghislaine Maxwell's upscale house in London's Belgravia, where the superrich live, and got a taste of her lifestyle before she disappeared", "Ghislaine Maxwell: 'A modern day geisha girl of the capitalist world', "How Did Scott Borgerson Get Mixed Up With Ghislaine Maxwell? Its like youre writing a secret on a piece of paper and handing it to your broker, who sells it to someone who has an interest to trade against you., Robinhood refutes the notion that its model preys on inexperienced investors and claims most of its customers use a buy and hold strategy. reads text in the post, which accumulatemore than 4,000 shares in a week. [134], Psychology professor Elizabeth Loftus was called as an expert witness for the defence and provided testimony on false memory syndrome. [8] Throughout the day and over the weekend, a stream of posts scroll by from exuberant Robinhood traders going by screen names like See Profit Take Profit and My Options Give Me Options. On Monday, August 3, the Nasdaq index sets a new record high. [53] She has also been referred to as the "Lady of the House" by Epstein's staff and as his "aggressive assistant". Each count carries a maximum sentence of five years in prison. November 30, 2021 / 11:13 AM / CBS News. [91] Jeffrey Epstein was arrested on 6 July 2019 at Teterboro Airport in New Jersey and charged with sex trafficking and sex trafficking conspiracy. 25 Feb/23. Among those who have purportedly stepped down: the chief executives of Disney, Amazon, Nissan and Walmart. The pandemic forced millions of future Robinhood customers home to shelter in place, free from diversions like sports and armed with fast internet connections and free money from the government. [135], Maxwell chose not to testify, telling the judge "Your honour, the government has not proved its case beyond a reasonable doubt. Only one of the companies mentioned in the Facebook post, Twitter, had a chief executive step down during the trial. Senior editor covering fintech and crypto. In the first quarter of 2020, 70% of the firms $130 million in revenue was derived from selling its order flow. Dorsey'sresignation was unrelated to Maxwell. They had spent virtually nothing on marketing. [50] The Times reported that Maxwell met Epstein in the early 1990s at a New York party following "a difficult break-up with Count Gianfranco Cicogna Mozzoni" (19622012) of the CIGA Hotels clan. [22][23] Maxwell was provided with an annual income of 80,000 from a trust fund established in Liechtenstein by her father. is the ceo of robinhood maxwell son is the ceo of robinhood maxwell son (No Ratings Yet) . These so-called Flash Boys, who worked milliseconds ahead of orders from both retail and institutional investors, had emerged from lower Manhattans back offices and IT departments, as well as university Ph.D. programs, to become the new kings of Wall Street. Typically when a market crash is followed by a recession, retail investors pull out. [23] A 2018 expos by Julie K. Brown in the Miami Herald revealed Jane Doe3 to be Virginia Giuffre, who was previously known as Virginia Roberts. We had some astounding parallels in our lives, Bhatt tells Forbes. The witness was the second woman to take the witness stand against Maxwell in federal court. [77], On 14 August 2019, Jennifer Araoz filed a lawsuit in New York County Supreme Court against Epstein's estate, Maxwell, and three unnamed members of his staff; the lawsuit was made possible under New York state's new Child Victims Act, which took effect on the same date. Tenev says its making major technology investments to increase capacity and add redundancy. [59] She introduced Epstein to Prince Andrew, and the three often socialised together. He had shared a narrative of that abuse with other jurors during the proceedings. Here's what her trial may reveal, Epsteins dark legend wraps Maxwell trial in web of conspiracy theories, Jack Dorsey steps down as Twitter CEO, Parag Agrawal named as successor, sends stock surging, Fact check: These 11 CEOs stepped down during COVID-19 pandemic, Disney CEO Bob Iger steps down; chairman of Disney Parks, Experiences, Products steps up, Disney CEO Robert Iger announces 2021 retirement, Jeff Bezos steps down as Amazon CEO today. The CEO of Robinhood is Ghislane Maxwells son! Click here to sign up for our fact-check text chat. by . And Robinhoodnamed for the legendary medieval outlaw who took from the rich and gave to the poorhad a mission even the most woke, capitalism-weary Millennial could get behind: to democratize finance for all.. The claim, which USA TODAY rated Partly False, circulated on social media in July 2020. According to a recent report by Piper Sandler, Robinhood gets paidby the quants58 cents per 100 shares for options contracts versus only 17 cents per 100 for equities. [136], In early December 2021, Twitter suspended the account @TrackerTrial, an account monitoring Maxwell's trial. . [127][128] Maxwell pleaded not guilty to the additional charges; she faced six counts that included sex trafficking of a minor and sex trafficking conspiracy, in addition to two counts of perjury. [83][73], Authorities in the United States Virgin Islands (USVI) were unsuccessful in locating Maxwell during the three and a half months they were seeking to serve her with a subpoena. The charges relate to testimony she gave in 2016 in a defamation case filed. [141][142], On 29 December 2021, Maxwell was found guilty and convicted by a jury in US federal court on five sex trafficking-related counts carrying a potential custodial sentence of up to 65 years' imprisonment: one of sex trafficking of a minor (maximum: 40 years), one of transporting a minor with the intent to engage in criminal sexual activity (10 years) and three of conspiracy to commit choate felonies (15 years total). What to know about the baseless, far-right conspiracy theory connected to Marjorie Taylor Greene, subscribe to our print edition, ad-free app or electronic newspaper replica here, Your California Privacy Rights/Privacy Policy, Ross Richendrfer, Dec. 7, phone interview with USA TODAY, Ross Richendrfer, Dec. 7, email exchange with USA TODAY, Sarah Minkel, Dec. 7, email exchange with USA TODAY, USA TODAY, Jan. 30, 2020,IBM's Ginny Rometty, first female CEO at company, stepping down, Kenly Walker, Dec. 7, email exchange with USA TODAY, Noah Edwardsen, Dec. 7, email exchange with USA TODAY, Brooke Wilson, Dec. 8, phone interview with USA TODAY. The extreme volatility exposed how financial markets had mostly moved away from the staid, but stable, New York Stock Exchange and to a smattering of opaque quantitative trading pools dominated by a handful of secretive firms.