Thank you. Good afternoon, everyone. Thank you for joining us to review our 2019 third quarter performance. Thomas is on the call, but has asked me to present his comments on the business. He will participate in the Q&A. As a reminder, today's call may include forward-looking statements, which represent the company's belief regarding future events, which by their nature are not certain and are outside of the company's control. Our actual results and financial condition may differ possibly materially from what is indicated in these forward-looking statements. We ask that you refer to the disclaimers in our press release. You should also review a description of risk factors contained in our financial reports filed with the SEC. The third quarter of 2019 was a strong one for Interactive Brokers. Commissions were $187 million, the third highest in our history, and net interest income reached a record $291 million on a net interest margin of 1.77%, also a record. At our electronic broker, total accounts grew by 16% and client equity topped $156 billion, leading to brokerage revenues exceeding $0.5 billion for the first time and generating a 65% pre-tax profit margin. This occurred despite modest volatility with the average VIX Volatility Index rising to 15.9 versus a low volatility quarter last year. This increase, combined with having more clients on our platform, helped lead us to a 13% increase in total DARTs. As we have stated for some time, we focus on growing our customer base in all client segments and geographies as this generates more activity both from new customers coming on to our platform and especially in periods where we see volatility increasing from all customers trading more during these periods. These numbers are impressive, but they are now in the past. I will share some of what we are working on for the quarters ahead. Since the inception of our Electronic Brokerage business, we have prided ourselves on our commitment to offering the best platform for our customers. To us, this meant best execution by routing orders directly to a venue and not selling customer order flow. It meant routing our customers’ orders to whichever venue is likely to offer the best price for that specific security at that particular time. Best platform also meant paying a transparent high interest rate on idle customer cash and charging a transparent low rate on margin loans. More recently, we found that not everyone shared our definition of what is best. To some investors, best meant paying zero commissions first and foremost. If this is what some of our customers wanted, we decided to oblige. We therefore introduced IBKR Lite on September 26, and rebranded our existing offering as IBKR Pro. On IBKR Lite, investors from the U.S. will pay zero commissions on U.S. stocks and ETFs and like our customers always have will pay no base cost on options trade. As disclosed to our customers, Lite orders will be routed to liquidity providers and return for payment for order flow. IBKR Lite clients will also receive interest on their idle cash, higher than at many of our competitors, and less than that of our IBKR Pro platform and pay some of the lowest rates in the industry on their margin borrowing, so higher than that of our Pro platform. There will be no account minimums, inactivity fees, or market data fees. A wide variety of other products from our stock yield enhancement program, international securities, bonds, and futures will be available at a regular low rate. IBKR Pro represents our award-winning platform, with third party confirmed best price execution, low-tiered rates on margin loans and commissions, access to markets and products around the globe, and access to all of our trading algorithms, analytics, and technology. Because we are so automated and keep our costs low, we are able to offer our Lite platform with low margin lending rates and positive cash interest rates. It appears some of our zero commission competitors think zero should also apply to the interest paid on cash in the customers' brokerage accounts. IBKR Lite rates are higher than IBKR Pro for margin loans and lower for interest paid on customer cash, and we receive payment for their order flow. So, the IBKR Lite platform is revenue neutral to us. New customers who use the Lite model will bring us a new revenue stream. So, we’ve positioned ourselves to capture new revenue without giving up existing revenue. In addition to IBKR Lite, we undertook a number of initiatives and expanded our range of offerings this quarter. We constantly seek to improve our platform and to bring it to more potential clients. This quarter saw the introduction of new portals for introducing Broker and EmployeeTrack clients, a significant new improvements to the RIA platform. All these features not only offer robust functionality, but have also benefited from major improvements in navigation, workflow, and design. Our BondDesk added a direct connection to market access, an alternative trading system that can be accessed on our trader workstation. Interactive Brokers currently supports high yield and emerging market bonds, and we anticipate adding other fixed income asset classes in the near future. On June 30, we were proud to announce our new bet, learn, win simulated sports betting exchange. This operates as a peer-to-peer market where participants can buy, sell, and trade bets on actual sporting events in real time. Players get $1,000 in virtual dollars, euros, pounds, or Canadian dollars and use it to buy or sell simulated sports bets. Winnings can be converted to up to $1,000 and free commissions once a participant has opened an Interactive Brokers account. Once again, our goal here is to broaden our possible audience by attracting customers more familiar with the probability as a spectator sports and with financial markets. While it is too soon to talk about impacts, we are seeing conversions from the simulated sports betting accounts to actual funded IBKR accounts, which was our objective with this promotion. We also recently rolled out access to the Russian Stock Market to our clients worldwide. And finally, as of last Monday, our shares are listed back on NASDAQ under the same ticker IBKR. We believe the NASDAQ listing is best for our shareholders and we look forward to working with them. Now for the breakdown by customer type of how our brokerage business is evolving. We once again saw strong growth in accounts and client equity. However, we saw weaker conditions outside the Americas, as some markets fell including the Nikkei, Hang Seng, and FTSE 100 indices. As of September 30, individual customers made up 50% of all accounts, up 17% over the prior year, 35% of customer equity, up 9%; and latest 12 months commissions were 51% of total, up 2% from last year. Customer equity growth was stronger in Europe and Asia this quarter, while commissions were up in the U.S., but weaker outside it. Hedge funds were 1% of our accounts, up 3% for the 12-month period, 9% of our client equity, up 3% and 9% of our commissions, down 5% on weakness in Asian markets. Our price execution, low overall costs, and high cash interests continue to attract institutions both large and small. Proprietary trading accounts were 2% of accounts, up 11%, 10% of client equity, up 11% and 15% of commissions, down 5% again mainly due to weakness in international markets, particularly Asia. Registered Investment Advisors represented 16% of our customer accounts, up 9% for the latest 12 months, 23% of our customer equity, up 4% and 16% of our commissions, down 2%. Again, overseas markets declined most in commissions. Finally, introducing brokers are 32% of our customer accounts, up 19% over the last 12 months, 23% of our customer equity up 20% and 9% of our commission income up 6%. Introducing brokers outsource their back office to us reducing their operational, regulatory and compliance burdens. These services in addition to the growing population of new investors in developing countries many of whom watch trade internationally help drive the expansion of our customer base. We look forward to a resolution of trade issues in Asia, but we have not yet seen much change in the ability of Mainland China accounts to fund as they had in the past. However, we are more diversified in terms of the countries and companies we provide our I broker services to and are seeing growth worldwide in every region where we operate. And one last note about Interactive Brokers future. The last day of September was my 75th birthday and as I promised earlier this year, October 1st marks the day when Milan Galik, our President became our CEO, while I will remain Chairman. I do not plan on sitting on the beach, I find that much too boring. Well, I will be involved in strategy as much as I have been, Milan will be the one calling the shots. So I'm not going anywhere. This is the beginning of a new chapter and what will prove to be the long successful story of Interactive Brokers. And now Paul Brody will take you through the numbers. Paul?