Good afternoon, everyone. Thank you for joining us to review our 2018 third quarter performance. Once again, Thomas is on the call, but asked me to present his comments on the business. He will handle 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 outside of the company's control. Our actual results may -- 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. This quarter saw several new developments in Interactive Brokers. I will start with our decision to move our primary listing to the IEX exchange. I want to emphasize that our stock continues to trade at all the exchanges it did before, but by moving our primary listing to IEX, we believe investors buying or selling our shares will get better prices. Typically executions on the IEX are down at the midpoint of the bid ask spread, which is better than where they are done on another exchanges. This is because IEX has a discretionary midpoint peg order that allows traders to post limit orders at the midpoint and give the exchange the discretion to cancel the order for three milliseconds at the time when limit orders at other exchanges are crumbling and then reinstate the order at the new midpoint. So it is the combination of the exchange at speed bump with their crumbling order software routine that makes us an effective order type with a limit order that gets picked off much less often. Anyone interested, should go to the IEX website and read up on the facility. IEX's signature feature speed bump of a few milliseconds is better for investors because high frequency traders, the traders who buy retail order flow from other brokers, cannot take advantage of the order. When there are middlemen involved, as they are another mouth to feed, costs are raised, not reduced. It is our goal to make sure the cost to invest is as low as possible and then to give that benefit to the investor, we do not want that benefit to go to the middlemen who buy order flow and then trade against us. We are pleased to be the first company to list on IEX and we expect many more companies to follow us. Once again, in this quarter, we set new records in our brokerage business. Our customer equity reached $142.5 billion, up 23%, but we also hit an all-time high in customer accounts up 26% to 576,000. Margin lending at $30.7 billion outstanding was up 22% from the year ago quarter and was also up sequentially. This growth led to a net revenue increase of 21% in our brokerage business, with its pretax margin reaching 66% for the quarter. DARTs this quarter was 763,000, up 10% over last year, but they were down from the more active first and second quarters. Market volatility as measured by the VIX slowed to an average of 13 in September and was coming down steadily from its 2018 monthly average high of 22 in February. Since quarter end, the VIX has risen again. Our DARTs increase comes more consistent account growth and not from the [indiscernible] acquisitions. We expanded the range of financial services we offer to our customers this quarter. Through our integrated investment management program, we support many different types of transactions from one account. First, our clients are in the best interest rates and their available cash, currently 1.68% on U.S. dollars in qualified account, without having a transfer from one account to another. Given that many banks and brokers pay only a small fraction of 1%, we see this as a huge opportunity to bring in new customers and new deposits and we keep pushing this message in our advertising. Customers can now also deposit their paycheck directly into their IBKR account and immediately start to earn those high rates and use our newly introduced Bill Pay function to pay bill. Our debt MasterCard allows our customers to pay expenses or make purchases where they can borrow against their account at our industry-low interest rates and they can do all this as well as investments securities in over 120 market centers worldwide at low cost seamlessly from one account. The greener grass syndrome is spreading through the industry. JPMorgan is offering free trades by selling their customer's orders to high frequency traders, while we are offering high rates on deposit. We've got more to gain or lose. I like our position. We'll have more to say about zero commissions in our coming advertisements. I am asked many times how it is that we continue to grow at such high rates and when will it stop? The answer is, it will continue as long as we adhere to our commitment to focus on building automation. This enables us to continue to compete on price, to offer ever broader account capabilities and geographies, low commissions and low interest rates and margin borrowing, high interest rates on cash and best price execution on trades. Individually and collectively, these capabilities attract perspective clients and contribute to the growth of our business. Further, many of the market segments we operate in our large, global and growing, potential customers are well aware of the importance of keeping costs down and revenues up especially in an environment where there is downward pressure on the fees. So the prices we charge versus our competitors and the interest we pay on cash balances along with the international access on technology we offer are important points of differentiation that we talk to many potential customers about worldwide. To reach them, we advertise on business media and in locations that reach the select customers we target as well as on social media. We also have 40 experienced sales people who are well-versed in our products, a team that we grew over decades. It takes more than a year to train someone who is experienced in the field and all that our platform can do across multiple customer types in multiple countries, which have different demands and requirements. Our salespeople are located around the world and they do everything from attending conferences and industry events to keeping track of new asset managers launching to maintaining contact with both existing firms who may be looking to make a change and with existing clients who recommend us to friends and colleagues. About half of our business comes from word-of-mouth. So the bigger we grow and the more people that are on our platform, the more people there are who talk about us and what we can do for a trader or investor. Pretext profit for the quarter was $276 million, adding back the $23 million for this quarter's unfavorable currency impact net of treasury marked gains gives us $299 million or 65% pretax margin. Brokerage was $291 million of this and achieved a 66% pretax margin. Now for the breakdown by customer of how our brokerage business is evolving. Once again, in all our customer segments, we saw strong growth in accounts, client equity and commissions. For the third quarter, hedge funds and proprietary trading firms were 4% of our accounts of 11%, 19% of our client equity up 12% and 25% of our commissions up 16%. Our low margin rates and high cash interest continue to attract institutions in the competitive space, which is highly focused and execution price and overall cost. Growth in this area was strong and both developed and developing geographic markets. Individual customers made up 49% of accounts up 19%, 35% of customer equity up 22% and 50% of commissions up 18%. Customer equity was driven by double-digit strength in all geographic regions, particularly in developed markets internationally as word-of-mouth about our platform has spread. While market volatility is down sequentially, commissions benefited from higher volatility and account growth versus last year's third quarter. Investors continue to become more aware of the practice of brokers selling their customers orders to high frequency traders, which is now part of the class-action suit. This is a practice that gives investors lower prices on their sell orders and forces them to pay higher prices on their buy and is something we at Interactive Brokers do not do with our customer's orders. We also see individuals who on global access among cost, not only on commissions and margin financing, but also on FX as a trade internationally, which all plays to our strength. Registered Investment Advisors represent 17% of our accounts, which is up 16%, 24% of our customer equity up 24% and 17% of our commissions up 16%. The RIA segment is benefiting from our new products, our EDPs account mass upload capability, low commission rates and high interest on cash balances, as well as the important facts that we do not charge an RIA multiple fees to allocated trade among multiple customer account. We also offer free Customer Relationship Management or CRM software as well as reporting tools that mean an RIA does not have to pay for third-party services. In an environment with downward pressure on fees, our ability to save an advisor money while providing excellent performance reporting and functionality has grown increasingly important. Finally, Introducing Brokers represent 31% of our customer accounts, up 48%, 21% of our customer equity, up 36% and 9% of our commission income, up 37%. As we discussed last quarter, our Introducing Broker segment continues to benefit from the tailwind of two major trends, the increasing regulatory burden worldwide, which makes outsourcing your back office the best solution and the growth of the new investor class in developing countries many of whom want to trade internationally. This quarter, we introduced our integrated investment management program, which consolidates the variety of financial transactions you can do from a single interactive brokers account. Without having to transfer funds between account, customers automatically get the best interest rate on both their cash, earning market rate interest on idle balances and on their securities, earning extra income by lending out their fully paid shares. Integrated Investment Management also includes our debit MasterCard, our new Bill Pay function and payroll direct deposit, giving our customers more reasons to stay on our platforms to transact their financial business. Our Insured Bank Deposit Suite program, which offers customers up to $2.75 million in SIPC and FDIC insured deposits, continues to grow and reach $1.6 billion this quarter. Finally, we are looking forward to announcing access to Israel on our platform in the fourth quarter and now Paul Brody will take you through the numbers, Paul?