Good afternoon everyone. Thomas is on the call but he has asked me to present his comments on the business. Thank you for joining us to review our 2018 second quarter performance. Once again in this quarter we set new records in our brokerage business. Just one year after we passed the $100 billion mark in customer equity for the first time we ended the quarter with $134.7 billion. We also hit an all time high in customer accounts up 27% to over 542,000. Margin lending at over $28 billion outstanding was also up 27% from the year ago quarter although it did moderate somewhat sequential. Our growth and momentum continued to increase. The pretax margin in our brokerage business reached 64% for the quarter. DARTs this quarter was 797,000 up 19% over last year though they were down from the very active first quarter as market volatility slowed from the high levels earlier this year. The 19% DARTs increase comes from account growth and not from making acquisitions. It is not that we have some fundamental objection to acquisitions but whenever we look at an opportunity we encounter the barrier of our own extremely low pricing. Sellers hope to receive a multiple of revenues but after transferring those accounts to our platform and our pricing they would generate substantially lower revenues so that we cannot justify paying for them based on the seller's pricing. It is ultimately those customers who would realize those savings who will eventually transfer those accounts to us anyway we hope. Commissions per DART were $3.86 down slightly from last year. Commissions per DART will probably continue to decline slowly as we find out more and more introducing broker accounts where the brokers pay us based on their customers combined volume and charge their customers the price we would charge them as an individual account or possibly even more. As it is our goal to become the largest broker in the world we are happy with this outcome and want more and more introducing broker accounts. On the interest income side our low margin rates continue to attract new customers. The Federal Reserve raised interest rates 25 basis points again in June which will benefit our net interest income in the quarters to come and also serves another benefit for Interactive Brokers. To highlight the difference between what we pay on idle cash and what we charge for margin loans and what our competitors charge, our U.S. rates range from 2.2% for the largest loans to 3.4% as the maximum rate on small amounts. Our competitors charge 5% as their minimum all the way up to 10%, that is 50% to 200% more than our maximum rate. Although we are being told by some helpful would have been customers that in some cases our competitors are willing to negotiate and come close to our rates, but they cannot do that across the board because it would seriously impact their income. Yet while our rates are by far the lowest in the industry they are still quite profitable and they attract new customers and more institutions to us. Our prices are available to everyone on our platform. We believe in transparency so we do not have negotiated rates. The prices you see on our site are what you will pay. Your performance is going to be better with us because you are not overpaying for your margin loans. We are equally transparent about what we pay to our customers on a cash balances. For qualified account we pay benchmark Fed funds less 50 basis points on U.S. dollars and comparable in other currencies relative to the rates of the relevant central banks and money markets. Our clients earn 1.41% on the qualified U.S. dollar cash. Each future interest rate increase gets passed on fully to our customers. That is real money on cash that gets automatically credited to your account not cash that has to be moved to and from a different account or invested into a money market fund that must be sold before the cash becomes available for investments or to reduce margin loans or full withdrawal. Our commitment to low rates on borrowing and high rates on cash has helped grow our overall business. We are frequently asked why we feel the need to be priced so much better than our competitors. Customer accounts are very sticky and we must be able to make an overwhelmingly compelling case to our prospective customers to get them to move their accounts. Our pretext profit for the quarter was 271 million adding back the 18 million for this quarter's unfavorable currency impact net of treasury markings gives us 289 million for a 62% pretax margin. Brokerage was 280 million of this and achieved a 64% pretax margin. Our public competitors have pretext margins that are 10%, 20%, or even 30% below ours. 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 second quarter hedge funds and proprietary trading firms were 4% of our accounts, 20% of our clients equity, and 26% of our commissions. Our hedge fund business alone saw 35% jump in customer equity as our low margin rates and high cash interest give more institutions reasons to move their assets to us to improve their returns. For individual customers account to 18% and represent 50% of our total accounts. Individuals our 36% of our customer equity, up 29% and 49% of our commissions up 19% for this customer segment. Commissions benefited from higher volatility in this year's second quarter versus 2017 especially internationally. Also investors are becoming more aware of the practice of brokers selling their customers orders to high frequency traders, a practice that gives investors lower prices on their sell orders and forces them to pay higher prices on their buys. These customers are increasingly attracted to a brokerage platform that dynamically seeks out the potentially best prices at any moment among the many different trading venues as these prices not wanting to push these market away are often hidden. Registered investment advisors and introducing brokers are the other two clients segments. They represent 17% and 29% of our customer accounts, 23% and 21% of our customer equity, and 17% and 8% of our commission income. Our introducing broker segment continues to benefit from two major trends, the increasing regulatory burden worldwide and the growth of the new investor class in developing countries. First, in developed and developing markets around the world there are thousands of brokerage firms, some just being newly formed. For a new firm it is almost impossible in terms of time, knowledge, and money to create the compliance processes and technology needed to be in business. For an existing firm new, more onerous regulations constantly come up so an existing broker must either increase its personnel and regulatory cost significantly to comply or come to us. In both cases the brokers optimal choice is to outsource their account opening, order routing, and back office functions to us. That means our platform will be used for the introducing brokers trading, clearing, and custody so what the brokers customers see is a front end with the brokers logo. Second, in developing countries investors new to the securities markets prefer to use a local broker for investment guidance. That broker will white brand our platform so he can focus on marketing and building his business and not spend time on processing and compliance. The broker does what he does best, customer acquisition and client service while we do what we do best, provide state of the art technology, trade processing, and detailed billing and reporting all at low cost. We continue to roll out new products and services this quarter. We released our new integrated cash management which adds the variety of financial transactions you can do including trading multiple products and multiple currencies from a single Interactive Brokers account. We now offer our recently introduced Master Card, our new bill pay function, and will soon be introducing payroll direct deposits. This means our customers will have less and less reason to leave our platform to transact any of their financial business. Another recently introduced feature are insured bank deposit suite program, gives our customers up to 2.75 million in [indiscernible] FDIC insured deposits. Participation continues to grow and pass $1 billion this quarter. We have the opportunity to accelerate our growth even more. Interactive Brokers' success comes not from maintaining our platform, it comes from what we do all day long, create additional capabilities. We want to remain in the forefront as the best broker with the best technology. This is what we will continue to do to maintain our edge and our growth. Our growth comes from existing customers, adding to their accounts, and from new customers. New customers come to us from big banks and wire houses and from the large online brokers who in turn may get those customers from the wire houses as well before these move on to us. And from people opening brokerage accounts for the first time. More than half of our new accounts come from international customers who appreciate the global access, seamless trading in multiple products classes across multiple currencies, and our best in class pricing. In the U.S. new accounts often come from sophisticated individuals and institutions who recognize the technology we offer at low cost and our superior trade execution. Finally good word of mouth is an important source of new accounts. Because our pricing is the lowest in the industry the only reasons potential clients may not have an account with us or that they either do not know of us, do not believe that our pricing is for real, or they do not trust our offerings. As more and more people come onto and trust our platform though they spread the word that our company and pricing are for real which contributes to stronger account growth. Now Thomas would like to say a few words, Thomas.