Thank you, Simon and good afternoon everyone. Our Q2 results demonstrate continued momentum, with all of our key metrics for the quarter exceeding our expectations, broad based TPV out performance fueled by continued strength in financial services, expense management and BNPL drove both net revenue and gross profit upside. In addition, our continued execution of efficiency and optimization initiatives, when coupled with higher gross profit, led to a significantly lower adjusted EBITDA loss in the quarter. Q2 TPV was 71 billion a year of year, increase of 32% non-block TPV grew more than 15 points faster than block growth. Financial Services lending, including buy now, pay later, and expense management, all grew at roughly the same rate, slightly faster than the overall company, partially offset by on-demand delivery. Financial Services, by far, our largest use case, continues to deliver strong growth despite its size. Our long established customers continue to thrive, while some of our newer customers across new banking and accelerated wage access are experiencing rapid growth, TPV driven by customers who launched within the last two years, is contributing about 10 points to the growth within financial services due to volume that is many multiples larger now than it was in Q2 last year, strong in city growth in lending, including buy now, pay later, continues to be helped by the adoption of our BNPL customers pay anywhere card solutions targeted at their consumers, which are now over 15% of our BNPL volume. Expense Management growth accelerated slightly for the third straight quarter, as the seamless flexibility and control we enable for cards is helping to drive our customers robust performance, especially among our top customers, on demand, delivery growth remained in the double digits. Q2 net revenue was $115 million a contraction of 46% year over year. The most significant impact on net revenue growth was the 60 point growth headwind related solely to the revenue presentation change resulting from the Cash App renewal. As we've described before, this change in revenue presentation is related to the bank and network fees associated with the Cash App's primary payment network volume, which were included in net revenue and cost of revenue prior to Q3 2023. There is an additional nine percentage point decline in net revenue growth due to the Cash App renewal pricing. Block net revenue concentration was 47% in Q2 decreasing 2 points from last quarter. Non-block revenue growth accelerated by over 10 points as we lapped a few prior year renewals and non-block TPV growth remains strong across several use cases. Our net revenue take rate of 18 bps is consistent with last quarter. Q2 gross profit was $79 million, a gross profit margin of 63%. Gross profit margin is generally low in Q2 compared to other quarters as two of our network incentive contracts run April to March, meaning that our incentives reset in Q2 and increase over time within the contract year. On a year over year basis, our gross profit contracted 6% consistent with last quarter. The Cash App renewal lowered gross profit growth by mid 20s, percentage points. As a reminder, the Cash App revenue presentation change does not impact gross profit. Q2 is the last quarter impacted by the Cash App renewal. Therefore our quarterly year over year comparisons will better represent our true business trajectory going forward. The Square renewal lowered Q2 gross profit growth and the low to mid-single digits, which is will start the anniversary in Q4. Our gross profit take rate was 11 bps, 1.4 basis points lower than last quarter, driven by the annual reset of incentives based on the contract year. This is consistent with the impact we see every year in Q2 and has no impact on an annual basis, Q2 adjusted operating expenses were $81 million, a decrease of 3% versus last year. This was mostly due to lower headcount for part of the quarter after our restructuring in May 2023. In addition, we continue to execute our efficiency and cost optimization initiatives well, which exceeded our expectations this quarter. Q2 adjusted EBITDA was negative $1.8 million, resulting in a negative margin of 1%. Interest income was $14 million, driven by continued elevated interest rates. Q2 GAAP net income was positive $119 million, which included a $158 million onetime benefit to stock based compensation recognized in previous periods due to the forfeiture of the Executive Chairman long term performance award. As we mentioned last quarter, this pre-IPO award included service requirements for Jason to be either the CEO or Executive Chairman. The award was forfeited once he stepped down from the Executive Chairman role in June, we have broken this out into a separate line item on our P&L to help isolate the one time impact this quarter and going forward. In May, we received a new $200 million buyback authorization from the Board, which enabled us to repurchase 11 million shares at an average price of $5.39 for $59 million in Q2. We ended the quarter with 1.2 billion of cash and short term investments. Now let's shift to our second half in full year outlook. As we move into Q3 we begin the first chapter of a new era for Marqeta, where we aim to deliver sustainable, profitable growth. We are returning to growth now that we have lapped the resetting of the large majority of our customer contracts and the Cash App renewal in particular. We have established longer term partnerships with our customers where we can work together to drive growth with win-win outcomes. In addition, we expect to be adjusted EBITDA positive going forward at an increasing rate over time, renewed expense discipline, a focus on efficiency and optimization and the real realization of our platform, economies of scale as the business flourishes, has put us on a clear path to GAAP profitability in the coming years. We expect both Q3 and Q4 net revenue growth to be between 16% to 18% in line with what we indicated last quarter. Therefore, full year, net revenue growth is expected to contract 24% to 27% again, consistent with the expectations we shared last quarter. Q3 gross profit growth is expected to grow between 25% and 27% while Q4 is expected to grow approximately three points slower than Q3. As a result, second half growth is consistent with the expectations we shared last quarter. Both quarters are expected to benefit from non-block gross profit growth of over 30% which is accelerating from the first half as we have now lapped heavy renewal activity, as well as the growing contribution from the ramping of new cohorts driven by improving sales last year. The gross profit growth slows a little from Q3 to Q4 mostly due to the difference in year over year comparisons, where Q3 has a slightly easier comp due to higher bank fees last year, while Q4 has a slightly tougher comp due to a strong 2023 holiday season, particularly in BNPL, as well as lapping a platform partner bonus. We expect the gross profit margin to be in the low 70s in both Q3 and Q4 as network incentive levels increase from Q2 therefore we expect full year gross profit growth to be 79% consistent with expectations we shared last quarter. Net revenue growth is expected to be 69 points lower than gross profit growth in Q3 and Q4 primarily for three reasons, all of which we have discussed earlier in the year. First a renegotiated platform partnership with reduced pricing that went into effect in Q1 is leading to a revenue presentation impact as we pass through the proportional savings to Cash App based on the terms of our Cash App contract. This reduces net revenue growth by 3 to 4 points per quarter until it lapse in Q1 2025, but has no impact on gross profit. Second, starting in Q3 we are optimizing the setup of a couple of programs that have been incurring unnecessary cross border network costs. Since we often pass through the cross border network fee premium to our customers, this optimization reduces net revenue growth by 2 to 3 points per quarter until it lapse in Q3, 2025, but has no impact on gross profit. Third, TPV growth in our powered by Marqeta business is growing significantly faster than our managed by Marqeta business. This materially impacts net revenue due to the lack of network and bank fees, but has a much lesser impact on gross profit. As we have previously discussed while the net revenue take rate is lower for our powered by market business, the gross profit take rate is much closer to managed by, this is expected to contribute 1 to 2 points to the growth gap in Q3 and Q4. With our continued success in executing cost optimization and efficiency initiatives, we now expect our adjusted operating expense growth in both Q3 and Q4 to be in the mid-teens. This growth is a result of thoughtful reinvestment in specific capabilities to drive growth and enhanced platform resiliency underway since q4 last year, following our restructuring in May 2023, given our gross profit growth remains on track, while our adjusted operating expenses are trending meaningfully lower we now expect our adjusted EBITDA margin to be 2 points higher than we shared previously. Therefore, our just EBITDA margin is expected to be between 4% and 6% in Q3, 6% and 8% in Q4, and 3% to 5% for the full year. To wrap up, the business is at an exciting turning point as we enter into the second half of 2024. Our Q2 results demonstrate the continued momentum in our business. TPV growth remains robust at 32% fueled by strong results across financial services, expense management and BNPL use cases among both well-established customers as well as those who are newer to our platform. As Simon mentioned, the TPV for 10 of our top 20 customers, grew by over 50% in Q2. Gross profit growth was weighed down by the Cash App renewal for the last time, and accelerating non-block growth signals the strong underlying growth of the business. Well executed efficiency and optimization initiatives continue to lower adjusted operating expenses without sacrificing innovation or platform resiliency, compliance and security. As we begin the second half of 2024 we expect TPV growth to remain over 30% based on the current trajectory and the newer programs that are still ramping. The variety of use cases across consumer and commercial in multiple geographies, showcases the strength of our platform. With the large concentration of contract renewals behind us, the TPV growth is expected to translate into gross profit growth in the mid-20s, with some quarterly variation. Finally, the P&L should reflect the growth commensurate with the underlying strength of the business, the expected gross profit growth combined with the disciplined adjusted operating expense trajectory, gives us the confidence to raise the adjusted EBITDA margin expectations to mid to high single digits in the second half, well ahead of what we expected at the start of the year. This is a great start on our path to profitability. I will now turn it over to the operator for Q&A.