Thank you, Stacey, and thank you for joining us for Marqeta's Second Quarter 2025 Earnings Call. To start, I'll briefly highlight our Q2 results, followed by our progress enabling innovation and business expansion for our customers. I'll conclude with more details about our Q2 financial results and our expectations for the second half of the year. Our second quarter results demonstrate our ability to deliver strong growth while simultaneously increasing our adjusted EBITDA through efficiency and scale. Total processing volume, or TPV, was $91 billion in the second quarter, a 29% increase compared to the same quarter of 2024. Q2 net revenue of $150 million grew 20% year-over-year, driven by the wide variety of use cases we enable for our customers. Gross profit was $104 million, a 31% increase versus Q2 2024, resulting in a gross margin of 69%. This includes an 8.6% growth benefit from the revised accounting policy for estimating and recognizing card network incentives. Adjusted EBITDA was $29 million in the quarter, translating into a 19% margin, fueled by both gross profit growth and operating expense discipline. This all-time high for our adjusted EBITDA demonstrates the significant progress we have made on our path to profitability, falling just shy of GAAP net income breakeven for the quarter. Our focus this year has been on expanding and deepening our customer relationships while enabling their continued growth through innovative programs, value-added services and seamless geographic expansions with consistent and effective execution. One area of strength has been our continued broadening of lending and Buy Now, Pay Later use cases. While BNPL has expanded over the last 5 years, Marqeta remains at the forefront of helping our BNPL customers deliver innovative and user-friendly solutions. In the early days of our company, we were well ahead of other providers in connecting BNPL providers with retailers via instant issuance virtual cards, enabling seamless payment experiences without costly back-end integrations. While others eventually caught up on instant issuance, we continue to leap ahead, enabling BNPL providers with pay anywhere card solutions where they provide their end user the ability to pay later anywhere cards are accepted. Most recently, we have enabled flexible payment experiences for consumers by collaborating with partners to help launch Visa Flexible Credentials to the market, where we were the first issuer processor to deliver this functionality in the U.S. In June, we supported Klarna in their launch of the KlarnaOne Card, making them the second BNPL provider to offer consumers a flexible credential-enabled card. This builds on years of collaboration with Klarna and demonstrates how customers can grow on our platform, both in offerings and geographies. Over the past 4 years, Klarna has expanded from 3 programs to over 10 programs across many countries. In the second half of this year, we will continue to innovate in BNPL. As we announced at last year's Money 20/20, we have been building a new capability that leverages our issuing expertise and BNPL relationships to capitalize on evolving industry trends. This capability embeds within apps and allows consumers to receive multiple BNPL options at purchase while paying with their existing debit card, increasing both distribution and user engagement. We currently have multiple issuing partners and BNPL customers integrating and testing this new service with the goal of a limited release before the 2025 holiday season. The intent is for a broader launch in 2026 with additional partners. Not only are we helping our customers expand through new innovative programs, but we're also delivering more value through additional services. While showcasing the breadth of our offering, value-added services help make our relationships more durable and bolster the economics of our business. While the growth is coming off a small base, in Q2, our value-added services gross profit more than doubled on a year-over-year basis. These value-added services cut across geographies and use cases as customers further rely on Marqeta for our expertise. A product that is seeing great traction and adding value for customers is real-time decisioning. We built our real-time decisioning capability to be issuer-centric and allow customers to create rules and controls to manage transaction fraud based on the expansive and diverse underlying transaction information. Currently, over 40 customers, who contribute almost 20% of our non-Block TPV, are using real-time decisioning, which is a major contributor to our value-added services gross profit growth. We are actively enhancing this product with artificial intelligence and machine learning capabilities to help evaluate transaction risk in real time during the authorization process. This allows customers to customize risk tolerance thresholds and automate transaction acceptance, all with millisecond level response times. We expect machine learning to continuously improve fraud detection through self-learning models that adapt to emerging threats. One of our long-standing and top 5 customers in Europe recently tapped Marqeta for this product. While the customer originally worked with a different partner, they needed more flexibility to meet the differing needs of the various geographies in which they operate. They chose Marqeta not only for the ease of integration, but more importantly, because they believe the flexibility and effectiveness of the tool will help them unlock more growth for their card program on our platform. Europe remains a strong driver of our growth, where TPV continues to more than double year-over-year. Our European business is diverse and driven by many use cases, just like our business in North America. New banking, lending, including Buy Now, Pay Later and expense management use cases are each growing over 100% year-over-year in Europe. This growth is driven by both local customers thriving and multiregional customers expanding into Europe. One of our fastest-growing local customers is planning to expand into 9 new markets in Europe, bringing their total to 26 markets. Further, a U.S.-based expense management customer is expanding to Europe. These are great examples of the strength of our modern card issuing platform, which allows for greater flexibility and easier expansion into new markets. Now our platform capabilities in Europe are going to further expand with the acquisition of TransactPay, enabling even deeper engagement and delivering more value for our customers. After receiving required regulatory approvals, we completed the acquisition of TransactPay on July 31. We expect this business combination will drive value in 3 ways: First, it will enable us to deliver more program management services for customers operating throughout Europe; second, it will position us to support larger customers who are looking to have a single provider for processing, program management and the EMI license; and third, allows us to standardize our offering across geographies and have more control of delivering solutions that are comparable to North America. The acquisition is already driving significant customer interest, and we are already in market with our joint value proposition since Marqeta and TransactPay have long worked together as partners. We expect further integration of offerings over the coming quarters. To wrap up, before moving to the details of our financial results, the business has strong momentum as we head into the second half of the year. Our ability to continuously enable innovation in lending use cases, including Buy Now, Pay Later, is one of the larger drivers of our TPV growth with more expansion opportunities to come in the next few quarters. As our business and our platform matures, we are expanding the services available and finding new ways to add value and deepen our customer relationships. Finally, our Europe TPV continues to grow over 100%. And with the TransactPay acquisition now complete, we will have a more uniform program management offering across North America and Europe. All these expansions of our capabilities, when combined with the breadth of our card issuing expertise, positions Marqeta well to power our customers' expansion into new programs, use cases and geographies. Now let me transition to our Q2 financial results. Q2 was a very strong quarter, significantly outperforming our expectations. Q2 TPV growth accelerated by almost 3 points from Q1 to over 29%. Net revenue and gross profit growth outperformed our expectations by approximately 7 points, driven by much higher volume and a more favorable business mix than we anticipated. In addition, our adjusted operating expenses were much lower than expected due to better execution, but also investment timing delays, delivering much higher adjusted EBITDA of $29 million in the quarter. This business outperformance, combined with the benefit of increased discipline in managing stock-based compensation over the past couple of years, brought us close to GAAP profitability breakeven in the quarter, demonstrating the profitability potential of our business. Q2 TPV was $91 billion, an increase of 29% year-over-year. This $91 billion of TPV was more than $20 billion higher than Q2 of last year, demonstrating our ability to continue to grow the business at scale. Q2 non-Block TPV grew nearly 3x faster than Block TPV, fueled by a diverse set of use cases and customers. Financial services, lending, including Buy Now, Pay Later and expense management use cases continued to drive the majority of our TPV growth. Growth within financial services remained steady with last quarter, which means it is now growing a little slower than the overall company. Block growth within this use case remains as expected, and our fast-growing non-Block neobanking customers continue to grow approximately 5x faster than Block. Expense management growth was also consistent with last quarter and remains over 30% year-over-year, driven by our customers sustaining strong end user acquisition by leveraging modern technology to deliver compelling value propositions. Lending, including Buy Now, Pay Later, year-over-year growth meaningfully accelerated versus Q1 to a level that is much faster than the company as a whole. In fact, Q2 growth accelerated versus Q1 for each of our top 10 customers within this use case. The growth acceleration was primarily driven by a combination of geographic expansion on our platform, increased adoption of pay anywhere card solutions, in some cases, helped by newly available flexible network credentials, increased distribution through wallets and strong user growth among SMB lending solutions helped by new value propositions. On-demand delivery growth accelerated from last quarter, but remains in the single digits due to the maturity of this use case. Q2 net revenue was $150 million, growing 20% year-over-year. The growth accelerated by 2 points versus Q1 as growth accelerated in each of the 4 major use cases. Our Q2 net revenue growth acceleration versus Q1 and the outperformance versus expectations was driven by our strong TPV growth as our net revenue take rate of 16 basis points was in line with last quarter. Block net revenue concentration in Q2 was consistent with last quarter, rising 20 basis points, rounding to 46%. The concentration is down 1 point from Q2 2024. We continue to look for ways to add value and support our largest customer with their growth objectives. Non-Block net revenue growth was similar to last quarter and remains nearly 10 points higher than Block net revenue growth, primarily driven by strong performance of our larger non-Block customers and the ramp-up of new programs launched since the start of 2024. Q2 gross profit was $104 million, resulting in year-over-year growth of 31% and a gross margin of 69%. As a reminder, we revised our accounting policy for estimating and recognizing card network incentives starting this quarter. We are now accruing incentives each quarter based on the forecasted annual contract tier we expect to achieve as opposed to booking the incentives each quarter as they are earned and move through the progressive tiers. As a result, Q2 gross profit growth was lifted by 8.6 points due to the difference in methodologies for the year-over-year comparison. Because our 2 most significant network incentive contracts both have contract years that run April to March, the change in methodology was a benefit in Q2, but will be a drag on growth in the next 3 quarters. Excluding the year-over-year accounting differences, the normalized growth in Q2 would have been over 22%. Normalization aside, the underlying business growth in Q2 was approximately 6 points higher than we expected at the end of last quarter. By driving -- by far, the largest factor driving the gross profit outperformance was strong TPV growth across all our use cases, particularly lending, including Buy Now, Pay Later. In some cases, the higher TPV meant customers moved into a lower price tier, but that was a small impact compared to the volume benefit. Favorable business mix also was a contributor to the gross profit outperformance as the TPV outperformance was all non- Block and skewed a bit towards higher gross profit take rate use cases. Finally, a true-up of an underpaid network rebate earned in prior periods lifted the Q2 growth rate by 1 point. After normalizing for the impact of the revised accounting policy for network incentives, non-Block gross profit growth continues to grow faster than the overall company and is growing a little faster than non-Block revenue growth. Our gross profit take rate was over 11 basis points, 0.3 points lower than last quarter due to our TPV outperformance being mostly driven by our larger customers who have better pricing. Q2 adjusted operating expenses were $76 million, shrinking 7% year-over- year. The year-over-year change was approximately 10 points lower than expected with a little over half or approximately $4.5 million due to a combination of investment timing delays and nonrecurring benefits, while a little less than half was driven by strong execution of optimization initiatives and investment discipline. We had nonrecurring tax benefits of $1.1 million, largely due to state sales tax refunds related to the resolution of audits going back several years. These audits lowered adjusted operating expenses because they are related to sales taxes, not income taxes. The investment timing impacts are primarily driven by delays in headcount additions later within Q2 and into Q3 as well as shifts in a few marketing initiatives to the second half of the year. The lower operating -- adjusted operating expenses that are more ongoing in nature are driven by better organizational design in terms of being less top heavy and more geographically diverse, less reliance on outside professional services to support our key initiatives, and successful efficiency initiatives within our product and technology organizations that is shifting their time to more value-added activities, leading to a higher level of internally developed software capitalization. As has been the case for the past several quarters, we continue to increase efficiency in the technology costs we incur to operate our platform. Also, as a reminder, the year-over-year growth in our adjusted operating expenses was always expected to be the lowest in Q2 due to an easier year-over-year comparison. Q2 adjusted EBITDA of $29 million, a margin of 19% were new all-time highs for both metrics as we make significant progress on our path to profitability. We believe the adjusted EBITDA margin based on gross profit, which was 27%, is a useful data point to illustrate the profitability potential of our business. The Q2 GAAP net loss was a mere $0.6 million, which included $8 million of interest income. We ended the quarter with a little over $820 million of cash and short-term investments before the closing of the TransactPay acquisition. Our share repurchase activity remained ongoing, and we continue to believe the current valuation does not fairly represent the company's value or the market opportunity ahead of us. In Q2, we repurchased 35.2 million shares at an average price of $4.62. When combined with our Q1 repurchase activity, we have repurchased 61.5 million shares at an average price of $4.45 so far this year, which is more than a 12% reduction in the outstanding shares as of the 2024 year-end. As of June 30, we had $107 million remaining on our buyback authorization. Now let's transition to our expectations for the second half of 2025. As Q2 demonstrated, the business is on a nice trajectory, and we are raising expectations for Q3, Q4 and full year. TPV growth remains strong across all verticals, particularly lending, including BNPL and expense management, but some macroeconomic uncertainty remains based on uneven indicators. Therefore, we now expect full year 2025 revenue growth, gross profit growth and adjusted EBITDA margin to each be 3 to 4 points higher than what we shared last quarter. Also keep in mind at the start of the year, we said Q2 had the easiest year-over-year comparison. There are 3 items to note for the second half. First, the impact of our revised accounting policy for network incentives will shift from a tailwind in Q2 to a headwind in both Q3 and Q4. We expect the impact on gross profit growth to be 2 points of drag in Q3 and 4 points of drag in Q4. TransactPay will be a contributor to the business starting in August, lifting both revenue and gross profit growth by an expected 1.5 points in Q3 and 2 points in Q4. At the beginning of the year, we anticipated executing 2 renewals midyear. We made this assumption knowing that we normally execute renewals several quarters before contract expiration. Now that we are actively engaged in discussions with the customers, we still expect the renewals to be executed prior to contract expiration, but we now anticipate them to be executed later in the year, which helps Q3 growth. Therefore, we now expect Q3 and Q4 net revenue to grow between 15% and 17%. As a result, we expect full year 2025 revenue growth to be between 17% and 18%. Gross profit growth in Q3 is expected to be 15% to 17%. Q4 growth is expected to be 3 points lower than Q3 as the drag from the revised network incentive accounting policy increases and the contract renewals start to impact growth, partially offset by the contribution of new programs continuing to ramp. Therefore, we expect full year 2025 gross profit growth to be between 18% and 19%. We continue to be focused with our investments in platform capabilities and innovation. Based on our success improving the efficiency and effectiveness of our resources and technology, Q3 and Q4 adjusted operating expenses are expected to grow in the mid- single digits. Q3 adjusted EBITDA margin is expected to be 12% to 13% and Q4 should be 1 point higher than Q3 as gross profit rises during the holiday season. Therefore, we expect the full year 2025 adjusted EBITDA margin to be between 14% and 15%. This equates to over $85 million in adjusted EBITDA in 2025, which is approximately $30 million more than what we anticipated at the start of the year. In conclusion, our strong financial results in Q2 as well as the small delay of a couple of key customer contract renewals to later this year has led to us significantly raising our full year 2025 expectations for net revenue, gross profit and adjusted EBITDA. The current trajectory of the business, the additional platform capabilities on the road map to be delivered in the second half and the completed acquisition of TransactPay make us confident that we can deliver on our 2025 growth objectives while rapidly improving the profitability of the business and position the company for long-term success. I will now turn the call back over to the operator for questions.