Thanks Michael. The fourth quarter was unusual for Magnite. We continued with very significant momentum in our CTV business and came in above the high end of top line expectations with 23% year-over-year growth in contribution ex-TAC. As Michael mentioned, however, we experienced an unusual post-election pause in our DV+ business during the fourth quarter. In the run up to the election we saw normal levels of paid impressions and CPMs in our non-political business with CPMs roughly flat year-over-year. Immediately following the election, CPMs dropped significantly 15% to 20% down through the end of the quarter. As a result, we did not see the normal holiday ramp in our DV+ plus business resulting in 1% growth for the quarter and the underachievement compared to our expectations. This was radically different from our experience in both the 2020 and 2022 election cycles and this trend was consistent with the weaker than expected results reported by other open Internet industry players. When all was said and done, we saw soft vertical demand in DV+ in 13 of the 18 categories we track. In particular, we witnessed pullbacks in consumer categories, health and fitness, retail, automotive and food and beverage. Other than the benefit from political, the only other bright spot was technology. As Michael mentioned and as I'll highlight in guidance, DV+ has returned to mid to high single digit growth in Q1, which gives us some comfort that lower than expected DV+ results in Q4 were an anomaly. Turning now to full year results. We generated record contribution ex-TAC of $607 million and process ad spend of over $6 billion. We also generated record adjusted EBITDA of $197 million and $118 million of free cash flow. We ended the year with $483 million in cash and our net leverage ratio has been reduced to 0.4x. Our business is performing well and our capital structure is robust. Total revenue for Q4 was $194 million, up 4% from Q4 2023. Contribution ex-TAC was $180 million, up 9%. CTV contribution ex-TAC was $78 million, up 23% year-over-year and again above the top end of our guidance range. Ad spend growth and strong momentum with our SpringServe ad serving drove the outperformance in the fourth quarter. DV+ contribution ex-TAC was $102 million, an increase of 1% from the fourth quarter last year as we discussed. Our contribution ex-TAC mix for Q4 was 43% CTV, 40% mobile and 17% desktop. From a vertical perspective, as expected and as we discussed last quarter, political was the strongest performing category at approximately 6.5% of contribution ex-TAC. Total operating expenses which includes cost of revenue for the fourth quarter were $154 million, a slight increase from $152 million for the same period last year. Adjusted EBITDA operating expense for the fourth quarter was $104 million within our guidance range. The increase from $95 million last year was primarily driven by personnel software development costs. I'd like to touch on our tech stack cost initiatives that particularly impact our CTV profitability and scale. First, our tech team continues to make gains in reducing per unit cloud costs which have allowed us to manage significant ad request volume increases with modest cost increases. To this end, our cost per ad request in 2024 has decreased 26% in DV+ and 45% in CTV. Our focus on scale improvement and efficiency is one of our top priorities, and these efforts will continue in 2025. In addition to our per unit cloud cost efforts, we've also been increasing our focus on optimizing our hybrid structure to move additional functions from cloud to on-prem. We expect that these initiatives will lead to increasing margin expansion rates in 2026 and beyond with some potential for benefit in the second half of this year. We will have more to report in coming quarters on these efforts. Net income was $36 million for the quarter compared to net income of $31 million for the fourth quarter of 2023. Adjusted EBITDA grew 9% year-over-year to $77 million, reflecting a margin of 42%, which compares to $70 million last year. As a reminder, we calculated adjusted EBITDA margin as a percentage of contribution ex-TAC. GAAP earnings per diluted share increased 50% and it was $0.24 for the fourth quarter of 2024 compared to $0.16 for the fourth quarter of 2023. Non-GAAP earnings per share in the fourth quarter of 2024 grew 17% and was $0.34 compared to $0.29 last year. Reconciliations to non-GAAP income and non-GAAP earnings per share are included with our Q4 results press release. Operating cash flow, which we define as adjusted EBITDA less CapEx, was $64 million for the quarter. Cash generation was very strong in the fourth quarter and our cash balance at the end of Q4 was $483 million, an increase of 96 million, or 25% from the end of Q3. Capital expenditures, including both purchases of property and equipment and capitalized internally used software development costs were $12 million for the quarter, bringing the total to $52 million for the full year. Our net interest expense for the quarter was $5 million. As mentioned, our net leverage ratio was 0.4x at the end of Q4, a sequential improvement from 0.9x at the end of Q3. We continue to focus on managing shareholder dilution after having successfully lowered our leverage. For the full year 2024, our repurchase program and withhold to cover activity have effectively reduced dilution by 3.2 million shares for $37 million. As a result, the increase in total shares outstanding at the end of 2024 was limited to 2% compared to the end of 2023. We currently have $110 million remaining in our authorized share repurchase program, which we will look to deploy strategically. I'll now share our expectations for the first quarter of 2025 and our current thoughts about the full year. For the first quarter we expect contribution ex-TAC to be in the range of $140 million to $144 million,. Contribution ex-TAC attributable to CTV to be in a range of $61 million to $63 million, contribution ex-TAC attributable to DV+ to be in the range of $79 million to $81 million and we anticipate adjusted EBITDA operating expenses to be between $111 million and $113 million, which implies adjusted EBITDA margin of over 20% for Q1 at the midpoints. For the full year we anticipate total contribution ex-TAC to grow above 10% or mid-teens excluding political. Adjusted EBITDA to grow in the mid-teens with adjusted EBITDA margin to expand at least 100 basis points over 2024 and free cash flow to grow in high teens to 20%. In addition, we expect total CapEx to be approximately $60 million supporting our tech stack efficiency efforts as I noted earlier. Overall the fourth quarter and full year 2024 were strong for Magnite despite the unexpected volatility in the post-election DV+ results. We had some very significant wins during the year including Netflix and continue to add cutting edge capabilities to our industry leading CTV tool set. We've also set a high priority on the cost efficiency of our tech stack and have made significant strides this year. The team is performing well and we are excited about what the future holds in 2025 and beyond. And with that, let's open the line for Q&A.