Emily Leproust
Analyst · Goldman Sachs
Thank you, Angela, and good afternoon, everyone. I am thrilled to be here today to share the remarkable achievements and outstanding performance our company has delivered over the past quarter. Our strong results validate the hard work, dedication and innovative spirit that define our team at Twist. We've made significant strides in executing our growth strategy, increasing our customer base and driving to our profitability for the business.
Our [indiscernible] platform for making cfDNA remains at the core of our product portfolio, defines our competitive advantage in all markets and enables our flyway for growth and the strong financials we share today.
Over the course of the second quarter, we continued our robust growth trajectory, increasing revenue 25% year-over-year to $75.3 million. Orders for the quarter reached a record level of over $93 million. The strong quarter was driven by growth in our [ synthetic ] biology product line, including Express Genes and bolstered by consistent strength in NGS.
We reported a 49% gross margin for the quarter, an increase of 10 margin points versus the same period last year. We do see put and takes in the margin quarter-to-quarter, which Adam will discuss in his remarks. That said, over the next several periods, we expect the initiatives we are thinking will drive us to a gross margin above 50% by the end of fiscal 2025.
To that deeper for SynBio, revenue increased to $29.8 million, with very strong orders of $44.9 million. SynBio revenue grew 24% year-over-year and 11% sequentially. Other than SynBio included significant blanket purchase orders where customer placed a single blanket order for a large channel and then orders against that PO over the course of the next several quarters. Twist receives blanket POs routinely, primarily in the first quarter of the calendar year as budget reset. That said, these level of blanket still exceeds prior year significantly. We believe this increase is due to our diversified product line, including Express Genes and consistent rapid turnaround times, both of which give our customers confidence to commit with Twist for the year.
As you know, in late January, we expanded our Express Genes offering from a limited launch including about half of our clonal gene volumes to include all clonal genes. At that time, we began a marketing campaign and outreach to potential customers buying from competitors or making their own changes. So still relatively early days for Express Genes, we are pleased with the progress to date. Keeping in mind that our current quarter, our fiscal third quarter will be the first full quarter that includes all Express Genes offering. We want to provide a bit more color around the success to date.
Approximately the 15%, 1-5%, of clonal genes revenue for the second quarter came from Express Genes. As of March 31, we had received more than 1,600 orders for Express Genes since launch in November with more than 700 accounts purchasing Express Genes to date. This includes more than 100 net new accounts specific to Express Genes. We define making accounts as a new customer organization entirely or it can be a new shipping address as an existing institution, both counts as net new accounts.
Customers received Express Genes in about 5 to 7 days, significantly faster than our standard gene turnaround time. For this speed, this up into a premium price. We vary this premium based on capacity within our lab Twist in Oregon facility, the site custom-built for this product line and a side of LR for expansion into other significant products. Because we make all clonal genes on the Express time line, the increase in price premium fully dropped to gross margin.
At the end of February, we began differentiating the premium between academic industry customers. Within these 2 groups, we'll be seeing a higher premium, a common practice in the industry.
Moving to NGS. We posted another very strong quarter as revenue grew to $40.8 million, an increase of 40% year-over-year with $42.5 million in orders. This quarter, strength for NGS portfolio came from customers who have advanced their assets into clinical studies and became commercial as well as growth in the smaller NGS customers who are earlier in the development processes. Several clinical customers include Twist and their assets, and we are proud the incredible progress it is making for patients in rare disease, cancer detection and early cancer detection, and monitoring of minimal residual disease.
Our panels are incorporated into a number of differences, sometimes competitive test and what we see over time is that providers are adopting these tests. The volume of commercial test increases with patient adoption as each sale test requires with DNA. We have customers who are doing very well, leveraging the Twist chemistry advantage and others who need additional funding to continue scaling. The benefit of our business model is that we have diversified our revenue across many customer navigations with no single customer accounting for more than 10% of our revenue.
In addition, we continue to add smaller accounts that have the potential to grow significantly as the volume of their application or test brands.
Up until this year, our NGS product portfolio has been focused primarily on target enrichment for the analysis of DNA, RNA and [indiscernible] levels. As we have said before, we want to offer our customers a complete workflow solution from the sample to the sequencer, and we are confident that our latest products solidify our leading position in the liquid biopsy and MRD while expanding our differentiation within other areas of the workflow.
Importantly, we introduced differentiated products to a science and clinical capabilities. In February, we did an incredibly powerful cell-free DNA library prep that captures many molecules that may otherwise be missed in these assets, because the sensibility of liquid biopsy and [ research assay ] begins with laboratory prep, capturing more molecule can improve the signal-to-noise ratio and the sensitivity of the test. We believe our innovative cfDNA laboratory prep provides an advantage here, and the initial commercial performance is very encouraged.
During the quarter, [indiscernible] technology early access for a second truly differentiated laboratory prep, the Ultra High-Throughput laboratory prep. We believe this is the highly differentiated product we need to contact customers using microarray to NGS panels plus sequencing with applications in AgBio and genotyping. We believe this is a very large market opportunity, and we expect that these products will drive NGS revenue in the medium to long term as it requires a change in workflow for the customers from microarray readers to sequences.
Separately, for our customers in Europe, we launched a CE-marked portfolio of Precision Dx products to support the evolving regulatory landscape in that geography. This is our first foray to the regulated market, and we look forward to continued evolution in markets beyond Europe.
We believe our experience with regulated products will inform any future product developments driven by FES move to regulate laboratories test or [indiscernible] in the U.S.
For Biopharma, revenue was $4.7 million with order increasing to $5.8 million. We'll continue to deliver on programs for our partners across the spectrum of offerings. Importantly, we expect at least 1 partner to initiate human studies with an antibody discovered in Twist Platform within the next year.
For data storage, we remain focused on technology development and enablement of the Terabyte Century Archive workflow for early access in calendar 2025. Progress continues, and we see this area of our business as a valuable asset with optionality at multiple points of development.
As we look at margins, in fiscal Q1, we reported a strong gross margin driven primarily by mix and significant NGS revenue. We maintained our margin in the second quarter, beating our guidance by 2 points with continued strength in our NGS business as well as Express Genes contribution. As we look over the next 18 months, in addition to driving revenue growth, which is the primary driver of margin, we intend to continue to focus on margin improvement initiatives, including product investment, operational excellence, insourcing and process optimization.
In addition, we are in the process of negotiating contracts with suppliers and in some cases, with customers willing to provide volume commitments for fixed premium pricing in Express Genes. We believe these initiatives as well as further volume leverage of our fixed costs, enable our ability to improve our margins by several points, and we see past gross margin north of 50% by the end fiscal of 2025.
With that, I'll turn over the call to Adam to discuss our financials.