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Courtney Knight
Good morning, and thank you for joining us on this conference call to address Cipher Mining's business update for the second quarter of 2025. Joining me on this call today are Tyler Page, Chief Executive Officer; and Edward Farrell, Chief Financial Officer. Please note that our press release and presentation can be found on the Investor Relations section of the company's website, where this conference call will also be simultaneously webcast.
Please also note that this conference call is the property of Cipher Mining and any taping or other reproduction is expressly prohibited without prior consent. Before we start, I'd like to remind you that the following discussion as well as our press release and presentation contain forward-looking statements. These statements include, but are not limited to, Cipher's financial outlook, business plans and objectives and other future events and developments, including statements about the market potential of our business operations, potential competition and our goals and strategies.
Forward-looking statements and risks in this conference call, including responses to your questions, are based on current expectations as of today, and Cipher assumes no obligation to update or revise them, whether as a result of new developments or otherwise, except as required by law. Additionally, the following discussion may contain non-GAAP financial measures. We may use non-GAAP measures to describe the way in which we manage and operate our business.
We reconcile non-GAAP measures to the most directly comparable GAAP measures, and you are encouraged to examine those reconciliations, which are filed at the end of our earnings release issued earlier this morning. I will now turn the call over to our CEO, Tyler Page. Tyler?
Rodney Tyler Page · Operator
Edward John Farrell
Thank you, Tyler, and hello to everyone on the call. I'd like to remind everyone that today, I will be discussing our performance for the second quarter of 2025, which ended on June 30. Before I dive into our financial results, I'd like to highlight this quarter was not only one of strong execution, but also a disciplined capital deployment to achieve that execution. In the second quarter, we successfully leveraged our first-ever convertible offering to complete Black Pearl Phase 1 in a thoughtful manner.
We strategically sized this transaction in parallel with commercial discussions with our rig provider to ensure we had a direct use of the proceeds that would be accretive to the company. Of the $172.5 million of gross proceeds from the offering, $108 million was used primarily to purchase the latest generation of miners to be installed at Black Pearl. By paying upfront, we were able to negotiate for an expedited rig delivery schedule to avoid broader tariff impact.
In addition, we received a 10% reduction in our outstanding obligation on the rigs as well as incremental value from Bitcoin linked call options. We now expect the full order to be delivered in hashing by the end of the third quarter. We look forward to seeing the full impact from these new rigs captured in production and revenue numbers next quarter, and we are proud to have achieved this growth in a capital- efficient manner.
Let's now turn to a review of our financials, beginning with our sequential and year-over-year financial performance outlined on Slides 15 and 16. In the second quarter, we reported $44 million in revenue, down 10% from $49 million in the first quarter of this year. While the late June energization of Black Pearl contributed positively to revenue, rising network hash rate and rising summer power prices in Texas, which increased curtailment led to a slight dip in top line.
Increased curtailment allowed the company to avoid CP penalties and maintain its positions of having some of the lowest power costs in the industry. In addition, insights from earlier summer months will inform further refinements to the curtailment model for the remainder of the summer. Moving down the slide. For the quarter, we reported a GAAP net loss of $46 million or a net loss of $0.12 per share. Bottom line results were largely impacted by a decrease in fair value of our power purchase agreement at Odessa.
The expected but substantial fluctuations in fair value are influenced by prevailing forward power prices and the time value for the remaining term of the contract ending July 2027. As I've discussed previously, the true value of the contract lies in its provision of low-cost fixed price power at our Odessa site. Excluding that and other noncash expenses, such as the impact of depreciation and amortization, deferred income tax expense, the change in fair value of the warrant liability, share-based compensation and nonrecurring losses, we reported second quarter adjusted earnings of $30 million or $0.08 per share, up roughly 400% from $6 million last quarter.
Moving to Slide 16. In the second quarter of 2025, we achieved $7 million increase in revenue compared to the second quarter of 2024. This result reflects the upgrade to our Odessa rigs in Q4 of last year as well as the production increase from bringing Black Pearl online at the end of the quarter, which partially offset the pre-halving portion of this quarter last year. We continue to take pride in our ability to navigate the post-halving environment driven by a low-cost power and operational efficiency.
As noted earlier, due to the expected fluctuations in the value of our power purchase agreement at Odessa, we saw a decrease in GAAP earnings year-over-year. This quarter, we reported a GAAP net loss of $46 million or a loss of $0.12 per share compared to a net loss of $15 million or $0.05 per share in the second quarter of the prior year. In addition to PPA fluctuations, we also changed our depreciation schedule for the useful lives of miners from 5 years to 3 years in Q2 of last year.
That, plus the increase in the number of miners we are now depreciating given the upgrade at Odessa meant this quarter's GAAP earnings are a significantly higher impact from depreciation than the same quarter of the prior year. Our adjusted earnings, which excludes these noncash expenses, increased significantly from a loss of $3 million or $0.01 per share to earnings of $30 million or $0.08 per share. Let's move on to Slide 17 and take a deeper look at the results of our operations.
For the quarter, we mined 434 Bitcoin at Odessa and 10 Bitcoin at Black Pearl, bringing our production to 444 Bitcoin mined in total across our wholly owned sites. This production generated $44 million in revenue at an average price of roughly $99,700 per Bitcoin. This compares to 524 Bitcoin mined in Q1 2025 at an average price of $93,500 per Bitcoin, resulting in $49 million in revenue. While we began to see some contribution from Black Pearl this quarter, equivalent to about $1 million or 2% of quarterly revenue, it is important to note that the site came online near the end of the quarter.
As a result, we expect significant greater impact next quarter when we'll benefit from a full quarter of production. Our consistent low-cost power remains a critical factor in maintaining attractive unit economics and our cost of revenue remained relatively flat quarter-over-quarter and year-over-year. Now let's shift our focus to operating expenses. Compensation and benefits decreased year-over-year, reflecting the efficiencies gained through scale without the need for significant changes to staffing.
The lack of significant staffing changes aligns with our continued confidence that we have the right team in place to support our ongoing growth. General and administrative expenses, which include IT, corporate insurance, professional fees, occupancy and other public company costs remained flat quarter-over-quarter and year-over-year. For the quarter, depreciation and amortization expense totaled around $44 million, representing a 2% increase from the prior quarter and 120% increase year-over-year.
Year-over-year increases are primarily driven by our Q4 upgrade at Odessa, which brought online over 36,000 new mining rigs. As discussed previously, we also changed our accounting policy in Q2 of last year for mining rig depreciation, decreasing the estimated useful life of miners from 5 years to 3 years. This change, coupled with the increased number of mining rigs in operation explains the significant year-over-year increase.
The oldest rigs in our fleet will cease depreciating in the fourth quarter of this year, but I'd like to note that even when these older rigs are fully depreciated, they can still generate strong returns when deployed strategically. This was demonstrated at Black Pearl Phase 1, where we profitably deployed old rigs while awaiting new miner deliveries. Moving down the page, equity and losses of equity investees for the quarter was $2 million, down $5 million from the previous quarter.
In Q2, we recognized a $17 million unrealized gain on the fair value of Bitcoin inventory compared to an unrealized loss of $20 million in Q1. Unrealized gains and losses on Bitcoin reflect the mark-to-market accounting of our holdings. The spot price of Bitcoin at quarter end increased compared to the end of Q1 as did our Bitcoin and treasury, which ended the second quarter at 1,046 Bitcoin held. Now let's turn to our non-GAAP measure slide, where we reconcile our adjusted earnings.
When adjusting our second quarter GAAP net loss of $46 million, we added back $76 million to the items listed, resulted in adjusted net earnings of $30 million for the quarter. This compares to an adjusted net gain of $6 million in the previous quarter and a loss of $3 million in the previous year. Now let's turn our attention to the balance sheet. On Slide 19, our total current assets at quarter end were $220 million.
A large portion of that balance was Bitcoin held totaling $112 million. In addition, our cash position increased from $23 million in March to $63 million in June, an increase of $40 million from the previous quarter. The increase in cash primarily reflects the remaining proceeds from our convertible offering, along with opportunistic Bitcoin sales. As we discussed in depth on our last earnings call, we actively manage our treasury, either selling or holding every Bitcoin mine and remain disciplined in our approach to capital management.
I'll quickly cover some additional balance sheet line items as of June 30. Our prepaid expenses and other current assets amounted to $7 million. This balance primarily reflects call options granted to us by our rig provider as part of the negotiated transaction to lower the cost of the latest generation miners being installed at Black Pearl Phase 1 and to mitigate tariff exposure. As discussed, our Odessa power contract is reflected as a derivative asset on our balance sheet.
Over the quarter, we had a mark-to- market loss of our PPA driven by decreases in time value of the contract as well as declines in the forward curve for power prices. The PPA ended the quarter valued at $78 million, down from $93 million prior quarter. While there are expected substantial fluctuations in the reported value quarter-over-quarter, the true value of this contract lies in its provision of low-cost fixed price power at our Odessa site.
Other significant assets include property and equipment totaling $474 million. Deposits on equipment of $183 million primarily consist of deposits for mining rig purchases. As a reminder, our Bitmain and Canaan rig orders are fully funded, and we expect to have all new machines delivered to hashing by the end of this quarter. We look forward to seeing the production benefit of this investment. Additionally, we hold intangible assets totaling $10 million with $7 million attributable to ERCOT approval at Black Pearl and $3 million related to capitalized software.
These balances are net of $1 million in accumulated amortization. At the end of the second quarter, our equity investee interest in Alborz, Bear and Chief JV stands at $46 million, and we had operating lease assets of $12 million. We had security deposits totaling $14 million, down from $20 million last quarter due to our receipt of the Barber Lake Encore deposits. The remaining balance primarily represents Encore deposits for construction of interconnects at various data centers in our pipeline.
Current liabilities declined significantly quarter-over-quarter, decreasing from $139 million in Q1 to $53 million at the end of Q2, a 62% reduction. This was primarily driven by lower construction-related liabilities following the completion of Black Pearl as well as decrease in accrued expenses tied to the final payment submission for our previous rig order. Our accounts payable decreased to $15 million from $30 million, and our accrued expenses decreased to $30 million from $66 million.
Lastly and importantly, I want to highlight this quarter, we reduced our short-term borrowings from $35 million to 0. We've always taken a disciplined approach to treasury management, ensuring we're well prepared for any capital needs. At times, that includes borrowing against our Bitcoin holdings to provide near-term liquidity while preserving inventory or selling production forward. However, given the strength of our current cash position, we made the decision this quarter to fully pay down our short-term debt and fulfill our deliverable forward obligation fully.
We're proud to have no remaining near-term obligations on the balance sheet, and we will continue to manage our treasury with discipline and flexibility. Before we conclude, I'd like to thank everyone for joining today's call. We're proud of the progress we've made this quarter and the growth achieved, and we remain focused on disciplined execution and capital efficiency going forward. Thank you for your continued support, and we look forward to updating you on our progress next quarter.
At this time, I will pause and Tyler and I would be pleased to take your questions.[ id="-1" name="Operator" /> Our first question comes from Bill Papanastasiou with KBW.
Bill Papanastasiou
I was hoping we could first chat on the Phase 2 strategic plan that was mentioned earlier in the call. Are you able to quantify the time to convert from hydro Bitcoin mining to AI HPC compute? And maybe just for comparative purposes, how would that compare if you were to start from ground zero today going from nothing to essentially AI HPC compute?
Rodney Tyler Page · Operator
Bill Papanastasiou
I appreciate that color. And then just digging deeper into your remarks about hyperscaler participation. Curious to hear what you think would trigger them to choose an operator in your peer set to be a dance partner. How far are we from seeing that happen? What are you seeing from boots on the ground perspective? And are you getting a sense that they're more open to dealing with players in the peer set following the recent deals by CoreWeave and COR42?
Questions & answers
Rodney Tyler Page · Operator
Justin Pan
Q1
This is Justin from Brian Dobson. Exciting hybrid strategy for Black Pro Phase 2. I was wondering if you could talk about any potential differences in costs affiliated with the hybrid model compared to a pure mining or a pure Bitcoin site? And then -- and is it something you would consider for future sites in the development pipeline?
Rodney Tyler Page · Operator
John Todaro
Q2
Congrats on kind of the additional HPC pipeline. First question, when you think of a financing partner on board for the JV, could you just remind us of the split and expected economics? And also, would Phase 2 at Black Pearl include that same JV structure?
Rodney Tyler Page · Operator
John Todaro
Q3
Got it. Okay. That's helpful. Yes, and that was what I was looking for. And then just going back to that question, the gentleman from Clear Street asked. So if I add it up, I'm still getting like $9.5 million per megawatt. If we just assume the same redundancy needs as, say, like CoreWeave needs with Applied Digital, are you kind of back into that $11 million to $13 million per megawatt for a greenfield build? Or is there cost savings on the flexible model?
Rodney Tyler Page · Operator
Brett Knoblauch
Q4
On the Bitcoin mining side, 23.5% by the end of the third quarter, should we be expecting anything else? Or would that really -- or anything else after that? Or will that be really dependent on what you guys initially decided to do with the second phase of Black Pearl? And it sounds like that is a 2026 timing?
Rodney Tyler Page · Operator
Michael John Grondahl
Q5
Just trying to understand what sites would you say are being actively marketed for HPC right now? Is it basically Barber Lake and maybe Phase 2 Pearl? How would you characterize what you're actively marketing today for HPC?
Rodney Tyler Page · Operator
Michael John Grondahl
Q6
Got it. And then maybe just as a follow-up, any specific comments on Stingray? How are you feeling there? What kind of color?
Rodney Tyler Page · Operator
Christopher Charles Brendler
Q7
Tyler, I wanted to ask a question on another follow-up on Barber Lake and just sort of from a cadence standpoint and the time line here. It felt like last quarter with the Fortress announcement that things were making progress. And I know from other folks that I've talked to in the space that these things do ebb and flow. You've had -- I think certain companies have had serious discussions and then had them follow up had similar experiences where you've had made a lot of progress and think you're getting close and had folks walk away?
Or has it been more of a steady progress towards a contract? And just maybe take your temperature on your optimism of getting something done before year-end for Barber Lake would be great.
Rodney Tyler Page · Operator
Christopher Charles Brendler
Q8
Makes sense. I love the craft analogy, is there any time line on the Fortress agreement that you have to abide by and get something done by? Or is it pretty open-ended?
Rodney Tyler Page · Operator
Christopher Charles Brendler
Q9
Okay. I'm going to ask a Bitcoin mining question.
Rodney Tyler Page · Operator
Christopher Charles Brendler
Q10
Yes, exactly. So this is a bit nuanced, but I know you mentioned it's clear in the slide deck that the average power cost ticked up this quarter. $0.07 to sort of $0.031-ish and it's also the impact of Black Pearl. But the cost of revenue only increased very slightly sequentially. So our model is like having trouble balancing that cost of power increase with the relatively stable sequential change in cost of revenue. So is there anything impacting those numbers that makes that math a little wonky.
Rodney Tyler Page · Operator
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