$12.58
$63.31
bear $12.58
base $43.74
bull $63.31
margin of safety $15.00
market price* $238.05
Advanced Energy makes precision power conversion and control equipment. Its products go into semiconductor manufacturing tools, AI and cloud data-center computing, industrial and medical equipment, and telecom and networking gear. Data Center Computing revenue rose 106.7% to $587.3 million in 2025, which is the main reason total revenue recovered to $1,798.8 million after falling from $1,845 million in 2022 to $1,482 million in 2024. Management notes that this market carries lower gross margins than its other markets, and three customers made up 23%, 19% and 12% of 2025 revenue with no long-term purchase commitments disclosed. How we measured earnings. We use owner earnings: operating cash flow, less the cash absorbed by working capital, less stock compensation (a real cost), less only the capital spending needed to keep the business running. Capital spending beyond that, tied to revenue growth, is treated as growth spending. Because lenders are paid before shareholders, we then add back cash interest paid and value the business before debt, subtracting net debt afterward. Per share, this pre-interest business cash flow was $4.49 (2020), $4.24 (2021), $5.72 (2022), $3.03 (2023), $1.78 (2024) and $3.08 (2025). Working capital is a large swing factor here: inventory and receivables built sharply in 2021 and 2022. Amortization of acquired intangibles ($22.1 million in 2025) is a non-cash charge already excluded by this approach; the Artesyn acquisition in 2019 is the reason we measure only from 2020 onward, since earlier years describe a much smaller company. For 2019 to 2022 the working-capital effect is derived as the remainder after net income, depreciation, stock compensation and deferred taxes, so small other non-cash items sit inside it; 2023 to 2025 use the filing's itemized lines. Earnings level. The median of 2020 to 2025, a full cycle from the 2021-22 boom through the 2023-24 downturn and recovery, is $3.66 per share of pre-interest business cash flow. We use this level rather than the strongest or weakest years. Trailing growth was strong: 2025 owner earnings per share of $2.69 were about double 2024's $1.33, and business cash flow rose 73%. Our base case starts at the median rather than assuming further growth from the 2025 level of $3.08. In the first half of 2026, revenue was $1,085.1 million versus $846.1 million a year earlier, and second-quarter revenue was $574.1 million, but cash flow was weighed down by a $208 million increase in receivables and inventory (partly offset by $92 million higher payables) and capital spending of $86.1 million against operating cash flow of $79.0 million. That confirms demand is strong, but two upswing quarters with heavy working capital and capacity spending do not justify lifting the normal level; the bull case carries that upside. Base case, $43.74 per share. Business cash flow stays at $3.66 per share for 25 years, then ends. We credit no growth: the data-center and semiconductor demand surge is real but depends on customers' spending decisions, which is not secured by contracts. The 25-year life rests on positive owner earnings in every year from 2019 to 2025, including the 2024 trough; we assume nothing lasts beyond 25 years. Business value $46.79, net debt $3.05, difference $43.74. Bear case, $12.58 per share. The 2022 to 2024 downturn is our template: revenue fell about 20% and business cash flow per share fell 69%, from $5.72 to $1.78. We assume that trough level lasts four years (2019 was similarly low at $1.89), then a recovery only to $2.60, the 2023-2025 average, held for 21 more years, reflecting the customer concentration above. We also assume $570 million of today's cash is spent on capacity expansion that earns nothing extra, consistent with capital spending of $107.4 million in 2025 and $86.1 million in the first half of 2026. Business value $30.40, net debt $17.82, difference $12.58. Business cash flow of about $69 million a year in the trough comfortably exceeds the interest bill ($14.7 million paid in 2025). Bull case, $63.31 per share. Business cash flow returns to $5.70 per share, essentially the 2022 level of $5.72, and holds for 10 years before easing to $4.50 for 15 more, as the capacity now being built is absorbed. Business value $66.36, net debt $3.05, difference $63.31. Debt. At June 30, 2026, borrowings were $1,264.2 million (up from $567.5 million at year-end 2025) and cash $1,396.5 million (up from $791.2 million). We treat $250 million of cash as needed to run the business, so net debt is about $118 million, or about $3.05 per share on 38.6 million shares. Debt includes $575 million of 2.50% convertible notes due September 15, 2028 (conversion price about $137.46; principal is settled in cash, and hedges extend the effective price to $179.76) and a term loan and revolver maturing May 8, 2030; that maturity can be pulled forward to 91 days before the notes come due if cash plus undrawn revolver falls below 120% of the notes' redemption amount. Reported diluted shares were 42.3 million in the second quarter of 2026 versus 38.6 million for 2025; we could not fully reconcile this increase from the filings available and value the business on 38.6 million shares. What would make this wrong. Loss of one of the three largest customers, a deeper or longer semiconductor downturn than 2023-24, or capacity spending that earns less than expected would push results toward the bear case; earnings sustaining the first-half 2026 pace would move toward the bull case. The previous analysis used a different method, so its figures are not comparable. Margin-of-safety price, $15.00. We are fairly sure of the $3.66 level because it is a median across six years, but the range inside it ($1.78 to $5.72) is wide and the business depends on a few customers without purchase commitments. The worst plausible outcome is a repeat of 2024 for several years combined with expansion spending that does not pay; the balance sheet would survive that, since interest is small relative to trough cash flow and cash roughly matches debt, but shareholders' value would drop to about the bear value. If we are wrong about the normal level or the life of the earnings, shares are worth the bear figure. At $15, the whole business, counting net debt, is priced at about $18 per share against $3.66 of normal annual cash flow, a yield near 20%, and even the 2024 trough of $1.78 would yield around 10%. The price assumes a holding period of several years for the cycle to turn, and the business funds its own investment from cash flow during that period.