-$12.54
$45.79
bear -$12.54
base $0.16
bull $45.79
margin of safety $5.00
market price* $61.70
Business condition attached to the margin of safety
Ambarella reports a full fiscal year of positive owner earnings after stock compensation: operating cash flow excluding working-capital swings must exceed stock-based compensation plus capital spending, counting installment payments for licensed design software and IP as capital spending.
Ambarella designs video-processing and AI-inference chips (systems-on-chip) used in enterprise, public-infrastructure and home security cameras, automotive cameras, robots, aerial drones, sports cameras and other edge devices. Its CVflow AI accelerator runs neural networks directly on the device; its newest CV7, CV3 and N1 families are built on 4- and 5-nanometer processes, and its CV3-AD family targets central automotive domain controllers for driver assistance and autonomy. The company is fabless: Samsung makes the substantial majority of its chips in Austin, Texas and South Korea, and Ambarella recently taped out its first 2-nanometer design. About 70% of fiscal 2026 revenue came through a single non-exclusive sales representative and fulfillment partner, WT Microelectronics, which covers Asia outside Japan; by billing location, 70% of revenue was billed to Taiwan and another 18% elsewhere in Asia Pacific. Ambarella has no borrowings and held $312.6 million of cash and marketable securities at January 31, 2026. It runs research centers in Hsinchu, Taiwan and in Shanghai and Shenzhen, China alongside its Santa Clara headquarters, and it names Horizon Robotics, Mobileye, Novatek, NVIDIA, Qualcomm and SigmaStar among its competitors, so trade restrictions and cross-Strait tensions are a real operating risk. What the business earns for owners. We measure the cash an owner could take out of the business: operating cash flow excluding working-capital swings, minus stock-based compensation, minus the capital spending needed to stay competitive. Two judgements matter. First, we treat stock compensation as a real cost. Ambarella recorded $98.0 million of it in fiscal 2026, 25% of revenue, and diluted shares rose from 32.7 million in fiscal 2019 to 42.7 million in fiscal 2026, so the cost shows up directly as dilution of existing owners. Second, Ambarella buys much of its chip-design software on installment plans, and those payments appear in the financing section of the cash-flow statement ($6.2 million in fiscal 2026). We count them as capital spending alongside direct purchases of equipment and licenses ($15.5 million). On that basis owner earnings were positive in fiscal 2017 ($1.70 per share) and 2018 ($0.62), when the company mainly sold video chips for consumer cameras, and negative every year since: -$1.13, -$1.28, -$1.70, -$0.82, -$2.10, -$3.71, -$2.73 and -$1.63 per share for fiscal 2019 through 2026. The business does produce cash before stock compensation (about $28 million in fiscal 2026), but not enough to cover the stock it issues to employees. The median of fiscal 2022-2026, a window that spans a full chip cycle from the fiscal 2022 peak through the fiscal 2024 inventory correction (revenue fell 33%) and the recovery, is -$2.10 per share. We start the forecast from the better fiscal 2026 level of -$1.63 because the improvement has held through both quarters of fiscal 2027 reported so far: first-half revenue rose 15% to $208.5 million, the net loss narrowed to $24.8 million from $44.3 million, and stock compensation fell to $44.6 million from $51.3 million. First-half operating cash flow was negative $25.9 million, but that came from working capital rather than the business itself: payables fell $26.4 million, reversing a $33.7 million build in fiscal 2026, and inventory rose $24.6 million. What drives the cases. Revenue grew 26% in fiscal 2025 and 37% in fiscal 2026, which the company attributes to higher unit shipments and a larger share of higher-priced AI inference processors. In past upswings each extra dollar of revenue added roughly 32 to 54 cents of cash profit before stock compensation; in the fiscal 2024 downturn each lost dollar took away about 60 cents. Two cash items are also built in. At January 31, 2026 Ambarella owed $24.2 million for licenses already bought, and $14.0 million of technology-license payments fall due within a year, more than double what it paid in fiscal 2026; every case adds $8 million of extra spending in fiscal 2027 and $4 million in each of fiscal 2028 and 2029 to catch up. All cases are discounted at 6% and use today's roughly 44.0 million diluted shares. The $312.6 million of cash and securities, about $7.10 per share, is not added on top of these values because the interest it earns is already part of the earnings stream. Base case, $0.16 per share. In fiscal 2026 owner earnings improved by about $43 million, from -$112.9 million to -$69.6 million. The base case assumes a smaller improvement of about $20 million in fiscal 2027, to roughly -$49 million, on revenue growth of 13%, below last year's 37% and in line with the first half. Growth then runs 12% and 8% before revenue drops 10% in one cyclical downturn around fiscal 2030; revenue fell 23% in fiscal 2019 and 33% in fiscal 2024, so a downturn within a decade comes from the company's own record. Revenue then recovers and settles at 4% growth, reaching about $680 million by fiscal 2036, with 40 cents of each new dollar becoming cash profit. Stock compensation holds near $90 million, the first-half pace, and then rises 2% a year. Owner earnings turn positive only in fiscal 2033 and reach about $26 million by fiscal 2036. We carry that level ten more years, based on the company's record of renewing its chip line across several product generations, and then stop. The losses of the next six years almost exactly cancel the gains that follow, which is why the base value is close to zero. Bear case, -$12.54 per share. Revenue grows 10% this year and then falls 25% in fiscal 2028, in line with the fiscal 2019 and 2024 corrections, a risk sharpened by having 70% of sales through one distributor and by the competitors above; recovery is 8% a year. The move to 2-nanometer and smaller processes, which the company says costs significantly more to develop, adds $6 million a year of design-software spending for three years, about the net growth in its licensed-software base in fiscal 2026 ($28.1 million bought against $22.0 million expired). Owner earnings stay negative for the whole decade and are still about -$18 million in fiscal 2036; we count nothing beyond that point. What a negative value means here. It does not mean the company owes more than it is worth: Ambarella has no borrowings. It also does not mean the company runs out of money. In this case it burns only about $50 million of cash in fiscal 2028 and 2029 combined, which its $312.6 million of cash and securities easily covers, and over the decade it generates about $275 million of cash before stock compensation. The problem is that over the same decade it would hand employees roughly $985 million of new stock. Each share issued to employees shrinks existing owners' slice of the business, so in this case owners would see about $12.54 per share, in today's money, more value transferred away from them through dilution than the business creates for them. The negative figure measures how far the business would fall short of paying for its own workforce, not a bill that shareholders would receive. Bull case, $45.79 per share. The AI-inference ramp continues close to its recent pace, with growth of 16%, 20%, 18%, 15% and 12% over the next five years and 6-8% after that, taking revenue to about $1.15 billion by fiscal 2036. Forty-five cents of each new revenue dollar becomes cash profit before stock compensation, the upper part of the company's own record, and stock compensation stays near $90 million, consistent with its decline over fiscal 2025, fiscal 2026 and the first half of fiscal 2027. Owner earnings turn positive in fiscal 2028 and reach about $279 million by fiscal 2036. That implies cash profit before stock compensation of about 32% of revenue, a little below the 35% of fiscal 2017. That level is carried ten more years. What changed. Our earlier estimate showed the bear case as zero on the view that, with no debt, shareholders cannot owe anything. We now show it at its calculated value, because a negative figure tells a reader something real: in a bad but plausible decade, stock compensation alone would destroy value for today's owners. We also now use the current share count and the license-payment schedule in the annual report, which moves the base case from $0.67 to $0.16 and the bull case from $42.64 to $45.79. What the shares appear to be worth. The value depends almost entirely on one question: can revenue grow fast enough, for long enough, to outrun roughly $90-100 million a year of stock compensation? In the base case that takes most of a decade and leaves almost nothing for today's owners; in the bear case it never happens and owners are diluted; in the bull case the AI-inference growth of the past two years continues and the payoff is large. Because the range runs from well below zero to about $46, the margin-of-safety price applies only after Ambarella covers its stock compensation with cash for a full fiscal year, so the estimate rests on demonstrated earnings rather than projection. The upside would come from sustained growth of 15% or more with stock compensation falling further. The downside would come from losing the WT relationship, Samsung stumbling in the move to smaller process nodes, or a deeper cyclical drop than the base case assumes. The quarterly filings available to us do not include every cash-flow line, so we did not compute a first-half owner-earnings figure; the lines that are reported point the same way as fiscal 2026.