{ "generatedAt": "2026-10-22T15:15:11Z", "url": "https://deepstack.ltd/theses/arista-margin-whitebox-erosion/", "disclaimer": "Analysis and opinion, not investment advice.", "id": "arista-margin-whitebox-erosion", "number": 71, "question": "Will Arista Networks' GAAP gross margin fall below 60% in any quarter reported before 2027-12-31?", "dek": "CPO deletes the board-level signal-integrity engineering that justified branded switch premiums, pushing hyperscalers to whitebox/ODM sourcing and compressing incumbent network vendor margins.", "family": "T03", "subthesis": "T03.04", "sector": "AI.NET", "subsectors": [ "AI.NET.CPO", "AI.NET.SWITCH", "AI.NET.DSP", "AI.SEMI.GPU" ], "relatedParts": [], "approvedAt": "2026-10-22T05:42:55Z", "sectorName": "Networking, Interconnect & Optics", "api": "https://deepstack.ltd/api/v1/theses/arista-margin-whitebox-erosion.json", "sides": [ { "id": "yes", "label": "Co-packaged optics reshapes the supply chain and compresses Arista's margin", "summary": "Moving optics on-package removes the hardest motherboard routing problem, lowering the engineering barrier to entry for contract manufacturers. Hyperscaler sourcing shifts to ODM whiteboxes and branded network vendor gross margins compress, pushing Arista's GAAP gross margin below 60% in a reported quarter before 2027-12-31.", "voices": [ { "name": "Daniel Romero", "entity": "https://deepstack.ltd/people/daniel-romero/", "claim": "Network vendors like Arista commanded premium prices through elite engineering required to route ultra-fast electrical signals across motherboards without signal degradation. CPO deletes this engineering problem by moving optics on-package. When…", "date": "2026-02-26", "url": "https://hypertechinvest.com/p/photonics-stocks" } ] }, { "id": "no", "label": "Arista's gross margin holds at or above 60% through 2027", "summary": "Electrical channels become lossy and hard to equalize at 224G-class SerDes speeds and spike power consumption, so co-packaged optics and advanced copper redrivers become required additions rather than substitutes, opening new engineering-differentiated TAM instead of commoditizing it. Shortened electrical paths and improved signal integrity from on-package optics still demand the kind of system-level integration that preserves premium positioning. On this side, Arista's GAAP gross margin stays at or above 60% every quarter through 2027.", "voices": [ { "name": "Gaetano", "entity": "https://deepstack.ltd/people/gaetano/", "claim": "Moving from 112G to 224G electrical SerDes creates severe power and thermal constraints. Vesta 200 co-packages optics directly with switch ASIC, shortening electrical path and improving signal integrity. Nitro Redriver boosts electrical signal to…", "date": "2026-03-24", "url": "https://gaetanoresearch.substack.com/p/ciena-deep-dive" }, { "name": "Dylan Patel", "entity": "https://deepstack.ltd/people/dylan-patel/", "claim": "Nvidia controls the accelerator design and has built NVSwitch for inter-node communication. By investing in Ayar Labs and partnering with foundries on co-packaged optics, Nvidia ensures it can integrate optical interconnects into its…", "date": "2022-09-15", "url": "https://newsletter.semianalysis.com/p/meta-discusses-ai-hardware-and-co" } ] } ], "tests": [ { "id": "th071-t01", "part": null, "thesis": 71, "slug": "arista-margin-whitebox-erosion", "when": "November 3, 2026", "whenLabel": "Nov 3, 2026", "date": "2026-11-03", "precision": "day", "event": "Arista Networks, operating cash flow as a share of revenue, quarter ended September 30, 2026: whether it comes in at or above 30%.", "status": "pending", "resultId": null, "sameAs": null, "stage": "open", "callExpects": null, "callExpectsBy": null, "callExpectsAt": null, "callProbability": null, "callProbabilityAt": null, "callProbabilityHistory": [], "source": { "kind": "thesis", "ref": "tests[0].date", "url": null }, "resolver": { "kind": "manual", "rule": "", "question": "", "source": null, "ambiguity": "", "specState": "pending" }, "url": "https://deepstack.ltd/docket/#test-th071-t01", "storyUrl": "https://deepstack.ltd/theses/arista-margin-whitebox-erosion/#tests", "resultUrl": null, "machines": [ { "model": "claude-opus-5", "p": 72, "at": "2026-10-22T06:36:38Z" }, { "model": "deepseek-reasoner", "p": 85, "at": "2026-10-22T06:36:51Z" } ], "readers": null }, { "id": "th071-t02", "part": null, "thesis": 71, "slug": "arista-margin-whitebox-erosion", "when": "December 2, 2026", "whenLabel": "Dec 2, 2026", "date": "2026-12-02", "precision": "day", "event": "Credo, operating cash flow as a share of revenue, quarter ended October 31, 2026: whether it comes in at or above 15%.", "status": "pending", "resultId": null, "sameAs": null, "stage": "pre", "callExpects": "yes", "callExpectsBy": "Desk Editor (level B)", "callExpectsAt": "2026-10-22T08:14:29Z", "callProbability": 73, "callProbabilityAt": "2026-10-22T08:14:29Z", "callProbabilityHistory": [], "source": { "kind": "thesis", "ref": "tests[1].date", "url": null }, "resolver": { "kind": "manual", "rule": "Divide the net cash from operating activities by the revenue that Credo reports for the quarter ended October 31, 2026 in its 10-Q or 10-K filing on SEC EDGAR. The answer is yes if the ratio is at or above 15.0%; no if it is below 15.0%.", "question": "Did the net cash from operating activities of Credo for the quarter ended October 31, 2026 come to at or above 15.0% of its revenue?", "source": { "label": "SEC EDGAR, XBRL company facts of Credo (Forms 10-Q and 10-K)", "url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001807794.json" }, "ambiguity": "If Credo has not filed by December 17, 2026, or a filing restates a period the rule reads, the test is inconclusive, and the Result says what was read and what was missing.", "specState": "approved", "specVersion": 1, "specUpdatedOn": "2026-10-22", "specHistory": [ { "version": 1, "date": "2026-10-22", "reason": "First specification.", "by": "Desk Editor (level B)" } ], "callExpects": "yes", "format": "ladder", "group": "th071-crdo-ocf-margin", "threshold": 15, "direction": "above", "unit": "%", "think": { "baseRate": "Credo's operating cash flow as a share of revenue was 18.8% for the quarter ended August 1, 2026, by its filing on SEC EDGAR.", "outsideView": "A year earlier, for the quarter ended August 2, 2025, the same line read 24.3%, so the rungs sit on the last print.", "wouldChange": "A change in product mix, a one-time charge, or a reclassified line would move the reading." } }, "url": "https://deepstack.ltd/docket/#test-th071-t02", "storyUrl": "https://deepstack.ltd/theses/arista-margin-whitebox-erosion/#tests", "resultUrl": null, "machines": [ { "model": "claude-opus-5", "p": 85, "at": "2026-10-22T06:36:55Z" }, { "model": "deepseek-reasoner", "p": 85, "at": "2026-10-22T06:37:06Z" } ], "readers": null }, { "id": "th071-t03", "part": null, "thesis": 71, "slug": "arista-margin-whitebox-erosion", "when": "December 2, 2026", "whenLabel": "Dec 2, 2026", "date": "2026-12-02", "precision": "day", "event": "Credo, operating cash flow as a share of revenue, quarter ended October 31, 2026: whether it comes in at or above 20%.", "status": "pending", "resultId": null, "sameAs": null, "stage": "pre", "callExpects": "either", "callExpectsBy": "Desk Editor (level B)", "callExpectsAt": "2026-10-22T08:14:29Z", "callProbability": 47, "callProbabilityAt": "2026-10-22T08:14:29Z", "callProbabilityHistory": [], "source": { "kind": "thesis", "ref": "tests[2].date", "url": null }, "resolver": { "kind": "manual", "rule": "Divide the net cash from operating activities by the revenue that Credo reports for the quarter ended October 31, 2026 in its 10-Q or 10-K filing on SEC EDGAR. The answer is yes if the ratio is at or above 20.0%; no if it is below 20.0%.", "question": "Did the net cash from operating activities of Credo for the quarter ended October 31, 2026 come to at or above 20.0% of its revenue?", "source": { "label": "SEC EDGAR, XBRL company facts of Credo (Forms 10-Q and 10-K)", "url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001807794.json" }, "ambiguity": "If Credo has not filed by December 17, 2026, or a filing restates a period the rule reads, the test is inconclusive, and the Result says what was read and what was missing.", "specState": "approved", "specVersion": 1, "specUpdatedOn": "2026-10-22", "specHistory": [ { "version": 1, "date": "2026-10-22", "reason": "First specification.", "by": "Desk Editor (level B)" } ], "callExpects": "either", "format": "ladder", "group": "th071-crdo-ocf-margin", "threshold": 20, "direction": "above", "unit": "%", "think": { "baseRate": "Credo's operating cash flow as a share of revenue was 18.8% for the quarter ended August 1, 2026, by its filing on SEC EDGAR.", "outsideView": "A year earlier, for the quarter ended August 2, 2025, the same line read 24.3%, so the rungs sit on the last print.", "wouldChange": "A change in product mix, a one-time charge, or a reclassified line would move the reading." } }, "url": "https://deepstack.ltd/docket/#test-th071-t03", "storyUrl": "https://deepstack.ltd/theses/arista-margin-whitebox-erosion/#tests", "resultUrl": null, "machines": [ { "model": "claude-opus-5", "p": 80, "at": "2026-10-22T06:37:11Z" }, { "model": "deepseek-reasoner", "p": 80, "at": "2026-10-22T06:37:27Z" } ], "readers": null }, { "id": "th071-t04", "part": null, "thesis": 71, "slug": "arista-margin-whitebox-erosion", "when": "December 2, 2026", "whenLabel": "Dec 2, 2026", "date": "2026-12-02", "precision": "day", "event": "Credo, operating cash flow as a share of revenue, quarter ended October 31, 2026: whether it comes in at or above 25%.", "status": "pending", "resultId": null, "sameAs": null, "stage": "pre", "callExpects": "no", "callExpectsBy": "Desk Editor (level B)", "callExpectsAt": "2026-10-22T08:14:29Z", "callProbability": 22, "callProbabilityAt": "2026-10-22T08:14:29Z", "callProbabilityHistory": [], "source": { "kind": "thesis", "ref": "tests[3].date", "url": null }, "resolver": { "kind": "manual", "rule": "Divide the net cash from operating activities by the revenue that Credo reports for the quarter ended October 31, 2026 in its 10-Q or 10-K filing on SEC EDGAR. The answer is yes if the ratio is at or above 25.0%; no if it is below 25.0%.", "question": "Did the net cash from operating activities of Credo for the quarter ended October 31, 2026 come to at or above 25.0% of its revenue?", "source": { "label": "SEC EDGAR, XBRL company facts of Credo (Forms 10-Q and 10-K)", "url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001807794.json" }, "ambiguity": "If Credo has not filed by December 17, 2026, or a filing restates a period the rule reads, the test is inconclusive, and the Result says what was read and what was missing.", "specState": "approved", "specVersion": 1, "specUpdatedOn": "2026-10-22", "specHistory": [ { "version": 1, "date": "2026-10-22", "reason": "First specification.", "by": "Desk Editor (level B)" } ], "callExpects": "no", "format": "ladder", "group": "th071-crdo-ocf-margin", "threshold": 25, "direction": "above", "unit": "%", "think": { "baseRate": "Credo's operating cash flow as a share of revenue was 18.8% for the quarter ended August 1, 2026, by its filing on SEC EDGAR.", "outsideView": "A year earlier, for the quarter ended August 2, 2025, the same line read 24.3%, so the rungs sit on the last print.", "wouldChange": "A change in product mix, a one-time charge, or a reclassified line would move the reading." } }, "url": "https://deepstack.ltd/docket/#test-th071-t04", "storyUrl": "https://deepstack.ltd/theses/arista-margin-whitebox-erosion/#tests", "resultUrl": null, "machines": [ { "model": "claude-opus-5", "p": 72, "at": "2026-10-22T06:37:31Z" }, { "model": "deepseek-reasoner", "p": 22, "at": "2026-10-22T06:37:37Z" } ], "readers": null }, { "id": "th071-t05", "part": null, "thesis": 71, "slug": "arista-margin-whitebox-erosion", "when": "December 10, 2026", "whenLabel": "Dec 10, 2026", "date": "2026-12-10", "precision": "day", "event": "Ciena, operating cash flow as a share of revenue, quarter ended October 31, 2026: whether it comes in at or above 9%.", "status": "pending", "resultId": null, "sameAs": null, "stage": "pre", "callExpects": "yes", "callExpectsBy": "Desk Editor (level A)", "callExpectsAt": "2026-10-22T08:14:29Z", "callProbability": 71, "callProbabilityAt": "2026-10-22T08:14:29Z", "callProbabilityHistory": [], "source": { "kind": "thesis", "ref": "tests[4].date", "url": null }, "resolver": { "kind": "manual", "rule": "Divide the net cash from operating activities by the revenue that Ciena reports for the quarter ended October 31, 2026 in its 10-Q or 10-K filing on SEC EDGAR. The answer is yes if the ratio is at or above 9.0%; no if it is below 9.0%.", "question": "Did the net cash from operating activities of Ciena for the quarter ended October 31, 2026 come to at or above 9.0% of its revenue?", "source": { "label": "SEC EDGAR, XBRL company facts of Ciena (Forms 10-Q and 10-K)", "url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000936395.json" }, "ambiguity": "If Ciena has not filed by December 17, 2026, or a filing restates a period the rule reads, the test is inconclusive, and the Result says what was read and what was missing.", "specState": "approved", "specVersion": 1, "specUpdatedOn": "2026-10-22", "specHistory": [ { "version": 1, "date": "2026-10-22", "reason": "First specification.", "by": "Desk Editor (level A)" } ], "callExpects": "yes", "format": "ladder", "group": "th071-cien-ocf-margin", "threshold": 9, "direction": "above", "unit": "%", "think": { "baseRate": "Ciena's operating cash flow as a share of revenue was 11.7% for the quarter ended August 1, 2026, by its filing on SEC EDGAR.", "outsideView": "A year earlier, for the quarter ended August 2, 2025, the same line read 14.3%, so the rungs sit on the last print.", "wouldChange": "A change in product mix, a one-time charge, or a reclassified line would move the reading." } }, "url": "https://deepstack.ltd/docket/#test-th071-t05", "storyUrl": "https://deepstack.ltd/theses/arista-margin-whitebox-erosion/#tests", "resultUrl": null, "machines": [ { "model": "claude-opus-5", "p": 72, "at": "2026-10-22T06:37:41Z" }, { "model": "deepseek-reasoner", "p": 78, "at": "2026-10-22T06:37:55Z" } ], "readers": null }, { "id": "th071-t06", "part": null, "thesis": 71, "slug": "arista-margin-whitebox-erosion", "when": "December 10, 2026", "whenLabel": "Dec 10, 2026", "date": "2026-12-10", "precision": "day", "event": "Ciena, operating cash flow as a share of revenue, quarter ended October 31, 2026: whether it comes in at or above 12%.", "status": "pending", "resultId": null, "sameAs": null, "stage": "pre", "callExpects": "either", "callExpectsBy": "Desk Editor (level A)", "callExpectsAt": "2026-10-22T08:14:29Z", "callProbability": 48, "callProbabilityAt": "2026-10-22T08:14:29Z", "callProbabilityHistory": [], "source": { "kind": "thesis", "ref": "tests[5].date", "url": null }, "resolver": { "kind": "manual", "rule": "Divide the net cash from operating activities by the revenue that Ciena reports for the quarter ended October 31, 2026 in its 10-Q or 10-K filing on SEC EDGAR. The answer is yes if the ratio is at or above 12.0%; no if it is below 12.0%.", "question": "Did the net cash from operating activities of Ciena for the quarter ended October 31, 2026 come to at or above 12.0% of its revenue?", "source": { "label": "SEC EDGAR, XBRL company facts of Ciena (Forms 10-Q and 10-K)", "url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000936395.json" }, "ambiguity": "If Ciena has not filed by December 17, 2026, or a filing restates a period the rule reads, the test is inconclusive, and the Result says what was read and what was missing.", "specState": "approved", "specVersion": 1, "specUpdatedOn": "2026-10-22", "specHistory": [ { "version": 1, "date": "2026-10-22", "reason": "First specification.", "by": "Desk Editor (level A)" } ], "callExpects": "either", "format": "ladder", "group": "th071-cien-ocf-margin", "threshold": 12, "direction": "above", "unit": "%", "think": { "baseRate": "Ciena's operating cash flow as a share of revenue was 11.7% for the quarter ended August 1, 2026, by its filing on SEC EDGAR.", "outsideView": "A year earlier, for the quarter ended August 2, 2025, the same line read 14.3%, so the rungs sit on the last print.", "wouldChange": "A change in product mix, a one-time charge, or a reclassified line would move the reading." } }, "url": "https://deepstack.ltd/docket/#test-th071-t06", "storyUrl": "https://deepstack.ltd/theses/arista-margin-whitebox-erosion/#tests", "resultUrl": null, "machines": [ { "model": "claude-opus-5", "p": 63, "at": "2026-10-22T06:37:59Z" }, { "model": "deepseek-reasoner", "p": 65, "at": "2026-10-22T06:38:09Z" } ], "readers": null }, { "id": "th071-t07", "part": null, "thesis": 71, "slug": "arista-margin-whitebox-erosion", "when": "December 10, 2026", "whenLabel": "Dec 10, 2026", "date": "2026-12-10", "precision": "day", "event": "Ciena, operating cash flow as a share of revenue, quarter ended October 31, 2026: whether it comes in at or above 15%.", "status": "pending", "resultId": null, "sameAs": null, "stage": "pre", "callExpects": "no", "callExpectsBy": "Desk Editor (level A)", "callExpectsAt": "2026-10-22T08:14:29Z", "callProbability": 22, "callProbabilityAt": "2026-10-22T08:14:29Z", "callProbabilityHistory": [], "source": { "kind": "thesis", "ref": "tests[6].date", "url": null }, "resolver": { "kind": "manual", "rule": "Divide the net cash from operating activities by the revenue that Ciena reports for the quarter ended October 31, 2026 in its 10-Q or 10-K filing on SEC EDGAR. The answer is yes if the ratio is at or above 15.0%; no if it is below 15.0%.", "question": "Did the net cash from operating activities of Ciena for the quarter ended October 31, 2026 come to at or above 15.0% of its revenue?", "source": { "label": "SEC EDGAR, XBRL company facts of Ciena (Forms 10-Q and 10-K)", "url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000936395.json" }, "ambiguity": "If Ciena has not filed by December 17, 2026, or a filing restates a period the rule reads, the test is inconclusive, and the Result says what was read and what was missing.", "specState": "approved", "specVersion": 1, "specUpdatedOn": "2026-10-22", "specHistory": [ { "version": 1, "date": "2026-10-22", "reason": "First specification.", "by": "Desk Editor (level A)" } ], "callExpects": "no", "format": "ladder", "group": "th071-cien-ocf-margin", "threshold": 15, "direction": "above", "unit": "%", "think": { "baseRate": "Ciena's operating cash flow as a share of revenue was 11.7% for the quarter ended August 1, 2026, by its filing on SEC EDGAR.", "outsideView": "A year earlier, for the quarter ended August 2, 2025, the same line read 14.3%, so the rungs sit on the last print.", "wouldChange": "A change in product mix, a one-time charge, or a reclassified line would move the reading." } }, "url": "https://deepstack.ltd/docket/#test-th071-t07", "storyUrl": "https://deepstack.ltd/theses/arista-margin-whitebox-erosion/#tests", "resultUrl": null, "machines": [ { "model": "claude-opus-5", "p": 45, "at": "2026-10-22T06:38:14Z" }, { "model": "deepseek-reasoner", "p": 20, "at": "2026-10-22T06:38:22Z" } ], "readers": null } ] }