Research notes · September 4, 2026

Seven publishers, seven pieces: Damnang's optical re-rating map, Capital Wars on Treasury QE, Samsara's beat-and-raise, and a Marvell plasmonics tripwire list

On 2026-09-04 seven research publishers published seven pieces tracked here. Two were single-name deep dives on optical/photonics names (Damnang on Coherent and the broader CPO basket, PhotonCap on Marvell's overlapping acquisitions), one was a macro rates and liquidity note (Capital Wars), one was an earnings-season SaaS wrap covering Samsara and Zscaler (TMT Breakout), one was a contrarian retail trade writeup (Cassandra Unchained on Lululemon), one was a weekly portfolio and macro recap (AlphaPick), and one was a personal options trading diary (James Bulltard). Every statement below is attributed to the publisher or source that made it, with the publisher's own numbers. Quant Data did not verify these numbers and takes no view on them.

What was published

"Points extracted" counts the discrete claims (numbers, theses, risks, catalysts, falsification points) pulled from each piece during ingestion. It measures how much a piece asserts, not how good it is.

What each piece said

Directional statements on the record

Each row is a dated fact: a named source expressed a direction on a named ticker. Where a publisher was relaying a broker's rating change, the originating voice is in the "via" column. None of this is a recommendation from Quant Data.

Numbers the publishers put on the record

• Damnang · COHR: 13 optical stocks average down 42% from 52-week highs (SPY -0.8%, NVDA -3.4%), while all 11 names reporting August earnings grew revenue over 20% year over year.
• Damnang · COHR: Coherent FY26 capex of $1.1B versus operating cash flow of just $79.5M, implying roughly -$1.02B free cash flow.
• Damnang: Mispriced-bucket threshold: 2027E P/E at or below 26x plus a substance score of at least 4.0, or 33% of the 12-point scale.
• Capital Wars: 10-year Treasury yield could test 6%; 10-year JGB 'should' be testing 4% versus the current 3%, per Capital Wars.
• Capital Wars: The 2-year Treasury/SOFR spread has been an accurate leading indicator of Fed policy stance about 85% of the time, and T-bills are approaching 30% of outstanding Treasury issuance, per Capital Wars.
• TMT Breakout · IOT: Samsara F2Q27 revenue $508.4M, +29.9% y/y, above Street's $483.3M; net-new ARR $134.1M, +28% constant currency, about 28% above Street.
• TMT Breakout · ZS: Zscaler's FY27 guide implies 63% of net-new ARR in the back half of the year; billings grew only 12% y/y versus Street's roughly 18% estimate.
• TMT Breakout: Bernstein forecasts Q3 2026 DRAM contract prices up 19% quarter over quarter and NAND up about 20%.
• PhotonCap · MRVL: Marvell paid about $3.25B upfront plus up to $2.25B in earnout for Celestial AI; Marvell's FY2027 Q2 revenue was $2.739B, annualizing below the $33.2B Fortune Global 500 threshold.
• PhotonCap: Lightwave Logic quarterly revenue of just $32,751, versus $25,605 a year earlier, per its 10-Q.
• Cassandra Unchained · LULU: Global comparable sales -9%, leggings category -20%, operating margin guidance cut to mid-single digits.
• Cassandra Unchained · LULU: $1.3B cash, no financial debt, and a prior buyback executed at $142/share versus the current $99 share price.
• AlphaPick: US 10-year Treasury yield briefly topped 4.75% for the first time since January 2025; Brent crude hit $94.65/bbl.
• AlphaPick · AVGO: Q3 revenue $29.59B; AI-chip sales more than tripled to $16.7B; FY2027 AI-chip revenue forecast raised to about $115B.

Reproduced as stated by each publisher. Not verified by Quant Data.

What would prove them wrong

Several publishers name the observation that would falsify their own view. Those are the most useful sentences in any research note, so they are collected here.

• Damnang · COHR: Whether Coherent's operating-cash-flow-to-capex ratio improves each quarter, tracked against the current $1.1B capex versus $79.5M operating cash flow.
• Damnang · FN: Two consecutive quarters of declining datacom volume would be a kill signal for Fabrinet; NPO/CPO assembly orders converting into real revenue would be the upgrade signal.
• Damnang: 448G electrical reach exceeding expectations, two consecutive quarters of hyperscaler capex cuts, or a weakening of Lumentum's CPO laser position would break the overall optical thesis.
• Capital Wars: The 10-year Treasury actually testing 6%, or the 10-year JGB actually testing 4%, would confirm Capital Wars' core yield forecasts; accelerating M2 growth is flagged as the danger sign for inflation.
• Capital Wars: If the Fed's excess-reserve/SOFR-spread relationship decouples (reserves stay ample but SOFR spreads still spike), Capital Wars treats that as a warning that liquidity support is failing.
• TMT Breakout · IOT: Whether Samsara's Q3 revenue growth holds near the guided 24% rather than falling further, testing the linearity-normalization assumption.
• TMT Breakout · ZS: Whether Zscaler's Security for AI shows real ARR contribution after the October 6 Analyst Day; without it, the 63% back-half-weighted guide is at risk.
• PhotonCap · MRVL: Whether Marvell's September 21 ECOC talk narrows plasmonics to a single system layer, whether the We3-D2 paper names a material supplier, and whether device-level reliability data is published with a named supplier.
• Cassandra Unchained · LULU: Comparable sales turning positive and the leggings decline narrowing next quarter would support the 'kitchen sink' read; further margin cuts or continued double-digit comp declines would falsify it.
• James Bulltard · SPY: A break of the 21-week moving average would falsify the author's 'textbook uptrend' call.
• James Bulltard · VST: A break below $135 — also the level of the cited insider purchase — would falsify the double-bottom support read.
• James Bulltard · NVDA: Failure to hold above the $270 strike, where the short call was rolled, would require reassessing the breakout thesis.

Where Quant Data's own data touches the same tickers

For tickers named above that have a stock page on this site, the settled options positioning from the same period. These are Quant Data's computations from end-of-day open interest, dated to the settlement shown, and are unrelated to what any publisher said.

Common questions

Sources: paid research publishers accessed through the GeoScope aggregator under a licence that permits redistribution. Statements and figures are attributed to their publishers and reproduced as stated; Quant Data has not verified them and expresses no view on them. Educational only: not investment advice, not a recommendation, not a forecast.