LONGDUODUO COMPANY LIMITED

LDDD · Healthcare · $15.3M mkt cap · FY2025 filings · Narrow moat ·

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The five investor questions

70

2021–2025 (latest 5 aligned FYs; v3 window cap 5): revenue $413861 to $4.3M, increasing; diluted EPS -0.00 to 0.01, increasing.

91

Median gross margin 84.5% over 5y, stable.

Not enough years of ROIC data to score returns on capital.

100

Net cash position — no leverage risk.

44

Owner earnings changed trend unclear over up to the ten most recent annual observations, share count n/a.

The returnsOnCapital component abstained: Not enough years of ROIC data to score returns on capital. The other four 20% weights were renormalized over the scored 80%.

Price vs. value if growth stopped today

A cautious baseline, not a price target: what the shares may support if normalized owner earnings simply hold steady.

Above value if growth stopped todayBelow value if growth stopped today
No price data
Not reported
Unavailable — insufficient owner-earnings data
Unavailable — insufficient growth-model data
$0.51
No price data

This zero-growth estimate assumes trailing owner earnings persist — unreliable for declining businesses. The recent FY revenue series does not trigger the three-consecutive-declines flag.

Among the current top-score group, the median current price is 239% above the zero-growth estimate across 48 of the current top 50 companies by Moat Score with both values.

Score records captured Jul 26, 2026.

Exactly which 50 companies?

FTNT, META, MEDP, IBEX, MSFT, GOOGL, LULU, ANF, IDXX, TXRH, FHI, QLYS, FFIV, ADBE, LLY, MANH, VEEV, GRMN, SSD, MNST, DOCS, MCO, CPRT, NTAP, LRCX, NVDA, CORT, SFM, MPTI, ULTA, SN, RMD, ROL, PAYC, IRMD, INTU, DECK, MORN, LGCY, DAL, GWW, ISRG, MPWR, CTAS, LOPE, MRK, CMG, FAST, BKNG, ORLY

Missing a usable price or zero-growth estimate: ANF, BKNG.

Model details under moat-index@3.0.0: zero-growth multiple 11.1×, capped-growth comparison at no more than 18×; 9% discount rate; high-end growth 0% (capped at 4%) using min(5y revenue CAGR, 5y diluted-EPS CAGR), clamped to 0%–4%; maintenance capex uses min(capex, D&A); abstain when D&A is unavailable. This is a disclosed model range, not intrinsic value as fact.

6 years of fundamentals

The business, in plain English

LONGDUODUO COMPANY LIMITED booked $4.3M of revenue in FY2025 in the Healthcare sector and kept 97.9% of it as gross profit — a high-margin business by that measure. After every other cost, 10.8% of each revenue dollar reached the bottom line.

LDDD's latest filed year, FY2025, doesn't disclose total debt in a form the methodology can use, so current leverage is treated as unmeasured — never assumed to be zero.

This breakdown is generated from the filed numbers and sub-scores above — no outside narrative, no estimates. Where a filing doesn’t disclose an input, the sentence that would need it is omitted instead of guessed.

FY2020–FY2025 · 6 fiscal years, normalized from LDDD’s SEC filings

Sales, as filed$4.3M FY2025
$0$5M2020202220242025
Revenue kept after cost of goods97.9% FY2025
0%50%100%2020202220242025
Standard ROIC or separately labeled Operating ROIC

Not meaningful FY2022: invested capital is negative (cash exceeds debt + equity)

Not meaningful FY2022: invested capital is negative (cash exceeds debt + equity)

Cash an owner could take out$538350 FY2025
−$5M$02020202220242025

The explained ROIC gaps have filed inputs but no meaningful positive invested-capital denominator. Other gaps mean the item is not in the filings for that year. The series is never interpolated or estimated. The Table view lists every filed value, including operating and net margins, total debt, and share count.

Flagship explainer

How LONGDUODUO COMPANY LIMITED makes its money

Start with a dollar of revenue and follow what the filing says remains.

revenueBranching filed flows with values and percentages directly labeled. Missing filing concepts are omitted rather than estimated.Revenue$4.3M · 100%Cost of revenue$91099 · 2%Gross profit$4.2M · 98%Operating income$552679 · 13%Income before tax$714528 · 17%Income tax$222268 · 5%Net income$460435 · 11%As of 2025-06-30 · 1 SEC filing sourceBuy Like Buffett · buylikebuffett.com

Honest partial: the filing did not provide a normalized tag for Research and development, Selling, general and administrative; those components are omitted, not plugged.

Table alternative
Filed lineValue% of revenueSource
$4.3M100%
Cost of revenue$910992%
$4.2M98%
$55267913%
Income before tax$71452817%
Income tax$2222685%
$46043511%
Source: · event Jun 30, 2025 · retrieved Jul 26, 2026 · annual-row source set
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Flagship explainer

What LONGDUODUO COMPANY LIMITED owns — and owes

LONGDUODUO COMPANY LIMITED's filing tags don't support a full breakdown — here's what is filed:

Table alternative
Filed lineValue% of assetsSource
Total assets$2.1M100%
Cash and equivalents$1.6M77%
Stockholders’ equity$1.2M56%
Source: · event Jun 30, 2025 · retrieved Jul 26, 2026 · annual-row source set

Flagship explainer

What drives LONGDUODUO COMPANY LIMITED’s return on equity?

ROE is five filed business factors multiplied together.

DuPont return on equity factor treeReturn on equity branches into tax burden, interest burden, operating margin, asset turnover, and the equity multiplier.Return on equity49%Tax burden64%net income ÷ pretax incomeInterest burden129%pretax ÷ operating incomeOperating margin13%operating income ÷ revenueAsset turnover2.03×revenue ÷ average assetsEquity multiplier2.22×average assets ÷ average equityAs of 2025-06-30 · 2 SEC filing sourcesBuy Like Buffett · buylikebuffett.com
DuPont source inputs
InputValueFiscal yearSource
$460435FY2025
Income before tax$714528FY2025
Operating income$552679FY2025
$4.3MFY2025
Ending assets$2.1MFY2025
Beginning assets$2.1MFY2024
$1.2MFY2025
$702515FY2024
Source: · event Jun 30, 2025 · retrieved Jul 26, 2026 · annual-row source set
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Flagship explainer

Where LONGDUODUO COMPANY LIMITED's cash went

LONGDUODUO COMPANY LIMITED’s filing does not supply enough provenance-matched cash-flow lines for a truthful flow chart — here’s what is filed:

Table alternative
Filed lineValue% of cash from operationsSource
Cash from operations$277365100%
Depreciation and amortization$13729049%
Source: · event Jun 30, 2025 · retrieved Jul 26, 2026 · annual-row source set

Curated 19-manager tier

Who reported holding LONGDUODUO COMPANY LIMITED

Delayed public 13F reports for 2026-Q2—not live positions, trades, or recommendations.

0 holding0 exited0 not holding0/19 resolved19 unavailable

Named manager positions and quarter-over-quarter changes
ManagerReported positionQuarter-over-quarterFiling accession
Abrams CapitalUnavailableComparison unavailableFiling unavailable
Akre CapitalUnavailableComparison unavailableFiling unavailable
Baupost GroupUnavailableComparison unavailableFiling unavailable
Berkshire HathawayUnavailableComparison unavailableFiling unavailable
Brave Warrior AdvisorsUnavailableComparison unavailableFiling unavailable
Dodge & CoxUnavailableComparison unavailableFiling unavailable
First EagleUnavailableComparison unavailableFiling unavailable
FundsmithUnavailableComparison unavailableFiling unavailable
Gardner Russo & QuinnUnavailableComparison unavailableFiling unavailable
Gates Foundation TrustUnavailableComparison unavailableFiling unavailable
Mairs & PowerUnavailableComparison unavailableFiling unavailable
Markel / Markel-GaynerUnavailableComparison unavailableFiling unavailable
Oakmark / Harris AssociatesUnavailableComparison unavailableFiling unavailable
Pershing SquareUnavailableComparison unavailableFiling unavailable
Polen CapitalUnavailableComparison unavailableFiling unavailable
Sequoia / Ruane CunniffUnavailableComparison unavailableFiling unavailable
Southeastern Asset ManagementUnavailableComparison unavailableFiling unavailable
Tweedy, BrowneUnavailableComparison unavailableFiling unavailable
Yacktman Asset ManagementUnavailableComparison unavailableFiling unavailable

Position size uses shares and filed value from each manager’s 13F. Portfolio weight uses the eligible long-share filing denominator. Changes compare only with the immediately preceding calendar quarter.

Source: Filing source unavailable · event Jun 30, 2026 · retrieved Jul 26, 2026

Flagship explainer

What LONGDUODUO COMPANY LIMITED insiders reported

The complete Form 4 source snapshot retrieved on Aug 19, 2026 contains no transaction rows.

Verified empty: the retrieved source snapshot contains no transaction event.

Source snapshot retrieved 2026-08-19T07:00:02.788Z · SEC Form 4

Moat Score history

12 logged readings since Jul 18, 2026 · append-only, never rewritten

Moat Score over timeLast scored reading of each day, on the 0–100 scale76.4 / 100
0406080100WideNarrowShallowNo moatJul 20, 2026Jul 26, 2026

Breaks in the line mark methodology or normalizer upgrades — readings across versions aren’t compared, so a level shift there isn’t a change in the business.

Tier changesSame-methodology and same-normalizer crossings of the Wide / Narrow / Shallow bars

  1. Normalizer upgraded unstamped (version unknown)tomoat-xbrl-normalizer@1.1.0 — readings across versions aren’t comparedJul 26, 2026
  2. Methodology upgraded moat-index@2.0.0tomoat-index@3.0.0 — readings across versions aren’t comparedJul 23, 2026
  3. Methodology upgraded moat-index@1.2.0tomoat-index@2.0.0 — readings across versions aren’t comparedJul 20, 2026

Scores are logged append-only and never overwritten — this record cannot be reconstructed retroactively, which is exactly why it’s worth keeping.

Insider activity

Form 4 reports mix P/S market or private transactions with compensation-plan mechanics. Activity casually described as “insider selling” can include compensation mechanics; awards, tax withholding, and option exercises are shown by their exact filed class here, never collapsed into “Bought” or “Sold.”

These are disclosed filing facts and arithmetic aggregates, not a signal or verdict.

This machine-readable surface covers SEC ownership filings from 2003; it does not represent earlier paper-era records.

No reported Form 4 transactions were found in the complete checked issuer window for LDDD, . The totals and cluster result below are arithmetic over that certified window.

$0
P purchases minus S sales only, Aug 20, 2025Aug 20, 2026.
0 P / 0 S
Only P and S are included; awards, gifts, exercises, withholding, and other mechanics are excluded.
No
Requires at least 3 distinct insiders with P purchases.

Transaction-code histogram

Supporting event counts for the same certified window, Aug 20, 2025Aug 20, 2026.

P
0
S
0
A
0
F
0
M
0
G
0
C
0
J
0
W
0

Retrieved .

Track record

How LONGDUODUO COMPANY LIMITED’s moat rated in each of the years we can reconstruct from its filings — scored only on what was knowable at the time — and what its price and returns did afterward. The score never saw a price; the two are joined only in hindsight, for education, not as a signal.

Point-in-time scores 20222025, one methodology version · reconstructed from filings on file each Dec 31 — never with hindsight

Point-in-time Moat Score (dot colored by tier)Indexed price (total-return (dividends reinvested))Rated Wide-moat that year

How to read this: each dot is what the engine would have scored LDDD on that December 31; the line below is its total-return price path (dividends reinvested) in the years since.

0406080100WideNarrowShallowNo moatPoint-in-time Moat Score102050100Indexed price · log scale (2024 = 100)20222023202420252026

Two tracks, one timeline: the score has its own 0–100 scale (top), the price its own 100-based scale (bottom) — never a shared axis. The price path is a total-return (dividends reinvested) index built from the same data the forward returns use; gaps in the score line are years with no reconstructed rating (see the table for why). The Table view carries every value.

What followed, in the years it rated Wide

In the reconstructed history shown, LDDD did not rate Wide-moat in any year, so there is no wide-moat track record to report. That absence is itself the honest answer — we don’t manufacture a comparison where the rating never earned one.

Healthcare context

#36 of 710 scored Healthcare companies, ranked by Moat Score.

Nearest peers by Moat Score

  1. #34VLTO VERALTO CORPORATION77.3 out of 100, Narrow moatNarrow moat
  2. #35UTMD UTAH MEDICAL PRODUCTS INC77.0 out of 100, Narrow moatNarrow moat
  3. #37TER TERADYNE, INC.76.1 out of 100, Narrow moatNarrow moat
  4. #38EW EDWARDS LIFESCIENCES CORPORATION75.6 out of 100, Narrow moatNarrow moat

Compare LDDD with its nearest peersAll Healthcare companies on the Index →

Common questions about LDDD

Does LONGDUODUO COMPANY LIMITED have an economic moat?
Based on its FY2025 SEC filings, the Moat Index scores LONGDUODUO COMPANY LIMITED (LDDD) 76.4 out of 100 — a Narrow moat. The five questions behind that score begin at 20% each; if exactly one genuinely lacks data, the other four weights are renormalized and disclosed. revenue and EPS trend 70, pricing power 91, returns on capital not measurable from the filings, balance-sheet safety 100, capital allocation 44.
How has LDDD's Moat Score changed over time?
The record logs 12 readings since Jul 18, 2026; the latest reads 76.4 out of 100 (narrow moat). No tier changes on record yet. (Methodology or normalizer upgrades on Jul 20, 2026, Jul 23, 2026, Jul 26, 2026 re-based the score; readings across versions aren't compared.) The history is append-only — readings are only ever added, never rewritten.