★ TODAY'S EDITION · MADRID · EST. 2026 ★

Wall Estrit Journal

VOL. I — N.º 0001 — FREE EDITION

Verdugo Opens
Portfolio To Public

Diversified holdings unveiled — markets respond favourably

The analyst

PICTURED · THE ANALYST AT HIS DESK

$SVR · ▲ 8.42% · 10 HOLDINGS · INSIDE: §1 §2 §3 §4

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EST. 2026 · MADRIDCLEAR · 22°C

Wall Estrit Journal

VOL. I — N.º 0001TODAY
$BRAINY248.60 +24.60%·$CASA184.20 +18.40%·$SOCIAL96.40 +12.70%·$FINHUB72.10 +7.80%·$IBERD142.00 +14.20%·$PSCOUT64.00 +0.40%·$TENNIS58.40 +0.20%·$PREMIER18.60 -8.40%·$DEGUDELISTED·$ETERNALDELISTED·$BRAINY248.60 +24.60%·$CASA184.20 +18.40%·$SOCIAL96.40 +12.70%·$FINHUB72.10 +7.80%·$IBERD142.00 +14.20%·$PSCOUT64.00 +0.40%·$TENNIS58.40 +0.20%·$PREMIER18.60 -8.40%·$DEGUDELISTED·$ETERNALDELISTED·

★ FRONT PAGE · TODAY'S EDITION ★

Verdugo opens portfolio to public after years of speculation.

ML engineer goes live with diversified holdings — bullish on study tech, bearish on government efficiency. Markets respond favourably; analyst declines comment but “smiles knowingly.”

BY THE EDITORIAL DESK · MADRID · 26/04/2026

The analyst at his desk
PICTURED: The analyst at his desk. “I trust my own portfolio,” he said, sipping a coffee that was described by witnesses as “his fourth of the morning.”

MADRID — In an unexpected move that has shocked exactly nobody who knows him, 21-year-old machine learning engineer Sergio Verdugo Rubio today opened his project portfolio to public viewing. The site, valued by Verdugo himself at “somewhere between zero and priceless,” was promptly listed on what he calls The Verdugo Index ($SVR).

A bachelor's student in Computer Science and Artificial Intelligence at IE University Madrid, Verdugo's holdings span ten distinct positions across study tech, sports analytics, real estate, and what he describes as “one or two regrettable bets I refuse to delete from the books.”

Headline holdings include Brainy Buddy ($BRAINY), an AI study planner he built from zero to production; Casa del Sol Holidays ($CASA), a live short-term rental platform serving real customers; and SocialMedia AI ($SOCIAL), an unfinished SaaS he describes as “one of my biggest projects, currently aging like a fine wine.”

Not every position is a winner. Two assets — $DEGU (a government corruption tracker that drew real traffic before hosting bills proved unsustainable) and $ETERNAL (a privacy-first memory vault) — are listed as DELISTED. Verdugo refuses to remove them. “The losses are part of the track record,” he said.

Continued on §1 — BUSINESS & MARKETS, page below ↓

SCROLL FOR §1 · BUSINESS & MARKETS

Wall Estrit Journal— continued —
BUSINESS & MARKETS·PAGE 2·§1

§1 · BUSINESS & MARKETS

Mixed Signals Across the Verdugo Book.

Study tech and short-term rentals lead the index higher; government efficiency tracker delisted under cost pressure. Two assets quietly removed from the board.

BY THE MARKETS DESK · MADRID

The analyst reviewing his book
PICTURED:Verdugo reviews the day's closing prints. The tablet, sources confirm, displays his own holdings.

The Verdugo Index ($SVR) closed up 8.42% on the day, propelled by gains in study tech and short-term rentals while two former darlings — $DEGU and $ETERNAL — were quietly removed from the board.

Top Movers

Leading the rally was Brainy Buddy ($BRAINY, +24.6%), an AI-powered study planner now live at brainy-buddy.com. Built from prototype to production, the platform combines a deterministic 15-minute slot scheduler with an LLM tool-calling assistant — a structure analysts have privately described as “rare for a one-engineer shop.”

Verdugo recently shipped an LTI 1.3 multi-tenant extension targeting European universities, making the system fully GDPR and AI-Act compliant; student names, notably, never enter the language model prompt.

Casa del Sol Holidays ($CASA, +18.4%), a Django + Vue short-term rental platform serving real customers at casadelsolholidays.es, contributed steadily. “Boring revenue,” Verdugo is reported to have said, “is the best kind.”

Dev-Phase Watch

Two positions remain under construction. SocialMedia AI ($SOCIAL, +12.7%)— a SaaS for video pattern analysis, automated editing, and multi-platform publishing — is the most ambitious unfinished asset on the book. Verdugo describes it as “one of my biggest projects, currently aging like a fine wine.” FinanceHub ($FINHUB, +7.8%), his personal market-analysis cockpit, is the tool he trades from when he isn't building portfolios for other people.

Academic Bench

Two academic deliverables — ProScout ($PSCOUT), a football scouting model with multi-output XGBoost and SHAP, and Tennis-Match-Length ($TENNIS), a 68,803-match game-prediction model — closed flat. Both shipped clean. Both did their job.

Troubled Assets

Not every position is a winner. PremierBot ($PREMIER, −8.4%)— Verdugo's earlier attempt at predicting Premier League statistics — is kept on the book “for the lessons.” It was the predecessor of ProScout.

$DEGU, a government corruption tracker that drew real traffic, was delisted when hosting bills became unsustainable. $ETERNAL, a privacy-first memory vault with zero-knowledge encryption, was paused for the same reason. Verdugo refuses to delete them. “The losses are part of the track record,” he said.

CONTINUED ON §2 · SPORTS & LIFESTYLE

Wall Estrit Journal— continued —
SPORTS & LIFESTYLE·PAGE 3·§2

§2 · SPORTS & LIFESTYLE

Verdugo Declares Football the Love, Tennis the Discipline, Tarifa the Religion.

An athletic profile of the analyst — from Málaga sun to Madrid courts to the wind-blown Strait of Gibraltar. Three sports, one common thread: long obsessions, quietly maintained.

BY THE LIFESTYLE DESK · MÁLAGA / TARIFA / MADRID

ON THE PITCH

ON THE PITCH

Lifelong fan, Spain national team

ON THE COURT

ON THE COURT

Tennis at a high level since childhood

ON THE WATER

ON THE WATER

Two summers as an instructor in Tarifa

ATHLETIC fluency, friends say, is what gives the analyst his edge. Verdugo, who grew up in Málaga and now studies in Madrid, has spent more weekends on a pitch, a baseline, or a board than most ML engineers spend in front of a monitor. He insists this is unrelated. Colleagues are not so sure.

⚽ The Football Years

First sport, longest love. Verdugo is a lifelong football fan in the way that only Spaniards born under the right shade of sun can be. He follows match days with the kind of devotion that puts calendar reminders to shame; he has, on at least one well-documented occasion, optimised his university schedule around fixtures.

The obsession leaks productively into work. ProScout ($PSCOUT) and PremierBot($PREMIER) — both ML projects listed on the Verdugo Index — are direct outputs of an analyst who could not stop asking, “but statistically, who should this team have signed?”

🎾 The Tennis Discipline

Where football is the heart, tennis is the temperament. Verdugo has played tennis at a high level since childhood — long enough that the rhythm of footwork, racket prep, and between-point ritual has become, in his own words, “the quietest part of the day.”

The discipline shows up in his code: the bachelor's thesis, Tennis-Match-Length($TENNIS), is a 68,803-match dataset and a point-level Monte Carlo simulator dressed up as a final-year project. It exists because someone who has spent years on a baseline cannot, in good conscience, let the question “how long is this match going to take?” remain unanswered.

🌊 The Tarifa Religion

For two consecutive summers, the analyst was not an analyst at all. He was a windsurf instructor in Tarifa, the southernmost municipality of mainland Spain — a town defined less by its size than by the relentless Levante and Poniente winds that shape its coastline.

Sources close to Verdugo say he speaks of Tarifa with the vocabulary of a believer rather than a tourist. The board, the sail, and the chop of the Strait of Gibraltar are, for him, the place where the noise stops. “You cannot think about gradient descent on a wave,” he is reported to have said. Analysts believe this is the point.

Continued on §3 — PROFILE & CLASSIFIEDS ↓

CONTINUED ON §3 · PROFILE & CLASSIFIEDS

Wall Estrit Journal— continued —
PROFILE & CLASSIFIEDS·PAGE 4·§3

§3 · PROFILE

From Málaga to Madrid: A Profile of the Analyst.

The 21-year-old IE student on building products that ship, raising venture capital at nineteen, catching fraud at scale, and learning when to delete his own code.

BY THE PROFILE DESK · MADRID

The analyst, off-duty
PICTURED: Verdugo, off-duty. The analyst confirms he does, in fact, leave the terminal occasionally.

SERGIO Verdugo Rubio sits across the table with the precise calm of a person who has already calculated three different ways the conversation could go. He is twenty-one, six months from a Bachelor's in Computer Science and Artificial Intelligence at IE University Madrid, and on paper he reads less like a senior student than like a junior fund manager — a restless builder by his own admission.

His résumé tracks the unusual arc of someone who started early and kept compounding. At sixteen, he co-founded blockchain startups Bproto Labs and Cortex Network in Colorado, helping raise approximately $1.5 million in venture capital and securing an Aleph Zero grant for a decentralised DNS protocol written in Rust. By the time most students were writing their first CV, he was translating technical roadmaps into investor-ready materials.

At MEmob+, the Dubai-based AdTech and location-intelligence firm where he interned as an ML Engineer through the second half of 2025, he built scalable AWS EMR + PySpark pipelines for production location data. The accomplishment he downplays most — and probably should not — is the audit in which he discovered that over 75% of the firm's incoming location feed was fraudulent, a finding that materially changed how the company priced its products.

He also prototyped a road-heatmap module using the Mapbox Directions API combined with geospatial optimisation, which — by his own measurement — reduced required external API calls by approximately 95%. “The constraint made the design,” he says.

Today his attention is on Brainy Buddy, the AI study planner now live at brainy-buddy.com (with an EU-compliant LTI extension shipping into European universities) and SocialMedia AI, the video-pattern SaaS he describes — without much self-deprecation — as “one of my biggest projects.”

On the wall above his desk is a quiet, paradoxical reminder of two delisted holdings: $DEGU (a corruption tracker he was forced to shut down when hosting bills became unsustainable) and $ETERNAL(a privacy-first WhatsApp memory vault, paused for the same reason). He refuses to take them off the books. “The losses,” he says, “are part of the track record.”

In his free time: football, tennis, windsurfing, and the occasional well-timed disappearance to Tarifa.

THE NEWSPAPER ENDS HERE

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