Archive - Jordan Martenstyn

Duolingo: Love the Business, Don't Love the Valuation

40%+ revenue growth, 73% gross margins, 26% adjusted EBITDA margins, pristine balance sheet - what's not to love? The valuation ...

Apr 29 •

Jordan Martenstyn

March 2025

Why I'm Buying Shares in Wise

Wise has quickly grown into a top 5 holding for me. Clear cost advantages vs. incumbents, massive TAM, double-digit revenue growth, 20%+ margins…

Mar 26 •

Jordan Martenstyn

February 2025

My Public Market Investing Checklist

In this article, I outline the exact checklist I run through for all potential public market investments (updated in February 2025). Feedback welcome!

Feb 10 •

Jordan Martenstyn

January 2025

Kaspi: A High-Quality Technology Business Trading on a Dirt Cheap Multiple

I'm back! In this article, I dig into Kaspi, the largest technology business in Kazakhstan growing 20%+ with 40%+ net income margins, trading at 7x…

Jan 15 •

Jordan Martenstyn

August 2023

My Favourite Media Content - August 2023

Here's a glimpse into my favourite media content from August 2023.

Aug 28, 2023 •

Jordan Martenstyn

Learnings from Q2 2023 US Fund Manager 13F Filings

Here are my key learnings from Q2 2023 13F filings of concentrated US fund managers with a proven track-record of outperformance vs. the market.

Aug 21, 2023 •

Jordan Martenstyn

Brief Q2 Earnings Review of 3 of My Highest Conviction US Stocks

Coupang, Duolingo, and MercadoLibre all reported strong Q2 2023 results.

Aug 10, 2023 •

Jordan Martenstyn

July 2023

Spotify: Phenomenal User Growth, but Margins Remain a Concern

Another quarter of the same for Spotify: phenomenal user growth, but gross and operating margins remain a concern.

Jul 25, 2023 •

Jordan Martenstyn

My Favourite Media Content - July 2023

A glimpse into the best podcasts, articles, videos, and books I consumed in July 2023.

Jul 22, 2023 •

Jordan Martenstyn

Digging into Rent the Runway

With rapidly decelerating growth rates, weakening cohort retention metrics, horrific customer reviews, limited inside ownership, and a concerning debt…

Jul 2, 2023 •

Jordan Martenstyn

June 2023

The Best Media Content I Consumed This Month (June 2023 Edition)

Here's a glimpse into the best podcasts, videos, articles, and books I consumed in June 2023.

Jun 25, 2023 •

Jordan Martenstyn

May 2023

The Best Media Content I Consumed This Month (May 2023 Edition)

Here's a glimpse into the best articles, podcasts, videos, and books I consumed in May 2023.

May 31, 2023 •

Jordan Martenstyn

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