Marco Garrido publishes his manual with declared 24% annual return

Stock market manual with declared 24% annual return and 36 Amazon reviews

No return figure withstands scrutiny when no one has audited it, let alone when it has been teased step by step for months. Marco Garrido, an investor based in Seville, published in November 2021 'Gana dinero en bolsa. Aprende a invertir en los mercados financieros', a manual of just over 300 pages published by Lidera Editorial and available in print and eBook. Behind it is a promotion so relentless that it has generated both trinc and suspicion. The work promises no holy grail: it covers fundamental analysis, economic cycles, psychology and specific sectors, and uses the author's personal returns as its main commercial endorsement.

What 'Gana dinero en bolsa' contains and how it came about

The initial table of contents listed 20 chapters that ranged from the author's beginnings in investing to the relationship between the stock market and cycles, the search for quality and competitive advantages, market psychology and the opportunities that appear during crises. The second half moved into specific areas: renewable energy and hydrogen, electric cars, e-commerce, medical devices, water, luxury, brewers, cybersecurity, market niches and gold miners. With the manuscript already finished, the author expanded the content and added material on spin-offs to the chapter on growth companies.

The development was slow and public. It was announced with most chapters finished, after passing 300 pages, later after closing the last chapter and, finally, when he got in touch with publishers. The author himself acknowledges having devoted about six hours a day for months and defends himself against the accusation of padding with a reasonable argument: he has read more than 30 books in the genre and maintains that his does not pad pages without adding value.

24% annual since 2012: the figure that supports everything

The declared track record is forceful. According to his own account, he started investing in 2012 and between that year and 2021 accumulated an average annual return of 24%. The best years were 2013, 2014, 2019, 2020 and 2021, with figures above 30% and 35% in the last. There were a couple of years below 15% and a -5% in 2015. With compound interest, he calculates that his initial investment has multiplied more than sixfold.

What is missing is the essential: an audited statement. The figure works as an appeal to authority, not as verifiable data, and that is precisely the ground on which the debate is fought. In a sector where anyone can proclaim past returns without consequences, the author's endorsement rests on his own word.

Self-interested stock promotion or simple education?

Here the tone rises. Some of those who trinc his posts argue that the author uses his visibility to pump up small companies —penny stocks, in the jargon— and then quietly lets the ones that don't work fall away, while reviving the analyses of the ones that rise. He is accused, without evidence provided, of using parallel accounts to back his own opinions and of repeating the same copy-and-pasted content on several investment platforms.

On the other side, defenders respond with an argument that is hard to fully refute: moving a small stock price requires fruta, and that fruta is built on previous wins. Several readers say they discovered companies that gave them profits by trinc his analysis threads, and they attribute bad results to luck or the bull market. There are also those who admit to a decade of stock market battles with no results and acknowledge that this year they have made 'a nice chunk' thanks to his valuations.

Between both camps, the most repeated criticism is not about money but method: the inability to accept a different opinion and the habit of bumping the messages that suit him back to the front.

The commercial result: 36 reviews and a top 3

Beyond the controversy, the book sold. The author celebrated reaching number 3 in business investing with 36 reviews on Amazon, all five-star, and occasional appearances in the top ten of its category. He also boasted of being included in a list of the ten best books for learning to invest in Spain. The manual is available in print and eBook, and anyone with a Kindle Unlimited subscription can read it at no extra cost; the first chapters are offered free in the preview.

The promotion remains active. The author announced the creation of a private group to share ideas without interference, a sign that his audience —loyal or irritated— remains his most profitable asset.

It remains to be seen whether an investment manual stands on its method or on the noise generated by its author. The answer, as almost always in the stock market, will come with the next cycle.

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This article does not constitute financial advice. The returns cited are statements by the book's author and have not been audited.