Lionshare frequently asked questions

How the Monday stock portfolio works, who runs it, the track record, taxes, AI, and how to verify it before you pay.

What is Lionshare?

Lionshare is a publicly verified stock newsletter. Every Monday before the US market opens it publishes a full portfolio of around 20 US stocks, each with an exact weight and a stop level, run with the founder’s own money and recorded live on Dub since January 12, 2026. The free Friday recap is open to everyone. The Monday portfolio is $39 a month or $350 a year.

What do I get in the paid Monday portfolio?

The full portfolio for the week. Every position with its exact weight and its stop level in a single table. Then the reasoning, what the system is leaning toward and why with the market backdrop, in plain language rather than three lines of after-the-fact story. The free Friday recap shows you the results before you ever pay.

How much time does it take each week?

About thirty minutes on Monday morning. The portfolio lands before the open with every position, its weight, and its stop. Placing those trades in any broker is the whole task, and then the week is done. No charts to watch, no news to follow.

Which broker do you use?

I run it in Alpaca now, mostly for the API. Before that I used Robinhood and Vanguard. Any broker where you can buy US stocks and set a stop works, so most readers stay with the one they already have. The weights are percentages, so they fit any account size, though a very small account feels rounding and fees more.

What if I cannot trade right at the open?

I place the week’s orders as market orders at Monday’s open and set the stops as standing GTC orders at the same time, so nothing needs watching after. If you place later in the day the prices will have moved, sometimes your way and sometimes against you, and a stop set off a different entry is less precise. None of it is time-critical to the minute, this is not a day-trade, but the closer you are to the published prices the closer your result tracks mine.

Is the track record real, or just a backtest?

Both, and they are different kinds of evidence I treat differently. The live record on Dub is real money, public and impossible for me to edit, running since January 12, 2026, where it has more than doubled while the broad market moved in single digits. The six-year backtest, through the 2020 crash and the 2022 bear, returned 72.7% a year against the market’s 15.6%, but it is a simulation, not a promise. The live record is only months old, so the backtest is the durability evidence and the live record is the reality check, still being written week by week. The free tier exists so you can follow it before deciding anything.

Who is behind Lionshare?

I write under my first name, Seb. I am not a fund manager or an adviser. I am an electronic engineer with a full-time day job, and an ordinary investor frustrated that index funds grew too slowly. I would not gamble on options or trust a guru I could not check, so I built what I wanted instead, the way you build anything meant to last, by testing it until it holds. A few years of design, eight months of paper-trading, then live with my own money on January 12, 2026, every result checked against a frozen, point-in-time record so I cannot rewrite history. The way I work is the proof. The record is public on Dub, it predates any subscriber, and you can check it before you pay anything.

What happens in a bad week?

You get the same email, written the same way. The Friday recap reports the week down to the number, names what fell and whether any stops triggered, with no spin. My own money is down those same weeks, so I feel every drawdown you do, and that keeps me stress-testing the system rather than explaining a bad week away. The losing weeks sit on Dub next to the winning ones, and you can check them before you ever pay.

Does the strategy work in a down market, or just a bull run?

It was tested across both. The six-year backtest covers the 2022 bear, when the S&P fell about 18% and the strategy still finished the year up, as well as the 2020 crash. The system rotates across sectors as conditions change rather than betting on one. It can still have weak years, and it underperformed in 2023. The point is that it was tested across different kinds of markets, not one lucky run, and you can watch how it handles the next rough patch live on Dub.

How concentrated is the portfolio, and how far can it draw down?

Around 20 positions, weighted by conviction, so it is deliberately concentrated rather than spread thin. That is part of why it can move fast in both directions, and why the deepest drawdown in six years of testing was about a third of the portfolio, roughly the same as the S&P over that stretch. A future drawdown could be deeper. The exact weights are published every Monday, so you always see how much sits in each name.

Does Lionshare use AI to pick the stocks?

No. I use AI every day and respect it, but no AI makes a single decision in this portfolio. The reason is the same as everything else here. I cannot backtest an AI’s choices the way I can backtest a fixed set of rules, and I cannot guarantee its judgment stays steady from one month to the next. The point is a repeatable process I can prove, so the stock decisions stay with the rules, where I can audit every one. AI helps me improve and check the system around it, never run it.

What about taxes and turnover?

I am not a tax adviser, so this is not tax guidance, only a description of how the strategy behaves. It changes as the scores change, so it turns over, and most of the gains it books are short-term rather than long-term. The backtest figures are before any tax. What that means for your own situation is yours to work out, with someone who advises on it if you want. The exact weights and every change are published each Monday, so you can see the turnover for yourself.

What if you stop publishing, or the strategy stops working?

You can cancel anytime, so you are never locked in. If the strategy goes through a bad stretch you will read about it the same week it happens, on Dub and in the Friday recap, rather than finding out later. Every position also carries its own stop, so you are never left holding something with no exit, even in a week I do not publish. Nothing gets hidden to protect the subscription. My goal is to run this for many years on my own money. It is a project I have enjoyed building and intend to keep going.

If it works this well, why share it instead of running it yourself, and won’t that erode the edge?

I am not a fund manager with a secret. I wanted the same thing you do and could not find a version I trusted, so I built it and now run it in the open. Sharing does not blunt it. The edge is in picking good companies the market is rewarding, in names liquid enough that a crowd many times this audience could hold the same weights without moving the price, not a scalping trick or a speed game that a crowd erodes. A capacity study confirms the strategy holds its full return into the hundreds of millions of dollars, far beyond any reader’s account. The subscription pays for the real work of publishing it every week and keeps me accountable to the same record you check.

How do I cancel my subscription?

One click from your Substack account settings, anytime, and the option is easy to find. No phone call and no retention maze.