Bastion — The Fortress Engine / Full brief / September 2026
Bastion is a custom-built derivatives engine that takes ordinary stock exposure and rebuilds it into something shares can never be: a position that pays you every week, caps its worst case at a number you chose before entering, and ties up a fraction of the capital. This brief covers what it is, what it has actually done on a live book, where it is going next, and the machine that runs it. What it does is public. How it does it is not.
Owning shares gives you exactly one way to win: the price goes up. While you wait, the shares pay a dividend of one or two percent, if that. The standard alternatives for anyone who needs cash flow from a portfolio are not much better. Bonds lock up capital for safety and pay little for it. The four percent rule is a polite way of saying sell a slice of yourself every year and hope the market cooperates.
Bastion started from a different question: not which fund should I buy, but what am I actually trying to engineer. The answer was three things at once. Real participation if the market keeps doing what it has done for a century. Real income landing every week regardless of what the market did that day. And a maximum loss chosen in advance, rather than discovered in a crash.
Nobody sells that as a single product. So it was built.
The construction, which contracts, at which levels, in which proportions, stays in the kitchen. What can be shown is what the machine delivers, because every property below is measured on real runs against a live brokerage account.
Before entry, the maximum loss is a dollar figure you picked, not a hope about how far a crash can go. Below the structure’s floor, further downside costs nothing more. Stock’s only floor is zero.
Premium income in real cash, week after week, whether the market rises, drifts, or dips. On the index build it runs roughly 30–50× what the same dollars earn sitting in shares. On the live book it has averaged $83K a month.
The same exposure is controlled with roughly half the cash and no margin loan, so a rising or flat market pays a multiple of what the shares pay, before the income is even counted.
In the modeled −20% to −50% crash with a volatility spike, the book’s spare borrowing capacity rises. The structure gets safer as the market falls, as long as its protection is kept current.
| Pure stock | Bastion | |
|---|---|---|
| Capital tied up | 100% of the position, in cash | Roughly half, no margin loan anywhere |
| Income while you wait | Dividend, if any (~1–2%/yr) | Weekly premium, ~30–50× the dividend |
| Market up or flat | You earn the move | A multiple of the move, plus the premium |
| Mid-size drawdown (−10% to −40%) | Smaller markdown | Marks lower while it lasts: a number on a screen, not a bill, unless you sell into it |
| Crash (−50% and deeper) | Keeps falling, all the way to zero | Loss saturates at the floor; deeper is free |
| Worst case | The entire position: a hope, not a number | A number you picked before entering |
| Effort | Zero. Buy and forget | Weekly decisions: a discipline |
This is not a backtest. Since February 1, 2026 the engine has run 42 positions across a live brokerage account, $2.14M of capital deployed against a fixed $4.16M worst case, through a year that has been anything but kind to the highest-beta names it holds. Every figure below is realized cash from the trade log, net of every losing trade.
Income banked since Feb 1
$584,850
Net premium income, real losses included. Eight months.
Trailing 12 weeks
$20,925/wk
Average completed week. Last 60 days on the positions held today: $179K at a 54% annualized yield.
Blended yield
53%
Annualized income on capital deployed; 29% on the worst-case budget.
Net income by month, live book
Realized premium income net of buybacks and losses · Feb–Sep 2026 · September is month-to-date (3 days)
Every month has been positive, including May, when the book was mid-restructure and income throttled deliberately. July, the best month, banked $127,640 at a 74% annualized yield on capital. The blended eight-month figure is $584,850.
| Month | Positions | Net income | Yield on capital | Yield on worst case |
|---|
And the honest half of the ledger, because it is what separates a track record from a brochure. The same eight months put 20 of the book’s 30 fortresses underwater on the screen, a live drawdown of about $1.09M concentrated in the highest-beta sleeves. After all income and hedging, the book’s net live position marks at about −$442K. That is the trade in plain sight: $585K of cash in the bank against a paper mark that has not been realized, on a book engineered so that the mark cannot fall below a number that was fixed on day one. The income does not stop while the screen is red. Section 4 shows why that matters more than the mark.
Bastion is not bought on margin. The capital is committed upfront, not borrowed on top of the structure, so nothing forces a sale because an account ran out of buying power. The only thing that turns a markdown into a real loss is choosing to sell into it. Give the position real runway, a horizon like December 2028 rather than a headline about this quarter, and the pattern history keeps repeating is that the market has always eventually recovered.
Meanwhile the income keeps landing. Across a century of S&P calendar years, roughly three in four end at a level where the index build beats holding the shares outright. The markdown years come about once a decade (2022-class, healed in about two years) and once a generation (2008, healed in about four). Sitting through the round trip is what Bastion is paid for: the meter runs the entire time the screen is showing you a markdown, while the shareholder waits for free.
| Index, one year out | Years like it | Stock | Bastion (Bedrock build) | Verdict |
|---|---|---|---|---|
| +20% | 2017, 2023, 2024 | +$20K | ≈ +$58K | Bastion 2.9× |
| +10% | 2004, 2016 | +$10K | ≈ +$42K | Bastion 4.2× |
| Flat | 2011, 2015 | ~$0 | ≈ +$25K | Bastion runs away |
| −10% | 2000 | −$10K | ≈ −$14K | Nearly a wash |
| −18% | 2022, healed in ~2 years | −$18K | ≈ −$39K on the screen | Stock marks better |
| −37% | 2008, healed in ~4 years | −$37K | ≈ −$90K on the screen | Stock marks better |
| −50% or worse | Never since 1926 (worst: −44%) | −$50K, still falling | Capped at the budget | Only stock can visit |
Modeled outcomes on the index book, per $100K of worst-case budget, equal max-loss sizing. Red cells are marks at the year boundary, not money spent; they realize only on unwind.
The engine has four settings, so the risk dial matches the person holding it rather than a generic box on a questionnaire. Every build below is sized to the same $100K of maximum loss on the index, from a live run, so the row is the only variable.
| Build | Capital tied up | Leverage | Income this year | Mark if the index drops 20% |
|---|---|---|---|---|
| SPEARHEAD Least cash, most growth | $25.0K | 5.0× | $26.3K | −$39.0K |
| HARVEST Biggest paycheck | $68.9K | 4.5× | $55.3K | −$62.8K |
| BEDROCK Smoothest ride | $46.8K | 2.1× | $20.3K | −$29.5K |
| BULWARK Lowest leverage | $87.7K | 1.4× | $23.1K | −$34.2K |
For growth-focused investors who can shrug off the roughest screen.
For income-first investors who can sit through the widest swings.
Holds its marked value best through the drawdowns that actually happen.
The smallest bet, dollar for dollar. Takes the lead only in the deep tail.
Leverage is exposure per dollar committed, not a promised return. Marks are vol-adjusted screen numbers, not bills. Point the same machine at a high-volatility single name and everything roughly doubles: twice the income density, twice the endurance required.
Take the engine off a single stock and run it as a portfolio. The model book below is rebuilt by rule every night from the live book’s realized run-rates, not hand-picked: no correlated cluster above 30%, crypto capped at 8%, built for capital preservation, all-weather income, and diversification. It is what Bastion looks like as a complete answer to the cash-flow problem rather than a single trade.
Expected income
$37.8K/mo
From realized run-rates, net of buybacks.
Yield on the worst case
45%
Income × 12 against the fixed $1M loss budget.
Yield on capital deployed
111%
About $407K of cash builds the whole $1M-budget book.
| Cluster | Share of budget | Role |
|---|---|---|
| Semis / AI infrastructure | 32% | Core growth and yield |
| Space / defense | 25% | High-yield, capped |
| Precious metals | 15% | Ballast |
| Index ETF | 13% | Ballast |
| Crypto beta | 8% | Capped by rule |
| Mega-cap tech | 7% | Core |
Every night’s predictions for this model are frozen to a ledger and graded a month later, constituent by constituent, including the exclusions. The model is held to its own forecasts.
Income is the first thing the engine does. It is not the only thing. The same architecture that caps a worst case and pays a weekly premium can be pointed at the opposite problem: capturing a very large, very uncertain upside without betting the account on it.
The working example is the crypto sleeve. A conventional margined book of miners, exchanges, and Bitcoin exposure is worth about $26M if the names reach their end-2027 targets. Getting there the conventional way means carrying roughly $1.19M of worst case plus a forced-liquidation cliff around a 20% drop, and paying a steady bleed of crash insurance that decays exactly when the recovery arrives.
The Bastion version of the same bet reproduces the same $26M target payoff with $137K of net cash and a fixed $633K worst case, funded in full to that reserve so nothing can force-liquidate it. It participates later, deep out of the money until the move is well under way, and that is the point: the shape of the path is traded for the removal of the cliff. Rolled forward in mid-2027 as deeper tenors become liquid, it is a moonshot with a known price tag.
| Conventional margined book | Bastion moonshot build | |
|---|---|---|
| Value at end-2027 targets | $26.0M | $26.0M |
| Net cash required today | Already held, plus maintenance margin | $136,509 |
| Worst case | ~$1.19M plus assignment risk | $632,559, fixed |
| Forced liquidation | Yes, around a −20% move | None. Funded to its max loss |
| Participation | From the first dollar | Late, then accelerating |
Live marks as of August 22, 2026, modeled to end-2027. Targets are the book’s own scenario assumptions, not forecasts.
A strategy that demands a decision most days cannot live in a spreadsheet. So it lives in software: a private, end-to-end platform that plugs into a live brokerage, pulls market data, rebuilds itself every night, and keeps its screens current in real time through the trading session. It is strictly read-only. It models, ranks, and recommends. It never places a trade.
Lines of code
214K+
Past the first version of Photoshop, past the core of SQLite.
Specialized tools
54
Each a focused engine, sharing one hardened data layer.
Lines of tests
41K+
A change in one place cannot quietly break the math in another.
The whole system refreshes, recomputes, and republishes on a schedule with no one at the keyboard, then deploys clean dashboards to the cloud.
A live position feed watches every account. A fill in the trading platform re-scopes the affected position within seconds. Nothing needs a restart.
A new recommendation must persist through a confirmation window and survive a real-quote check before it replaces the old one. Every change is journaled.
Every candidate premium is discounted by the odds the market runs at it and what escaping would cost. Gross is what sellers advertise; expected net is what lands.
Instead of one number, it traces loss across the full range of outcomes and shows where the damage actually concentrates, before it matters.
Picks, projections, and the model portfolio are frozen to ledgers and scored weeks later. The platform keeps a public record of being right and wrong.
Replacement cost at Bay Area engineering rates: an estimated $2.7–4.4M and 4.5–6.5 person-years of senior work. Built by one person, part-time, while running against a real account.
If the risks were trivial the premium would not exist. You are being paid precisely because you carry three things.
In a mid-size drawdown the screen marks lower than shares would. It is a number, not a bill, unless you sell into it, but it shows up exactly when everything else is red too. You must be able to look at it, keep writing, and wait.
On the order of fifty to eighty decisions a year. Skip weeks, chase yield, or freeze in a drawdown and the modeled edge quietly is not yours. The platform makes each decision easy; it cannot make it for you.
The protection layer must stay current as it comes up for renewal. Kept, the book gets safer as the market falls. Lapsed, the floor is gone at the moment it exists for. A duty on your own schedule, not a margin call, but real.
Weigh that against the other side of the ledger: a five-figure monthly income stream measured in realized cash, a multiple of the upside in the outcomes that happen most years, a worst case that is a chosen number instead of everything, and a floor below which the crash is free. The risks are the price tag. The item is underpriced.
Anyone who needs a portfolio to produce cash flow without selling it down. Investors who already believe in an index or a name and want to be paid while they hold it. Anyone who would rather know their worst case than hope about it. People who can hold a red number without acting on it.
Money that must never be looked at or thought about. Anyone who needs the marked value to be steady every quarter. Anyone unwilling to make a decision most weeks. For those, holding the index is a perfectly good choice, and this brief says so plainly.
Equal max loss is not equal risk. It is a reallocation. Bastion concentrates its markdowns into the probable band, where history says they heal, and collects a 30–50× income stream as rent for sitting through them. One of these is a machine built on purpose. The other is a hope with a ticker symbol.