VOO / SPY
$60,000
Long-term broad-market holding
Paper Trade library
Experiment 03
Does the $150,000 Cashflow Machine Survive?
A stress test of the original idea: keep $150,000 permanently invested, use the portfolio for brokerage buying power, sell margin-backed short puts, and reinvest the premiums. It investigates the loop without calling it safe, cash-secured, or proven.
Experiment 03 · observed prices + modeled overlay
First: the original idea
What is the Cashflow Machine?
It starts with a simple idea: invest $150,000 in a long-term stock portfolio, plan to hold it for decades, and normally do not sell it. That equity portfolio—not the options—is the main compounding engine.
QQQ
$60,000
Long-term growth holding
High-conviction companies
$30,000
Businesses the investor can explain and hold
Dedicated cash collateral
$0
The original design deliberately keeps none
The proposed loop
Why someone might call it a machine
Because the account already owns a sizeable portfolio, a brokerage may provide additional options buying power. The proposal is to use some of it to sell puts, collect premium, and buy more long-term assets with that premium.
01$150,000 long-term portfolio
02Portfolio creates brokerage buying power
03Sell a put on a company we would like to own
04Receive option premium
05Reinvest premium into VOO / QQQ / quality stocks
06Portfolio becomes slightly larger
07May create more buying power
08Sell future puts
09Repeat
Engine 1
Normal portfolio compounding
VOO, QQQ, and good companies appreciate and reinvest dividends over time.
Engine 2
Option premium
Short puts periodically produce premium; that cash can purchase additional long-term assets.
The option premium is not the primary engine of wealth creation. The permanent equity portfolio is. The proposed advantage is that put premium may add incremental compounding on top of that base.
A simple illustrative example
How would incremental compounding appear?
Starting portfolio: $150,000
Illustrative 10% gain in holdings: $165,000
Illustrative put premium: +$4,000
Portfolio after reinvesting premium: about $169,000
These figures only demonstrate the claimed mechanism. They are not expected returns, and they do not mean 10% and premium automatically add together.
Why sell a put instead of simply buying stock?
What a $90 put means in plain English
Suppose a company trades at $100 and the investor would like to buy it at $90. Selling one $90 put means a possible 100-share purchase: $90 × 100 = $9,000. If the premium is $5 per share, the account receives $500 first.
Outcome A: stock stays above $90
No shares are bought; the put expires; the premium remains.
Outcome B: stock falls below $90
The investor may be assigned 100 shares. The economic entry is about $90 − $5 = $85 per share, before fees.
The original selection rules
Not random put-selling for a high premium
The idea is to sell puts only on companies the investor would genuinely be comfortable owning.
- 01
The company appears below fair value today.
- 02
It has a real moat and pricing power.
- 03
Profits have grown or held quality over multiple years.
- 04
The strike is roughly 10% or more below the current stock price.
- 05
Expiration is about one year or longer.
Point-in-time fair value and fundamentals are not reconstructed here; these are strategy assumptions, not fabricated historical proof.
Normal-market walkthrough · fully modeled
This is where the Cashflow Machine looks most attractive
Starting equity portfolio
$150,000
Put notional
$15,000
Modeled premium, reinvested
$750
Market rises; put expires
+8% / $0 assignment
An 8% rise adds about $12,000 to the base holdings; the reinvested $750 moves with the market too. Versus buy-and-hold, the incremental piece is the premium—not a second free return stream. The stress test next asks what happens if the market falls 30% instead.
So where is the catch?
Where does the money come from if puts are assigned?
Important distinction: this is not a cash-secured-put strategy. There is intentionally $0 in dedicated assignment cash. The short puts are portfolio-collateralized (margin-backed), so a falling equity base and falling puts can raise margin pressure at the same time.
When stocks rise, account equity and buying power may rise. In a crash, equity collateral falls, short puts lose value, margin utilization rises, and buying power falls at the same time. Assignment may require borrowing or selling assets, creating a real conflict with the promise to never sell the base.
Stress laboratory · modeled values
Test the original Cashflow Machine here
There is no dedicated cash collateral here. The permanent stock portfolio supplies broker collateral and buying power—the original hypothesis, and the contradiction that can force the sale of “never sell” assets in a crash. Option premiums and margin figures below are transparent teaching-model values, not observed history.
Put exposure (of starting portfolio)
Uniform market-decline stress
The state reflects this simplified model’s maintenance requirement and account equity; it is not any broker’s margin-call prediction.
Base portfolio value
$90,000
Put notional obligation
$30,000
Modeled premium received
$1,500
Short-put mark-to-market loss
−$9,000
Account equity
$81,900
Maintenance requirement
$35,325
Remaining buying power
$46,575
Collateral utilization
43.1%
SAFE
Survival map
At what decline does collateral stop being enough?
Rows are gross put obligation as a share of the $150,000 starting portfolio. Columns are uniform stress tests, not a claim that every asset historically fell by the same amount.
| Put exposure | Normal | −20% | −30% | −40% | −50% |
|---|---|---|---|---|---|
| 10% | SAFE | SAFE | SAFE | SAFE | SAFE |
| 20% | SAFE | SAFE | SAFE | SAFE | SAFE |
| 30% | SAFE | SAFE | SAFE | SAFE | STRESSED |
| 40% | SAFE | SAFE | SAFE | SAFE | MARGIN WARNING |
| 50% | SAFE | SAFE | SAFE | STRESSED | FORCED LIQUIDATION |
Machine breakdown
The upside loop (hypothesis)
01Permanent equity base
02Broker buying power
03Sell margin-backed puts
04Premium received
05Reinvest premium
06Potentially more buying power
The crash loop
01Market crash
02Equity collateral falls
03Short puts lose value
04Margin utilization rises
05Buying power falls
06Assignment or forced sale becomes possible
Historical stress windows · observed prices
Real prices, never mixed with modeled premiums
| Window | Dates | SPY | QQQ |
|---|---|---|---|
| Dot-com collapse | Mar 24, 2000 → Oct 9, 2002 | -47.52% | -82.94% |
| Global Financial Crisis | Oct 9, 2007 → Mar 9, 2009 | -55.19% | -51.56% |
| COVID shock | Feb 19, 2020 → Mar 23, 2020 | -33.72% | -27.92% |
| 2022 bear market | Jan 3, 2022 → Oct 12, 2022 | -24.5% | -34.29% |
Data: Yahoo Finance adjusted closes. The high-conviction-company basket and historical option chains are not fully reconstructed, so they are not fabricated.
Model boundaries
How the model calculates—without hiding assumptions
Margin proxy
Long-equity maintenance = 25% of current equity value. Short-put requirement = max(10% of notional, intrinsic loss + 20% of current underlying notional). Remaining space = account equity − total maintenance. This is not an exact Reg-T or portfolio-margin reproduction.
Option proxy
The put begins 10% OTM and receives a modeled one-year premium of 5% of put notional; premium is immediately reinvested and rises or falls with the market. No historical option quotes, spreads, fees, or financing costs are fabricated.
DTE hypothesis comparison
Modeled annualized premiums: 30–60 DTE 7.5% · 90 DTE 6.5% · 180 DTE 5.5% · 365+ DTE 5.0%. Not historical proof.
Strike-distance comparison
Modeled annualized premiums: 5% OTM 8.0% · 10% 5.0% · 15% 3.4% · 20% 2.2%. Ten percent is a hypothesis to test, not a fact.
What the experiment now asks
- 1. Does premium reinvestment improve total return after losses and financing?
- 2. How much gross put exposure survives a simultaneous equity-and-put decline?
- 3. At what point does the collateralized base make ‘never sell’ impossible?
- 4. Do different DTE and strike distances improve the trade-off?