What you’ll take away
- The 8% of the time a far-out-of-the-money short put loses is not random — it is clustered into a handful of weeks.
- Five market-wide readings, combined into one traffic light, decide whether the engine will show anything at all.
- A red light suppresses every idea, no matter how attractive an individual trade looks. Sitting out is a position.
Why a screen needs a kill switch
Here is the uncomfortable truth about high-win-rate screens: the rare occasions when a far-out-of-the-money short put loses are the crash.
Those losses do not arrive spread neatly across the calendar. They cluster — into the same fortnight, on every name at once, in exactly the conditions a per-trade screen is blind to. A scanner that only ever looks at individual contracts will cheerfully recommend selling puts straight into a developing storm, because the storm is the tail it ignores.
So the engine runs a market-wide regime check before anything else — a traffic light with the authority to suppress the entire opportunity list, regardless of how good any single trade looks.
Diversifying across ten short puts in the same market is not diversification. It is the same trade, ten times.
What the weather station measures
Five readings, each answering a different question about market stress. Here is the board as it appears in a mildly deteriorating market:
Two cautionary readings and no outright alarms — this board resolves to yellow: trade smaller, prefer conservative strikes. One genuine alarm, or enough cautions stacking together, and the light goes red.
No single reading decides anything on its own. Each is noisy; several agreeing is the signal. And every reading that contributed to your light is spelled out in plain language on the scan itself — you always see why the light is the colour it is, never just the colour.
On broken feeds
If one of the data feeds is stale or unavailable, the scan says so explicitly rather than quietly treating the missing signal as reassuring. A silent hole in a safety net is worse than a visible one, because you would size positions as though the net were there.
What each colour means for you
Green
Favourable conditions for selling premium. Every other gate in the pipeline still applies — green is permission to look, not a recommendation.
Yellow
Tradable with respect: smaller size, strikes further from the money, and a lower tolerance for holding through news.
Red
No new short-premium ideas are surfaced at all. You can still open the chain manually, but it carries a prominent crash-risk warning.
Note what red does not do: it never hides information from you. The chain is still there, the numbers are still computed, and the warning explains what the engine is worried about. The default is to sit out; the decision remains yours.
Sitting out is a position. The premium you don’t collect during a red week is rent; the drawdown you skip is the building.
What this cannot do
Regime signals lag, and they miss
Every input here is derived from prices, so nothing warns you about a shock that has not begun to be priced — a weekend headline, a single-name fraud, an overnight policy surprise. The board reduces your exposure to the storms that announce themselves. It cannot help with the ones that do not, which is why position sizing, not signal quality, remains your actual defence.
It also cuts the other way: a red light sometimes clears without a crash, and you will have missed a profitable week. That is the cost of the insurance, and it is a cost you pay in full and visibly. The Methodology page shows how the gates are tested against history, including what they cost when they were wrong.
Next lesson
8. Why we won't sell you an option expiring next weekNear expiry, gamma turns a comfortable winner into a full loss in one session. We refuse to start trades there.Educational information only — not investment, tax, or legal advice. Nest Money is not a registered investment adviser or broker-dealer. Every figure and diagram in this lesson is illustrative. Options involve substantial risk of loss, including loss greater than the premium collected.