LessonThis is a lesson restated in new words. Any figure in it is an example from the source, not this desk's record.
The wheel is a loop. Own shares, sell a call. If the call expires, sell another. If you are assigned, the shares are gone and you sell a put. If that put expires, sell another. If you are assigned on the put, you own shares again. The lecture calls it mildly bullish, and not free. The screen it builds is there to show whether the strike you are about to sell is still on the right side of your cost.
Why it matters
A fallen price breaks the call side. Premium above the old cost dries up, and premium near the new price can mean a strike below your cost. The screen is a bar for the spot, a line for the cost, and lines for a call strike and a put strike. Green above the cost, red below, orange within about half a percent. The scale is about 20 percent either side of the cost. The lecture wants to see whether a 20 or 30 delta call clears that line, not to hunt chart shapes.
The idea in plain words
A 30 delta call above the cost is a sale the lecture will take, because assignment still sells above the purchase. The same label below the cost is a sale it will not take. The strike moves when the spot moves. The cost does not. So a 30 delta call on one day is not the 30 delta call of last week.
The Nvidia walk-through buys 100 shares. The trading price used as the cost is 217.08. A 52-week high of 216.82 shows up later as an average on a 200-share position. A seven-day call near 30 delta is roughly the 225 strike, for a premium of $189. Assignment would be about $8 a share, $800, plus that premium, on the order of a thousand dollars if assigned. If the cost had been 240 with the spot near 216, a 245 call's premium was $13, small next to the unrealized loss. That is the broken call.
Puts are the other half. One scenario shows a call premium of $588 and a put premium of $454, with $635 of stock gain if the call is assigned, about $1,100 with the premium. Put assignment in that pass carried a $42,000 cash obligation and a new cost of 213. A later pass, with 200 shares, showed a covered-call premium of $414, a put premium of $466, $1,135 of stock gain if called away, a new put-assignment cost of 213 against a current 216, and again about $42,000 of cash at the put strike. The lecture wants the premium marked at the bid, the worse selling price, not the mid. Orders in the demo were tried at the mid and, when the spread was wide, at the bid.
Strikes on a five-point grid showed several times the size of the odd ones. The same point gap was a very different delta on Alphabet than on Nvidia. The resolver takes contracts near a delta, then ranks them with volume, out of the money.
How to use it
Query the position you already have, and do not stack a new strike on it. Two Nvidia calls filled in the demo, with about $44,000 tied up and about $7,000 of cash, not enough to secure another put. A put you cannot pay for if assigned is not this strategy.
On a miners book, cost under 90 and spot 93.67, the lecture sold five 42-delta calls, quoted 1.71 to 1.86, filled at the bid. Assignment at 95 meant $3,332 of stock gain versus $2,567 current, plus $855 of premium. A rip to 105 is missed upside. After assignment the loop sells a put, their example strike 90.
Several underlyings are preferred to one name. A streak can pay. A bear move or a sharp rally can hurt. You have to be willing to hold the shares. The broker handles assignment.
What usually goes wrong
A 30 delta gets sold with no look at the cost. The 240 cost and the $13 premium are that error. The mid gets booked as the fill. The miners' spread, 1.71 to 1.86, is why the demo moved to the bid. Cash gets ignored. With $7,000 free and a put that needs tens of thousands, the put is not secured.
Questions people ask
When is a covered call acceptable in this system?
When the strike is above the cost, so assignment still sells at a gain. A 30 delta whose strike has fallen through the cost is the case the lecture refuses.
What did the 225 Nvidia call pay in the example?
About $189 of premium, plus roughly $800 if assigned against a 217.08 cost. That was a seven-day contract near 30 delta.
Why rank by volume as well as delta?
Because the five-point strikes carried several times the size of the quieter increments. The lecture would rather be close to the delta on a contract that actually trades.