The wheel strategy, measured
Sell a cash-secured put, take the shares if assigned, sell covered calls until they are called away, repeat. Here is how the parts behave on real quotes, and where the wheel quietly goes wrong.
How the wheel works
Step one is a cash-secured put. If it expires worthless you sell another. If you are assigned, you now own 100 shares at the strike, and step two is selling covered calls above your cost until the shares are called away. Then the wheel starts over.
The appeal is that every step collects premium. The catch is that assignment happens precisely when the stock has fallen, so the covered-call leg often starts from shares worth less than you paid, and calls sold above your cost pay little premium.
Where the returns come from
Almost all of the wheel's expectancy lives in the put leg, which we have measured directly: about +0.8% a trade on collateral across roughly 1,100 replayed trades, an 86% win rate, and an average loss about twice the average win.
A buy-write, owning the shares and selling calls, turned out to be economically the same position as the short put on the same strike in our replays. Switching between the two legs changes the bookkeeping more than the risk.
Where the wheel goes wrong
Ticker choice. A wheel on a leveraged or single-sector ETF collects richer premium and then gaps through the strike far more often. In our own history one such assignment erased more than the two winning trades before it combined. We no longer sell options on that ticker at all.
Holding a falling stock to avoid realizing a loss. The wheel tempts you to keep selling calls below the market instead of admitting the trade lost. Decide in advance what makes you hold, sell, or take the loss, and write it down before the position exists.
Stacking. Wheeling QQQ, TQQQ and a big tech name at the same time is one Nasdaq bet sized three times. Count the maximum loss per underlying factor, not per ticker.
A better way to judge your own wheel
Do not judge it on win rate; a wheel always looks good there. Judge it on return per dollar of cash tied up, including the assigned stretches, and compare that with simply holding the index or a covered-call fund over the same weeks. If a passive alternative beats it, the effort is not paying.
Historical replays are not a forecast. Options can lose more than the premium collected. This is education, not a recommendation to trade anything.