The commodity hold-forever thesis fails drawdown and ruin screens

Needed goods and residual value

Commodity prices are treated as able to become extremely cheap while still retaining residual value, because they are framed as needed goods rather than claims that can expire at a true zero. Individual equities can become completely worthless and be delisted, ending any recovery path. That ending is contrasted with commodity markets, which have not been observed going to zero.

Producer expansion when prices are high and contraction when prices are low are cited as opposing forces that work against a permanent collapse to a zero price. That boom-and-bust feedback is the commodity-cycle: high prices expand supply, and later low prices force production cuts and revive demand.

Unlimited capital, unlimited time, and leverage-control

The theoretically unruinable commodity long is conditioned on unlimited capital, an unlimited holding period, and deliberate control of futures leverage. Leverage-control is sizing and margin discipline that keep a survivable price move from becoming a cash call the account cannot meet.

A hold-through-any-storm construction is judged possible in theory and more feasible in commodities than in stocks, yet still unrealistic for actual traders.

A stretch-but-possible paper-loss

A 70 percent decline from current value is used as a stretch-but-possible stress case for a long-term, single-lot commodity position. Scenario-risk-analysis is the pre-trade what-if that translates a plausible price path, such as a large percentage decline from entry, into cash loss per contract.

Under that 70 percent case, a long crude lot entered near 45 is assigned a paper-loss of 31500, and an emini equity-index lot is assigned a loss above 70000. Paper-loss is the unrealized decline on an open position, measured from entry to a stressed market price.

Why the never-lose case does not survive

Transaction costs, unfavorable contract rolls, rare brokerage failures, and the trader dying before recovery are listed as reasons the theoretical never-lose case does not survive contact with real constraints. A contango-roll replaces an expiring futures month with a later month when deferred prices are higher, which can bleed a long-term long.

Even large funds are said to lack unlimited capital and generally cannot hold indefinitely if investors withdraw during deep drawdowns. Entering a long-term long after a massive upswing, illustrated with crude near 150 in 2008, is described as a recovery that may take years, decades, or longer than a lifetime.

Bound the loss before the size

A drawdown-limit is a hard bound on how large an open loss or equity decline may become before a position is treated as too large to hold. Risk-of-ruin is the chance that finite capital, time, or staying power is exhausted before price can recover from a deep adverse move.

Editorial reading: those two screens, together with the scenario cash loss, have to be bounded before a hold-forever size is chosen.