How it works: the holder puts $5,000 into 0.10 BTC. Bitcoin doesn't move, so the position ends flat at $5,000 — a 0% return. The mining investor puts the same $5,000 into 100 TH/s. Over the period the position mines 0.06 BTC, worth $3,000 at exit. Hashrate softens slightly, from $50 to $45/TH/s, so the resale value is 100 × $45 = $4,500. Costs run $1,500. Through the formula: Total return = $3,000 + $4,500 − $1,500 = $6,000, a +20% return. The holder earned nothing because the price stood still. The mining position still made money, because it kept producing the whole time. That's the case nobody markets: in a quiet market, doing nothing earns nothing, while a working position keeps working.