A credit spread is tested when the stock approaches or crosses the short strike with time remaining. The defined worst case has not changed, and the position has four mechanical paths: holding while the exit rules stay unbreached, closing at the loss stop, rolling out for a net credit, or adjusting the untested side. Each has exact, knowable consequences; panic is the only path without them.
Less than it feels like. The worst case was fixed at entry, width minus credit, and remains exactly that; what changed is its probability. The position's delta has grown, its mark shows a loss, and the breach odds that entry priced at 15-30% now sit meaningfully higher. Naming what changed matters because the pressure to act comes from the mark, while every sound response comes from the numbers that actually moved: current breach odds, time remaining, and the cost of each path off a fresh quote.
Because the test is the worst moment to design policy: the mark is red, the tape is moving, and every path feels urgent. A discipline that predefines its stop multiple, its roll trigger conditions, and whether wing adjustments are in its playbook turns a tested strike from an emergency into a lookup. The journal then grades the policy across many tests, which no single dramatic save or loss can. This is the same principle that runs through every page of this library: the rules are decided in daylight, and the position merely encounters them.
Less than it feels like. The worst case was fixed at entry, width minus credit, and remains exactly that; what changed is its probability. The position's delta has grown, its mark shows a loss, and the breach odds that entry priced at 15-30% now sit meaningfully higher. Naming what changed matters because the pressure to act comes from the mark, while every sound response comes from the numbers that actually moved: current breach odds, time remaining, and the cost of each path off a fresh quote.
Holding under the rules costs nothing new and keeps the original thesis: most tested strikes are tested, not breached, which is what 15-30% entry odds mean. The exit rules stay armed; holding is only a decision to let them keep working. Closing at the stop, commonly when the buyback costs a multiple of the credit, converts a possible maximum loss into a smaller realized one and frees the capital. Its cost is realizing losses on the fraction of tested positions that would have recovered.
Because the test is the worst moment to design policy: the mark is red, the tape is moving, and every path feels urgent. A discipline that predefines its stop multiple, its roll trigger conditions, and whether wing adjustments are in its playbook turns a tested strike from an emergency into a lookup. The journal then grades the policy across many tests, which no single dramatic save or loss can.
More in Strategies and structures: Credit Spreads vs Debit Spreads: How Volatility Decides · Iron Condor Entry Screening: What the Rules Check First · Best Delta for Credit Spreads: Why Short Strikes Sit at 0.15 to 0.30