Trailing Stops Do Not Remove Gap Risk

A trailing stop can tighten an exit during continuous trading, but it cannot force the market to print through every price between Friday's close and Monday's open. If the pair gaps beyond the last accepted stop, the fill may occur at the next available quote.

The mechanism is easy to misunderstand. A trailing rule only changes the Stop Loss after favorable movement and a successful update. Once set, the stop is still an activation instruction. CME's education on stop orders shows why the trigger price and execution price can differ, while MetaTrader explains that a local trailing function may stop updating when the platform is offline.

Weekend review for a trailed position

Record the current broker-side Stop Loss, not the theoretical trail.
Estimate loss at several gap prices beyond that level.
Review scheduled events and unresolved geopolitical headlines.
Decide whether to reduce, hedge or close before liquidity disappears.
Confirm the order remains valid through rollover and reopening.

Assumption	Safer replacement
“The stop locks my profit”	“The last accepted stop defines the trigger”
“The market must trade my level”	“The next quote may be beyond it”
“The trail runs on the broker”	“Verify where the algorithm runs”
“A major pair cannot gap much”	“Stress the cash loss anyway”

The need for this review is visible in current markets. Reuters reported that oil and the dollar had moved sharply as conflict risk and Fed expectations changed. The ECB raised rates on September 10, the Fed decision is due September 16 and the BOJ follows on September 18. A weekend or session break can absorb new information before retail platforms show a tradable quote.

The September 13 weekly forex outlook is useful for mapping the event sequence. It cannot establish the price at which a future gap will be filled.

The closed loop is a cash calculation. A trailed stop reduces exposure only to the extent that the last server-side level and the next executable quote allow. If a gap loss is unacceptable, the position is too large or should not remain open.