You also suggest selling a fund if it has dropped more than 7%from its most recent high. My question is, if a most recent high occurred in May this year and the fund/ETF is down more than 7% now since May, do you still consider it a sell? What if it was bought since May (maybe shouldn’t have)?
It’s not the recent high, or the high since May, that a fund/ETF has made that’s important. It’s the high that was made since you bought it that counts.
When using a trailing stop loss, which will limit your losses and/or lock in your gains, only the price action, which occurred after your purchase is of any relevance. To be clear, what a fund/ETF has done in the past in terms of price movement maybe a consideration in your selection process, but has nothing to do with the execution of the sell stop discipline.
Once you have made the purchase, only then will the tracking of the closing prices going forward form the basis for your exit points—not before.